Dell 740-MT manuel d'utilisation

Dell™OptiPlex™740User'sGuide  Back to Contents Page  Mini Tower Computer  Desktop Computer  Small Form Factor Computer[...]

Back to Contents Page  Advanced Features Dell™OptiPlex™740Systems User's Guide  LegacySelect Technology Control LegacySelect technology control offers legacy - full, legacy - reduced, or legacy - free solutions based on common platforms, hard - drive images, and help desk procedures.Controlisprovidedtothead[...]

A managed system is one that has Dell OpenManage Client Instrumentation set up on a network that uses IT Assistant. For information about Dell OpenManage Client Instrumentation, see the Dell OpenManage Client Instrumentation User's Guide available on the Dell Support website at support.dell.com .  Security  Chassis Intrusion Detection Th[...]

 Option Settings You cannot change or enter a new system password if either of the following two options is displayed: l  Set — A system password is assigned. l  Disabled — The system password is disabled by a jumper setting on the system board. You can only assign a system password when the following option is displayed: l  Not Set[...]

Deleting or Changing an Existing System Password  1. Enter system setup (see Entering System Setup).  2. Highlight System Password and press <Enter>.  3. When prompted, type the system password.  4. Press <Enter> twice to clear the existing system password. The setting changes to Not Set . If Not Set is displayed, the system[...]

To change an existing administrator password, you must know the administrator password.  1. Enter system setup (see Entering System Setup ).  2. Type the administrator password at the prompt.  3. Highlight Admin Password and press the left - or right - arrow key to delete the existing administrator password. The setting changes to Not Set [...]

l  To read the current amount of memory or set the type of hard drive installed Before you use system setup, it is recommended that you write down the system setup screen information for future reference.  Entering System Setup  1. Turn on (or restart) your computer.  2. WhentheblueDELL™logoisdisplayed,youmust?[...]

( Internal default)  NOTE: If USB is selected, ensure that USB Controller setup option under Onboard Devices is set to On . SATA 0 through SATA n Identifies and enables and disables the drives attached to the SATA connectors on the system board and lists the capacities for the hard drives.  NOTE: These options appear as SATA 0 through SATA 3 [...]

Video ( Auto default) selection only matters if there are two video controllers present. When Auto is selected, the add - in video controller will be used.  NOTE: A PCI Express graphics card will override the integrated video controller. Video Memory Size ( 64MB default) This setting configures the amount of system memory that is reserved for th[...]

 Changing Boot Sequence for the Current Boot You can use this feature, for example, to restart your computer to a USB device, such as a floppy drive, memory key, or CD - RW drive.  1. If you are booting to a USB device, connect the USB device to a USB connector (see Front View for mini tower computers, or Front View for desktop computers). ?[...]

 Changing Boot Sequence for Future Boots  1. Enter system setup (see Entering System Setup ).  2. Use the left - and right - arrow keys to highlight the Boot menu option, then press <Enter> to access the menu.  3. Press the up - and down - arrow keys to highlight the appropriate Boot Device option ( 1st - 4th Boot Device are avail[...]

 Clearing Forgotten Passwords   1. Follow the procedures in Before You Begin .  2. If clearing the password on a small form factor computer, remove the hard drive (see Drives ).  3. Locate the 2 - pin password jumper (PSWD) on the system board, and remove the jumper to clear the password (see Jumper Settings ).  4. If clearing the[...]

 15. Connect your computer and devices to electrical outlets, and turn them on.  16. Assign a new system and/or administrator password.  Clearing CMOS Settings   1. Follow the procedures in Before You Begin .  2. If clearing the CMOS setting on a small form factor computer, remove the hard drive (see Removing a Hard Drive ).  3[...]

 About RAID Configurations This section provides an overview of the RAID configuration that you may have selected when you purchased your computer. A number of RAID configurations are available in the computer industry for different types of uses. The Dell mini tower and desktop models of your OptiPlex computer support RAID level 0 and RAID leve[...]

 RAID Level 1 Configuration RAID level 1 uses a data - redundancy storage technique known as mirroring to enhance data integrity. When data is written to the primary drive, the data is also duplicated, or mirrored , on the second drive in the configuration. A RAID level 1 configuration sacrifices high data - access rates for its data redundancy [...]

 3. Press <Ctrl><n> when prompted to enter the RAID BIOS. The Define a New Array window appears.  4. Press <Tab> to navigate to the RAID Mode field. To create a RAID 0 configuration, use the arrow keys to select Striping . To create a RAID 1 configuration, use the arrow keys to select Mirroring .  5. Press <Tab> to [...]

 5. Click Custom , then click Next .  6. Use the drop - down box to select Striping (RAID 0) or Mirroring (RAID 1).  7. Click Next . The Free Disk Selection window appears.  8. Click to select the drives that will make up the RAID configuration, click Next , and then click Next again. The Clearing System Data window appears.  9. Clic[...]

The NVIDIA Convert Array Wizard appears.  4. Click Next .  5. Under RAID Mode Selection , select Mirroring or Striping from the drop - down menu.  6. Click Next .  7. Under Free Disk Selection , select the hard drive(s) you want to include in the (migrated) array by clicking the checkbox beside it.  8. Click Finish . The MediaShield [...]

Back to Contents Page  Battery Dell™OptiPlex™740Systems User's Guide  Replacing the Battery  Replacing the Battery  A coin - cell battery maintains computer configuration, date, and time information. The battery can last several years. The battery may need replacing if an incorrect time or date is displayed during t[...]

 6. Install the new system battery. a.  Support the battery connector by pressing down firmly on the positive side of the connector. b.  Hold the battery with the "+" facing up, and slide it under the securing tabs at the positive side of the connector. c.  Press the battery straight down into the connector until it snaps into[...]

Back to Contents Page  Before You Begin Dell™OptiPlex™740Systems User's Guide  Recommended Tools  Turning Off Your Computer  Before Working Inside Your Computer This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the [...]

 2. Disconnect any telephone or telecommunication lines from the computer.  3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to ground the system board.  4. If applicable, remove the computer stand (for instructions, see the documentation that came with the stand).   [...]

Back to Contents Page  Cleaning Your Computer Dell™Optiplex™740Systems User's Guide  Computer, Keyboard, and Monitor  Mouse  Floppy Drive  CDs and DVDs   Computer, Keyboard, and Monitor  l  Use a can of compressed air to remove dust from between the keys on the keyboard. l  To clean your m[...]

Clean your floppy drive using a commercially available cleaning kit. These kits contain pretreated floppy disks to remove contaminants that accumulate during normal operation.  CDs and DVDs If you notice problems, such as skipping, with the playback quality of your CDs or DVDs, try cleaning the discs.  1. Hold the disc by its outer edge. You [...]

Back to Contents Page  Desktop Computer Dell™Optiplex™740Systems User's Guide  About Your Desktop Computer  Inside Your Computer  About Your Desktop Computer  Front View 1 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras, or for bootabl[...]

 Back View  Back - Panel Connectors 10 floppy drive Insert a floppy disk into this drive. 11 optical drive Insert media (if supported) into this drive. 1 card slots Access connectors for any installed PCI and PCI Express cards. 2 back - panel connectors Plug serial, USB, and other devices into the appropriate connectors (see Back - Panel Conn[...]

 Inside Your Computer   adapter connector end of a network cable to either a network jack or your network or broadband device. Connect the other end of the network cable to the network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.  NOTE: Do not plug a telephone[...]

 System Board Components 1 drive release latch 2 optical drive 3 power supply 4 chassis intrusion switch (optional) 5 system board 6 card slots 7 heat sink assembly 8 front I/O panel   1 speaker connector (INT_SPKR) 2 processor socket (CPU) 3 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 4 power connector (PW_12V_A1) 5 power co[...]

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Back to Contents Page  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  YourDell™computersupportsaPS/2serialportadapterandprovidesthefollowingconnectorsforPCIandPCIExpresscards: l  Two low - profile PCI card slots l[...]

  6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.  7. Secure the card(s) by closing the card retention latch and snapping it into place.  8. Connect any cables that should be attached to the card.  9. Replace the computer cover (see Replacing the Computer Cover ).  10. If[...]

 5. If you are removing the card permanently, install a filler bracket in the empty card - slot opening.  6. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide. [...]

 4. If you are installing a new card, remove the filler bracket to create an empty card - slot opening.  5. If you are replacing a card that is already installed in the computer, remove the card.  6. If necessary, disconnect any cables connected to the card.  7. Grasp the card by its corners, and ease it out of its connector.  8. Pre[...]

a.  Align the tabs in the side of the riser - card cage with the slots on the side of the computer, and slide the riser - card cage down into place. b.  Ensure that the riser - card connectors are fully seated in the connectors on the system board. c.  Rotate the riser - card cage handle to the down position.  13. Reconnect any cables t[...]

 3. Gently lift the release tab on the card retention latch from the inside to pivot the latch open. Pivot the latch until it snaps into the open position.  4. If necessary, disconnect any cables connected to the card.  5. Grasp the card by its top corners, and ease it out of its connector.  6. If you are removing the card permanently, [...]

 11. Uninstall the card's driver. See the documentation that came with the card for instructions.  12. If you removed a sound card: a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to On (see System Setup ). b.  Connect external audio devices to the audio connectors on the back [...]

 7. Connect any cables that should be attached to the card.  8. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide.  9. Secure the card(s) by closing the card re[...]

 11. If you installed a sound card: a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to Off (see System Setup ). b.  Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the line - in connector on the back panel of the computer (se[...]

 7. If you are removing the card permanently, install a filler bracket in the empty card - slot opening.  8. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide. [...]

 4. If you are installing a new card, remove the filler bracket to create an empty card - slot opening. If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card. Grasp the card by its corners, and ease it out of its connector.  5. Prepare the new card for[...]

 8. Secure the card(s) by closing the card retention latch and snapping it into place.  9. Replace the riser - card cage: a.  Align the tabs in the side of the riser - card cage with the slots on the side of the computer, and slide the riser - card cage down into place. b.  Ensure that the riser - card connectors are fully seated in the[...]

Removing a PCI Express Card From the Riser - Card Cage  1. Follow the procedures in Before You Begin .  2. Remove the riser - card cage: a.  Check any cables connected to cards through the back - panel openings. Disconnect any cables that will not reach the riser - card cage once they are removed from the computer. b.  Rotate the riser [...]

 10. Replace the riser - card cage: a.  Align the tabs in the side of the riser - card cage with the slots on the side of the computer, and slide the riser - card cage down into place. b.  Ensure that the riser - card connectors are fully seated in the connectors on the system board. c.  Rotate the riser - card cage handle to the down p[...]

 5. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide.  6. Secure the card(s) by closing the card retention latch and snapping it into place.  7. Connect the ad[...]

Installing a Serial Port Adapter in the Riser - Card Cage  1. Follow the procedures in Before You Begin .  2. Remove the riser - card cage: a.  Check any cables connected to cards through the back - panel openings. Disconnect any cables that will not reach the riser - card cage once they are removed from the computer. b.  Rotate the ris[...]

 16. Install any drivers required for the serial port adapter.  Removing a Serial Port Adapter From the Riser - Card Cage  1. Follow the procedures in Before You Begin .  2. Remove the riser - card cage: a.  Check any cables connected to cards through the back - panel openings. Disconnect any cables that will not reach the riser - ca[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Processor  Processor   Removing the Processor  1. Follow the procedures in Before You Begin .  2. Loosen the captive screw on each side of the heat sink assembly.   3. Rotate the heat sink assembly upward, and remove the assembly from the compu[...]

 5. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor, and go to Installing the Processor .  Installing the Processor  1. Follow the procedures in Before You Begin .  2. Unpack the new processor, being careful not to bend any of the processor [...]

 5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  6. While lightly pressing down on the processor, rotate the release lever back toward the system board until it snaps into place, securing the processor.  7. Clean the thermal grease from the bottom of the heat sink.  8. Apply the new the[...]

[...]

Back to Contents Page  Drives  Drives Your computer supports: l  One SATA hard drive l  One optional floppy drive or media card reader or one second SATA hard drive l  One optional optical (CD or DVD) drive  General Installation Guidelines Connect the SATA hard drive to the connector labeled "SATA0." Connect the SATA [...]

 Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.  Optical Drive    Removing an Optical Drive  1. Follow the procedures in Before You Begin.  2. Remove the computer cover (see Removing the Computer Cover).  3. Pull up on the driv[...]

 4. Disconnect the power and data cables from the back of the drive.  5. If you are not replacing the optical drive at this time, install the optical drive insert by lowering it into the drive bay until it clicks into place. Contact Dell if you need a drive bay insert.  Installing an Optical Drive  1. Unpack the drive and prepare it for[...]

 8. Replace the computer cover (see Replacing the Computer Cover).  9. Update your configuration information by setting the appropriate Drive option ( 0 or 1 ) under Drives . See Entering System Setup for more information.  10. Verify that your computer works correctly by running the Dell Diagnostics (see Dell Diagnostics ).  Floppy Dri[...]

 4. Attach the power and floppy - drive cables to the floppy drive.  5. Connect the floppy drive cable to the DSKT connector on the system board (see System Board Components for the connector locations).  6. Align the shoulder screws with the screw guides, and slide the drive into the bay until it clicks into place.  7. Replace the opti[...]

3. Pull up on the drive release latch and slide the media card reader towards the back of the computer. Then, lift up to remove the media card reader from the computer.  4. Disconnect the media card reader cable from the back of the media card reader.  Installing the Media Card Reader  1. If you are installing a new media card reader: a. ?[...]

 7. Replace the optical drive (see Installing an Optical Drive ).  8. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  9. Replace the computer cover (see Replacing the Computer Cover ).  10. Enter system setup and set the Diskette Drive option to enable your new media card re[...]

 6. Lift the drive out of the computer and disconnect the power and hard - drive cables from the drive.  Installing a Hard Drive  1. Unpack the replacement hard drive, and prepare it for installation.  2. If your replacement hard drive does not have the plastic hard - drive bracket attached, remove the bracket from the existing drive by[...]

 4. Connect the power and data cables to the drive.  5. Locate the correct slot for the drive, and slide the drive into the bay until it clicks into place.  6. Replace the floppy drive, media card reader, or second hard drive (see Installing a Floppy Drive , Installing the Media Card Reader , or Removing and Replacing a Second Hard Drive )[...]

1. Check the documentation or the drive to verify that it is configured for your computer.  2. Follow the procedures in Before You Begin.  3. Remove the computer cover (see Removing the Computer Cover).  4. Remove the optical drive (if your configuration has one) (see Removing an Optical Drive ).  5. To remove the second hard drive: a. [...]

 11. If you have installed a replacement second hard drive, complete step12 through step16 .  12. Enter system setup, and update the SATA port option under the Drives option list (see Entering System Setup ).  13. Exit system setup, and reboot the computer.  14. Partition and logically format your drive.  15. Test the hard driv[...]

Dell™OptiPlex™740User'sGuide Models: DCSM, DCNE, and DCCY  Notes, Notices, and Cautions Information in this document is subject to change without notice. © 2007 - 2008DellInc.Allrightsreserved. Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademar[...]

Back to Contents Page  I/O Panel  I/O Panel  Removing the I/O Panel    1. Follow the procedures in Before You Begin .  2. Remove the cable from the I/O panel by pulling on the pull - loop.  3. Remove the screw that secures the I/O panel to the desktop computer.  4. Gently rotate and slide the I/O panel away from the co[...]

Back to Contents Page  Power Supply  Power Supply  Replacing the Power Supply   1. Follow the procedures in Before You Begin .  2. Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and [...]

12. Replace the computer cover (see Replacing the Computer Cover ).  13. Connect the AC power cable to the AC power connector.  DC Power Connectors  DC Power Connector P1  Pin Number  Signal name  18 - AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 GND Black 4 VCC (+5 V) Red 5 GND Black 6 VCC (+5 V) Red 7 GND Black 8 PS_PWRGOOD Gr[...]

 DC Power Connector P2  DC Power Connector P3  DC Power Connector P4  DC Power Connector P5 and P6 *Use 22 - AWG wire instead of 18 - AWG wire.  Pin Number  Signal Name  18 - AWG Wire 1 COM Black 2 COM Black 3 +12 VDC Yellow 4 +12 VDC Yellow  Pin Number  Signal name  18 - AWG Wire 1 +12VDC Yellow 2 COM Black 3 COM Blac[...]

Back to Contents Page [...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Removing the Computer Cover  Removing the Computer Cover    1. Follow the procedures in Before You Begin .  2. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.  3. Locate the cover release latch shown[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Desktop Computer (Model # DCNE) Specifications  Desktop Computer (Model # DCNE) Specifications  Microprocessor Microprocessor type AMDPhenom™processors  NOTE: The AMD Phenom processor requires the 8 - Mb NVRAM chip and is therefore available only o[...]

NIC integrated network interface with ASF 1.03 and 2.0 support as defined by DMTF Capable of 10/100/1000 communication  Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit) or PCI Express x16 graphics card or DVI graphics card  Audio Type Sigma Tel 9200 CODEC (2.1 Channel Audio) Stereo conversion 24 - bi[...]

Optional PS/2 with secondary serial port adapter two 6 - pin mini - DINs  NOTE: This option uses one of the PCI slots. Optional DVI 36 - pin connector  NOTE: This option uses one of the PCI slots. USB two front - panel and five back - panel USB 2.0 – compliant connectors Audio two connectors for line - in and line - out; two front - panel c[...]

Back to Contents Page  Heat dissipation 955.39 BTU/hr maximum Voltage manual selection power supplies — 90 to 135 V at 50/60Hz;180to265Vat50/60Hz Backup battery 3- V CR2032 lithium coin cell  Physical Height 11.4 cm (4.5 inches) Width 39.9 cm (15.7 inches) Depth 35.3 cm (13.9 inches) Weight 10.4 kg (23 lb)  Envir[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Speaker  Speaker  Installing a Speaker    1. Follow the procedures in Before You Begin .  2. Remove the cover of your computer (see Removing the Computer Cover ).  3. Attach the speaker to the system fan in the chassis of the computer.  4. C[...]

Back to Contents Page  FCC Regulatory Model (U.S. Only) Dell™Optiplex™740Systems User's Guide The following information is provided on the device or devices covered in this document in compliance with the FCC regulations: l  Productname:Dell™OptiPlex™740 l  Model numbers: DCNE, DCSM, and DCCY l  Comp[...]

Back to Contents Page  Finding Information Dell™Optiplex™740Systems User's Guide NOTE: Some features or media may be optional and may not ship with your computer. Some features or media may not be available in certain countries. NOTE: Additional information may ship with your computer.  What Are You Looking For?  Find It [...]

located on your computer. Your computer's Service Tag contains both a Service Tag number and an Express Service Code.  l  Use the Service Tag to identify your computer when you use support.dell.com or contact support. l  Enter the Express Service Code to direct your call when contacting support. Use the product key on the Microsoft Wi[...]

Back to Contents Page  NOTE: DSS may or may not be available for your computer model. l  Software upgrades and troubleshooting hints — Frequently asked questions, hot topics, and general health of your computing environment  Dell Support 3 Dell Support 3 is an automated upgrade and notification system installed on your computer. This sup[...]

Back to Contents Page  Getting Help Dell™Optiplex™740Systems User's Guide  Obtaining Assistance  Problems With Your Order  Product Information  Returning Items for Warranty Repair or Credit  Before You Call  Contacting Dell  Obtaining Assistance   1. Complete the procedures in Before[...]

la - techsupport@dell.com (Latin America and Caribbean countries only) apsupport@dell.com (Asian/Pacific countries only) support.jp.dell.com (Japan only) support.euro.dell.com (Europe only) l  Electronic Quote Service apmarketing@dell.com (Asian/Pacific countries only) sales_canada@dell.com (Canada only)  AutoTech Service Dell's automate[...]

Returns that are missing any of the preceding requirements will be refused at Dell's receiving dock and returned to you.  Before You Call Remember to fill out the Diagnostics Checklist (see Diagnostics Checklist ). If possible, turn on your computer before you call Dell for assistance and call from a telephone at or near the computer. You m[...]

Back to Contents Page  Glossary Terms in this Glossary are provided for informational purposes only and may or may not describe features included with your particular computer.  A AC — alternating current — The form of electricity that powers your computer when you plug the AC adapter power cable in to an electrical outlet. ACPI — advan[...]

but you can write to CD - R discs only once. CD - RW/DVD drive — A drive, sometimes referred to as a combo drive, that can read CDs and DVDs and write to CD - RW (rewritable CDs) and CD - R (recordable CDs) discs. You can write to CD - RW discs multiple times, but you can write to CD - R discs only once. clock speed — The speed, given in MHz, t[...]

ENERGY STAR ® — Environmental Protection Agency requirements that decrease the overall consumption of electricity. EPP — enhanced parallel port — A parallel connector design that provides bidirectional data transmission. ESD — electrostatic discharge — A rapid discharge of static electricity. ESD can damage integrated circuits found i[...]

 I IC — integrated circuit — A semiconductor wafer, or chip, on which thousands or millions of tiny electronic components are fabricated for use in computer, audio, and video equipment. IDE — integrated device electronics — An interface for mass storage devices in which the controller is integrated into the hard drive or CD drive. IEEE 1[...]

Mini PCI — A standard for integrated peripheral devices with an emphasis on communications such as modems and NICs. A Mini PCI card is a small external card that is functionally equivalent to a standard PCI expansion card. Mini - Card — A small card designed for integrated peripherals, such as communication NICs. The Mini - Card is functionally[...]

RAM — random - access memory — The primary temporary storage area for program instructions and data. Any information stored in RAM is lost when you shut down your computer. readme file — A text file included with a software package or hardware product. Typically, readme files provide installation information and describe new product enhanceme[...]

SXGA+ — super - extended graphics array plus — A video standard for video cards and controllers that supports resolutions up to 1400 x 1050. system board — The main circuit board in your computer. Also known as the motherboard . system setup — A utility that serves as an interface between the computer hardware and the operating system. Syst[...]

write - protected — Files or media that cannot be changed. Use write - protection when you want to protect data from being changed or destroyed. To write - protect a 3.5 - inch floppy disk, slide its write - protect tab to the open position. WWAN — wireless wide area network. A wireless high - speed data network using cellular technology and co[...]

Back to Contents Page  Memory Dell™Optiplex™740Systems User's Guide  DDR2 Memory Overview  Addressing Memory With 4 - GB or Greater Configurations (32 - bit Operating Systems Only)  Removing Memory  Installing Memory Your computer supports non - ECC DDR2 memory only. For more information on the type of m[...]

 Addressing Memory With 4 - GB or Greater Configurations (32 - bit Operating Systems Only) This computer supports a maximum of 8 GB of memory. Current 32 - bit operating systems, such as Microsoft ® Windows ® XP, can use a maximum of 4 GB of address space; however, the amount of memory available to the operating system is less than that [...]

 Installing Memory   1. Follow the procedures in Before You Begin .  2. If you are using: l  a desktop computer: remove the optical drive (see Removing an Optical Drive ). l  a small form factor computer: first remove the optical drive (see Removing an Optical Drive ) and then remove the floppy drive or media card reader (see Remo[...]

 6. If you are using: l  a desktop computer: replace the optical drive (see Installing an Optical Drive ). l  a small form factor computer: first replace the floppy drive or media card reader (see Installing a Floppy Drive or Media Card Reader ) and then replace the optical drive (see Installing an Optical Drive ).  7. Replace the compu[...]

Back to Contents Page  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  YourDell™computersupportsaPS/2serialadapterandprovidesthefollowingconnectorsforPCIandPCIExpresscards. l  Two PCI card slots l  One PCI Express [...]

 5. Prepare the new card for installation.   6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.  7. Secure the card(s) by closing the card retention latch and snapping it into place.  8. Connect any cables that should be attached to the card.  9. Replace the computer cover ([...]

 3. If necessary, disconnect any cables connected to the card.  4. Grasp the card by its top corners, and ease it out of its connector.  5. If you are removing the card permanently, install a filler bracket in the empty card - slot opening.  6. Before you close the card retention mechanism, ensure that: l  The tops of all cards and f[...]

a.  Enter system setup, select Integrated NIC from the Onboard Devices group, and change the setting to On (see System Setup ). b.  Connect the network cable to the integrated network connector on the back panel of the computer.  PCI Express Cards Your computer supports one PCI Express x16 card and one PCI Express x1 card. See System Board[...]

 6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.  7. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide.[...]

 Removing a PCI Express x1 Card  1. Follow the procedures in Before You Begin .  2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.  3. If necessary, disconnect any cables connected to the card.  4. Grasp the card by its top corners, and ease[...]

 5. Connect any cables that should be attached to the card.  6. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide.  7. Secure the card(s) by closing the card re[...]

a.  Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to Off (see System Setup ). b.  Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the line - in connector on the back panel of the computer (see Back - Panel Connectors ).  10. If[...]

 7. If you are removing the card permanently, install a filler bracket in the empty card - slot opening.  8. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide. [...]

 3. Remove the filler bracket (if applicable).  4. Align the PS/2 serial - port adapter bracket in the retention slot and press down firmly. Ensure that the adapter is fully seated in the slot. Before you close the card retention mechanism, ensure that: l  The tops of all adapters and filler brackets are flush with the alignment bar. l [...]

 1. Follow the procedures in Before You Begin .  2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position.  3. Disconnect the PS/2 serial adapter cable from the system board (see System Board Components ).  4. If necessary, disconnect any external cabl[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Processor  Processor   Removing the Processor  1. Follow the procedures in Before You Begin .  2. Loosen the captive screw on each side of the heat sink assembly.   3. Rotate the heat sink assembly upward, and remove it from the computer. Lay t[...]

 5. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor and go to Installing the Processor .  Installing the Processor  1. Follow the procedures in Before You Begin .  2. Unpack the new processor, being careful not to bend any of the processor p[...]

 5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  6. While lightly pressing down on the processor, rotate the release lever back toward the system board until it snaps into place, securing the processor.  7. Clean the thermal grease from the bottom of the heat sink.  8. Apply the new the[...]

10. Replace the computer cover (see Replacing the Computer Cover ). Back to Contents Page [...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Drives  Drives Your computer supports: l  Two SATA (Serial ATA) hard drives l  One optional floppy drive or Media Card Reader l  Two optical drives  General Installation Guidelines Connect SATA hard drives to the connectors labeled "SATA0" [...]

Interface connectors are keyed for correct insertion.  Power Cable Connectors  Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.  Hard Drive    Removing a Hard Drive  1. If you are replacing a hard drive that contains data you want t[...]

 4. Press in on the blue release tabs on each side of the drive and slide the drive up and out of the computer.  Installing a Hard Drive  1. Unpack the replacement hard drive, and prepare it for installation.  2. Follow the procedures in Before You Begin .  3. If your replacement hard drive does not have the plastic hard - drive brac[...]

 4. Carefully slide the hard drive into the drive bay until it clicks into place.  5. Connect the power and hard - drive cables to the drive.  6. Check all connectors to be certain that they are properly cabled and firmly seated.  7. Replace the computer cover (see Replacing the Computer Cover ).  8. If the drive you just installed i[...]

 11. Partition and logically format your drive before you proceed to the next step. See the documentation for your operating system for instructions.  12. Test the hard drive by running the Dell Diagnostics (see Dell Diagnostics ).  13. If the drive you just installed is the primary drive, install your operating system on the hard drive. ?[...]

 8. Locate and connect a SATA cable to the SATA1 connector on the system board (see System Board Components for mini tower computers).  9. Replace the computer cover (see Replacing the Computer Cover ).  Drive - Panel Inserts If you are installing a new floppy drive, media card reader, or optical drive instead of replacing a drive, remove [...]

 3. Select the drive - panel insert in front of the drive bay that you want to use.  4. Gently press the release tab of the insert to remove it from the drive panel.  5. Reattach the drive panel to the front of the computer. The drive panel only fits one way.  1 drive panel 2 release tab 3 drive - panel insert 1 optical - drive panel in[...]

Floppy Drive    Removing the Floppy Drive  1. Follow the procedures in Before You Begin .  2. Remove the drive panel by sliding the drive release latch in the direction indicated on the latch to open the panel. Then remove it from the hinges.  3. Disconnect the power and floppy - drive cables from the back of the floppy drive. [...]

 4. Attach the power and floppy - drive data cables to the floppy drive.  5. Connect the flopp - drive data cable to the DSKT connector on the system board (see System Board Components for the connector location).  6. Install the drive panel to the front of the computer. The drive panel only fits one way (see Drive - Panel Inserts ).  7[...]

 1. Follow the procedures in Before You Begin .  2. Remove the drive panel by sliding the drive release latch in the direction indicated on the latch to open the panel. Then remove it from the hinges.  3. Disconnect the media card reader cable from the back of the media card reader.  4. Slide the drive release latch in the direction ind[...]

6. Install the drive panel to the front of the computer. The drive panel only fits one way (see Drive - Panel Inserts ).  7. Replace the computer cover (see Replacing the Computer Cover ).  8. Enter system setup and use the Diskette Drive option to enable your new media card reader (see Entering System Setup ).  9. Verify that your compute[...]

 4. Align the shoulder screws on the optical drive with the shoulder screw slots, and slide the drive into the bay until it clicks into place.  5. Connect the power and optical drive cables to the drive.  6. Connect the drive cable to SATA2 or SATA3 on the system board (see System Board Components for mini tower computers). See the documen[...]

4 Back to Contents Page [...]

Back to Contents Page Dell™OptiPlex™740User'sGuide Models: DCSM, DCNE, and DCCY  Notes, Notices, and Cautions Information in this document is subject to change without notice. © 2007 - 2008DellInc.Allrightsreserved. Reproduction in any manner whatsoever without the written permission of Dell Inc. is strict[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  I/O Panel  I/O Panel  Removing the I/O Panel    1. Follow the procedures in Before You Begin .  2. Remove the screw that secures the I/O panel. Press on the release button and slide the card away from the front of the computer.  3. Carefully re[...]

[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Power Supply  Power Supply  Replacing the Power Supply   1. Follow the procedures in Before You Begin .  2. Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the tabs in the comput[...]

 9. Reconnect the DC power cables to the system board and drives.  10. Replace the computer cover (see Replacing the Computer Cover ).  11. Connect the AC power cable to the AC power connector.  DC Power Connectors  DC Power Connector P1  Pin Number  Signal name  18 - AWG Wire 1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 GND Black [...]

 DC Power Connector P2  DC Power Connectors P3, P5, P8, and P9  DC Power Connector P7 Back to Contents Page  18 GND Black 19 GND Black 20 NC NC 21 +5 VDC Red 22 +5 VDC Red 23 +5 VDC Red 24 GND Black   Pin Number  Signal Name  18 - AWG Wire 1 GND Black 2 GND Black 3 +12 VADC Yellow 4 +12 VADC Yellow  Pin Number  Signal [...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Removing the Computer Cover  Removing the Computer Cover    1. Follow the procedures in Before You Begin .  2. Lay the computer on its side as shown in the illustration.  3. Locate the cover release latch shown in the illustration. Then, slide the[...]

Back to Contents Page  Mini Tower Computer (Model #DCSM) Specifications  Mini Tower Computer (Model #DCSM) Specifications .  Microprocessor Microprocessor type AMDPhenom™processors  NOTE: The AMD Phenom processor requires the 8 - Mb NVRAM chip and is therefore available only on models that include the 8 - Mb NVRAM chip. If yo[...]

Capable of 10/100/1000 communication  Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit) or PCI Express x16 graphics card or DVI graphics card  Audio Type Sigma Tel 9200 CODEC (2.1 Channel Audio) Stereo conversion 24 - bit analog - to - digital; 24 - bit digital - to - analog  Controllers Drives two[...]

NOTE: This option uses one of the PCI slots. USB two front - panel and five back - panel USB 2.0 – compliant connectors Audio two connectors for line - in and line - out; two front - panel connectors for headphones and microphone System board connectors: SATA four 7 - pin connectors Floppy drive 34 - pin connector Serial 24 - pin connector for op[...]

Back to Contents Page   Physical Height 41.4 cm (16.3 inches) Width 18.5 cm (7.3 inches) Depth 43.9 cm (17.3 inches) Weight 12.34 kg (27.2 lb)  Environmental Temperature: Operating 10°to35°C(50°to95°F) Storage – 40°to65°C( – 40°to149°F) Relative humidity 20% to 80% (noncondensing) Maximum vibration[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Speaker  Speaker  Installing a Speaker    1. Follow the procedures in Before You Begin .  2. Remove the computer cover (see Removing the Computer Cover ).  3. Insert the speaker into the chassis of the computer.  4. Connect the cables to the[...]

4. Remove the speaker from the chassis of the computer.  5. Replace the computer cover.  6. Turn on power to the computer.  Back to Contents Page [...]

Back to Contents Page  Microsoft ® Windows ® XP and Windows Vista ® Features  Transferring Information to a New Computer  User Accounts and Fast User Switching  Setting Up a Home and Office Network  Transferring Information to a New Computer You can use your operating system "wizards" to help you transf[...]

 1. On the old computer, insert the Windows XP Operating System media.  2. On the Welcome to Microsoft Windows XP screen, click Perform additional tasks .  3. Under What do you want to do? , click Transfer files and settings ® Next .  4. On the Which computer is this? screen, click Old Computer ® Next .  5. On the Select a transfer[...]

8. Click Finish . To transfer data to the new computer:  1. On the Now go to your old computer screen on the new computer, click Next .  2. On the Where are the files and settings? screen, select the method you chose for transferring your settings and files and click Next . Follow the instructions on the screen. The wizard reads the collected[...]

Fast User Switching Fast User Switching allows multiple users to access one computer without requiring the previous user to log off.  Windows Vista  1. Click the Windows Vista Start button and then click Transfer files and settings ® Start Windows Easy Transfer. The current user's name and picture appear on the Start menu.  2. Click [...]

  Network Setup Wizard  Windows Vista  1. Click the Windows Vista Start button and then click Connect To ® Set up a connection or network .  2. Select an option under Choose a connection option .  3. Click Next , and then follow the instructions in the wizard.  Windows XP The Microsoft ® Windows ® XP operating system p[...]

Back to Contents Page  Replacing the Computer Cover Dell™Optiplex™740Systems User's Guide   1. Ensure that all cables are connected, and fold cables out of the way. Gently pull the power cables toward you so that they do not get caught underneath the drives.  2. Ensure that no tools or extra parts are left inside the c[...]

Back to Contents Page  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  PCI, PCI Express Cards, and PS/2 Serial Port Adapters  YourDell™computersupportsaPS/2serialportadapterandprovidesthefollowingconnectorsforPCIandPCIExpresscards: l  One low - profile PCI card slot l [...]

  6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot.  7. Before closing the card retention latch, ensure that: l  The tops of all cards and filler brackets are flush with the alignment guide l  The notch in the top of the card or filler bracket fits around the alignment guide ?[...]

 2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.  3. If necessary, disconnect any cables connected to the card.  4. Grasp the card by its top corners, and ease it out of its connector.  5. If you are removing the card permanently, install a filler bracket in the empty card - slot open[...]

Installing a PCI Express x16 Card or DVI Card  1. Follow the procedures in Before You Begin .  2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.  3. If you are installing a new PCI Express x16 card or DVI card, remove the filler bracket to create a card - slot opening. Then continue with s[...]

 7. Connect any cables that should be attached to the card.  8. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the alignment bar. l  The notch in the top of the card or filler bracket fits around the alignment guide.  9. Secure the card(s) by closing the card re[...]

 6. While pressing the lever, pull the removal pull tab up and remove the card out of the card connector.  7. If you are removing the card permanently, install a filler bracket in the empty card - slot opening.  8. Before you close the card retention mechanism, ensure that: l  The tops of all cards and filler brackets are flush with the[...]

 13. If you removed a network - adapter card connector: a.  Enter system setup, select Integrated NIC from the Onboard Devices group, and change the setting to On (see System Setup ). b.  Connect the network cable to the integrated network connector on the back panel of the computer.  PS/2 Serial Port Adapters   Installing a PS/2 [...]

 Removing a PS/2 Serial Port Adapter  1. Follow the procedures in Before You Begin .  2. Gently lift the release tab on the card retention latch from the inside and pivot the latch open.  3. Disconnect the PS/2 serial port cable from the system board (see System Board Components ).  4. Grasp the PS/2 serial port adapter bracket by it[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Processor  Processor   Removing the Processor  1. Follow the procedures in Before You Begin .  2. Remove the hard drive (see Removing a Hard Drive ).  3. If installed, remove the floppy drive cable from the cable routing clips on the heat sink ass[...]

 7. Remove the processor from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor, and go to Installing the Processor .  Installing the Processor  1. Follow the procedures in Before You Begin .  2. Unpack the new processor, being careful not to bend any of the processor [...]

 5. Set the processor lightly in the socket and ensure that the processor is positioned correctly.  6. While lightly pressing down on the processor, rotate the release lever back toward the system board until it snaps into place, securing the processor.  7. Clean the thermal grease from the bottom of the heat sink.  8. Apply the new the[...]

Back to Contents Page [...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Removing the Computer Cover  Removing the Computer Cover    1. Follow the procedures in Before You Begin .  2. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.  3. Locate the cover release latch shown[...]

Back to Contents Page  Drives  Drives Your computer supports: l  One SATA hard drive l  One floppy drive or Media Card Reader l  One SATA optical drive  General Installation Guidelines  1. Connect a SATA hard drive to the connector labeled "SATA0" on the system board (see System Board Components ).  2. Connect t[...]

 Connecting and Disconnecting Drive Cables When connecting and disconnecting a SATA data cable, hold the cable by the black connector at each end.  Hard Drive    Removing a Hard Drive  1. If you are replacing a hard drive that contains data you want to keep, back up your files before you begin this procedure.  2. Check the docu[...]

 7. Disconnect the power and data cable from the drive.  8. Disconnect the hard drive fan from the system board.  Installing a Hard Drive  1. Check the documentation for the drive to verify that it is configured for your computer.  2. Unpack the replacement hard drive, and prepare it for installation.  3. If your replacement hard [...]

 4. Connect the hard drive fan to the system board (see System Board Components ).  5. Connect the power and data cables to the drive.  6. Gently position the drive until it clicks into place.  7. Check all connectors to be certain that they are properly cabled and firmly seated.  8. Replace the computer cover (see Replacing the Comp[...]

Replacing a Hard - Drive Fan  1. Follow the instructions in Before You Begin .  2. Remove the hard drive (see Removing a Hard Drive ).  3. Turn the hard drive upside down, so that the hard - drive fan is visible in the bottom of the drive bracket.  4. To remove the hard - drive fan: a.  Lift the release tab on the back panel of the f[...]

 4. Disconnect the power and data cable from the back of the drive.  Installing an Optical Drive  1. Unpack the drive and prepare it for installation.  2. Check the documentation that accompanied the drive to verify that the drive is configured for your computer.  3. Connect the power and data cable to the drive.  4. Gently positi[...]

 5. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  6. Replace the computer cover (see Replacing the Computer Cover ).  7. See the documentation that came with the drive for instructions on installing any software required for drive operation.  8. Enter system setup and sele[...]

 6. If you are removing a Media Card Reader, disconnect the data cable.  7. If you are removing the Media Card Reader, remove the hard drive (see Removing a Hard Drive ).  8. Disconnect the data cable from the system board.  9. Pull up on the drive release latch and slide the floppy drive or Media Card Reader towards the back of the com[...]

 1. If you are: l  Installing a new floppy drive or Media Card Reader, remove the drive panel insert l  Replacing a drive, remove the floppy drive or Media Card Reader (see Floppy Drive and Media Card Reader ).  2. Align the screws on the drive or Media Card Reader with the bracket slots in the computer, and gently position the drive un[...]

 5. Replace the optical drive (see Optical Drive ).  6. Check all cable connections, and fold cables out of the way to provide airflow for the fan and cooling vents.  7. Replace the computer cover (see Replacing the Computer Cover ).  8. Enter system setup and use the Diskette Drive option to enable your new floppy drive (see System Set[...]

Back to Contents Page Dell™OptiPlex™740User'sGuide Models: DCSM, DCNE, and DCCY  Notes, Notices, and Cautions Information in this document is subject to change without notice. © 2007 - 2008DellInc.Allrightsreserved. Reproduction in any manner whatsoever without the written permission of Dell Inc. is strict[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  I/O Panel  I/O Panel  Removing the I/O Panel    1. Follow the procedures in Before You Begin .  2. Remove the optical drive and floppy drive or Media Card Reader from the drive bays, if installed (see Drives ).  3. Remove the processor heat sin[...]

 6. From inside the computer cover, remove the mounting screw that secures the I/O panel to the computer.  7. Ease the I/O panel back and forth to release its circular tabs from the two holes in the chassis that secure it.  8. Remove any remaining cables; note the routing of all cables, so that you can reroute them  9. Remove the I/O pa[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Power Supply  Power Supply  Replacing the Power Supply   1. Follow the procedures in Before You Begin .  2. If installed, remove the optical drive (see Removing an Optical Drive ).  3. If installed, remove the floppy drive or Media Card Reader (se[...]

12. Replace the optical drive (see Installing an Optical Drive ).  13. Replace the computer cover (see Replacing the Computer Cover ).  14. Connect the AC power cable to the power supply AC power connector.  15. Connect your computer and devices to electrical outlets, and turn them on.  DC Power Connectors  DC Power Connector P1 NOTI[...]

 DC Power Connector P2  DC Power Connectors P3  DC Power Connector P5 Back to Contents Page  19 GND Black 20 NC NC 21 VCC (+5V) Red 22 VCC (+5V) Red 23 VCC (+5V) Red 24 GND Black *Use 22 - AWG wire instead of 18 - AWG wire.  Pin Number  Signal Name  18 - AWG Wire 1 GND Black 2 GND Black 3 +12 VDC Yellow 4 +12 VDC Yellow  Pin[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Small Form Factor Computer (Model # DCCY) Specifications  Small Form Factor Computer (Model # DCCY) Specifications  Microprocessor Microprocessor type AMDPhenom™processors  NOTE: The AMD Phenom processor requires the 8 - Mb NVRAM chip and is theref[...]

 Video Type nVidia integrated video (DirectX 9.0c Shader Model 3.0 Graphics Processing Unit), PCI Express x16 graphics card, or DVI graphics card.  Audio Type Sigma Tel 9200 CODEC (2.1 Channel Audio) Stereo conversion 24 - bit analog - to - digital; 24 - bit digital - to - analog  Controllers Drives one SATA controller supporting two devic[...]

USB two front - panel and five back - panel USB 2.0 – compliant connectors Audio two connectors for line - in and line - out; two front - panel connectors for headphones and microphone System board connectors: SATA two 7 - pin connectors Floppy drive 38 - pin connector Serial 24 - pin connector for optional second serial port card Fan two 5 - pin[...]

Back to Contents Page  Weight 7.4 kg (16.4 lb)  Environmental Temperature: Operating 10°to35°C(50°to95°F) Storage – 40°to65°C( – 40°to149°F) Relative humidity 20% to 80% (noncondensing) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 0.5 octave/min Storage 0.5 G at 3 to 200 Hz at 1 octave/min Ma[...]

Back to Contents Page Dell™Optiplex™740Systems User's Guide  Speaker  Speaker  Installing a Speaker    1. Follow the procedures in Before You Begin .  2. Remove the cover of your computer (see Removing the Computer Cover ).  3. Attach the speaker to the system fan in the chassis of the computer.  4. C[...]

Back to Contents Page  Small Form Factor Computer Dell™Optiplex™740Systems User's Guide  About Your Small Form Factor Computer  Inside Your Computer  About Your Small Form Factor Computer  Front View 1 USB 2.0 connectors (2) Use the front USB connectors for devices that you connect occasionally, such as joysti[...]

 Back View  Back - Panel Connectors connector 10 3.5 - inch drive bay Can contain an optional slimline floppy drive or optional slimline media card reader. 11 optical drive Insert a slimline media (if supported) into this drive. 1 card slots Access connectors for any installed PCI and PCI Express cards. 2 back - panel connectors Plug serial, [...]

 Inside Your Computer   network adapter connector on the back panel of your computer. A click indicates that the network cable has been securely attached.  NOTE: Do not plug a telephone cable into the network connector. On computers with a network connector card, use the connector on the card. It is recommended that you use Category 5 w[...]

 System Board Components 1 drive - release latch 2 optical drive 3 power supply 4 chassis intrusion switch (optional) 5 hard drive 6 card slots (2) 7 system board 8 heat sink assembly   1 fan connector (FAN_CPU) 2 processor socket (CPU) 3 power connector (PW_12V_A1) 4 memory module connectors (DIMM_1, DIMM_2, DIMM_3, DIMM_4) 5 power connec[...]

Back to Contents Page  19 Optional DVI - card connector (DVI_HDR) 20 speaker connector (INT_SPKR)  [...]

Back to Contents Page  Reinstalling Drivers and the Operating System Dell™Optiplex™740Systems User's Guide  Drivers  Restoring Your Operating System  Reinstalling Microsoft ® Windows Vista ® and Windows ® XP   Drivers  What Is a Driver? A driver is a program that controls a device such as [...]

 6. Scroll down the list to see if any device has an exclamation point (a yellow circle with a [ ! ]) on the device icon. If an exclamation point is next to the device name, you may need to reinstall the driver or install a new driver.  Reinstalling Drivers and Utilities  Using Windows Vista Device Driver Rollback If a problem occurs on yo[...]

 2. Insert the Drivers and Utilities media. In most cases, the CD/DVD starts running automatically. If it does not, start Windows Explorer, click your CD/DVD drive directory to display the CD/DVD contents, and then double - click the autorcd.exe file. The first time that you run the CD/DVD, it might prompt you to install setup files. Click OK , [...]

To view a list of all available drivers for your computer, click Drivers in the Topic drop - down menu. To access the help files on the Drivers and Utilities media, click the question mark button or the Help link at the top of the screen.  Restoring Your Operating System The Microsoft Windows operating system provides System Restore to allow you[...]

 3. Click a calendar date to which you want to restore your computer. The Select a Restore Point screen provides a calendar that allows you to see and select restore points. All calendar dates with available restore points appear in boldface type.  4. Select a restore point and click Next . If a calendar date has only one restore point, then [...]

 5. When the boot device list appears, highlight CD/DVD/CD - RW Drive and press <Enter>.  6. Press any key to Boot from CD - ROM .  7. Follow the instructions on the screen to complete the installation. Windows XP  Before You Begin If you are considering reinstalling the Windows XP operating system to correct a problem with a newl[...]

 5. Press <Enter> to select the highlighted partition (recommended), and follow the instructions on the screen. The Windows XP Setup screen appears, and the operating system begins to copy files and install the devices. The computer automatically restarts multiple times.  6. When the Regional and Language Options screen appears, select [...]

Back to Contents Page  Solving Problems Dell™OptiPlex™740Systems User's Guide  Troubleshooting Tips Follow these tips when you troubleshoot your computer: l  If you added or removed a part before the problem started, review the installation procedures and ensure that the part is correctly installed. l  If a peripher[...]

 Drive Problems   Fill out the Diagnostics Checklist as you complete these checks.  CD and DVD drive problems turn them on.  Testthegraphicscard —  1.  Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then remove the computer cover (see Removing the Co[...]

 Problems writing to an Optical - RW drive  Hard drive problems  E- Mail, Modem, and Internet Problems    Keyboard Problems  l  Click the speaker icon in the lower - right corner of your screen. l  Ensure that the volume is turned up by clicking the slidebar and dragging it up. l  Ensure that the sound is not muted by [...]

 Fan Problems    Lockups and Software Problems   The computer does not start up  The computer stops responding  A program stops responding CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide .  Checkthekeyboardcable — [...]

 A program crashes repeatedly  A solid blue screen appears  Other software problems  Media Card Reader Problems Endtheprogram — 1.  Press <Ctrl><Shift><Esc> simultaneously. 2.  Click Applications . 3.  Click the program that is no longer responding. 4.  Click End Task . NOTE: Software usually [...]

 Memory Problems Fill out the Diagnostics Checklist as you complete these checks.   Mouse Problems  NOTE: Each slot in the media card reader is mapped to a drive letter. A media card reader slot only appears as a mapped drive when a media card is installed in it. If you attempt to access a drive that is mapped to an empty media card rea[...]

 Network Problems Fill out the Diagnostics Checklist as you complete these checks.   Power Problems Fill out the Diagnostics Checklist as you complete these checks.  1.  Enter system setup and ensure that the Mouse Port option is set to On . 2.  Exit system setup and restart the computer.  Reinstall the mouse driver — See Rei[...]

 Printer Problems Fill out the Diagnostics Checklist as you complete these checks.  properly. l  Ensure that the electrical outlet is working by testing it with another device, such as a lamp. l  Ensure that the main power cable and front panel cable are securely connected to the system board.  Ifthepowerlightisamber?[...]

 Restoring Default Settings  Serial or Parallel Device Problems Fill out the Diagnostics Checklist as you complete these checks.   Sound and Speaker Problems Fill out the Diagnostics Checklist as you complete these checks.   No sound from speakers  To restore the computer's system settings to their default values —  1[...]

 No sound from headphones  Video and Monitor Problems Fill out the Diagnostics Checklist as you complete these checks.   If the screen is blank 3.  Click the Hardware tab. 4.  Double - click the name of your CD drive. 5.  Click the Properties tab 6.  Check the Enable digital CD audio for this CD - ROM device box.  Elimina[...]

 If the screen is difficult to read Back to Contents Page  Testtheelectricaloutlet —  Ensure that the electrical outlet is working by testing it with another device, such as a lamp.  Testthemonitor —  Connect a properly working monitor to the computer, and try using the monitor. If the new monitor works[...]

Back to Contents Page  Chassis Intrusion Switch Dell™Optiplex™740Systems User's Guide  Removing the Chassis Intrusion Switch  Replacing the Chassis Intrusion Switch  Resetting the Chassis Intrusion Detector   Removing the Chassis Intrusion Switch  1. Follow the procedures in Before You Begin .  2. [...]

 Small Form Factor Computer  Replacing the Chassis Intrusion Switch  1. Gently slide the chassis intrusion switch into its slot and reconnect the cable to the system board.  2. Replace the computer cover (see Replacing the Computer Cover ).  Resetting the Chassis Intrusion Detector  1. Turn on (or restart) your computer.  2. Wh[...]

Back to Contents Page [...]

Back to Contents Page  Replacing the System Board Dell™Optiplex™740Systems User's Guide  Removing the System Board: Mini Tower, Desktop, and Small Form Factor Computers  1. Follow the procedures in Before You Begin .  2. Remove any components that restrict access to the system board such as: the (optical drive(s), flop[...]

 Small Form Factor System Board Screws Place the system board assembly that you just removed next to the replacement system board to ensure it is identical.  Replacing the System Board: Mini Tower, Desktop, and Small Form Factor Computers  1. Gently align the board into the chassis and slide it toward the back of the computer.  2. Using[...]

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Back to Contents Page Dell™Optiplex™740Systems User's Guide Information in this document is subject to change without notice. © 2007 - 2008DellInc.Allrightsreserved. Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell , the D[...]

Back to Contents Page  Mini Tower Computer Dell™Optiplex™740Systems User's Guide  About Your Mini Tower Computer  Inside Your Computer  About Your Mini Tower Computer  Front View 1 optical drive (optional) Insert media (if supported) into this drive. 2 Flexbay drive Can contain an optional floppy drive or an o[...]

 Back View  Back - Panel Connectors l  Blinking or solid amber — See Power Problems . To exit from a power - saving mode, press the power button or use the keyboard or the mouse if it is configured as a wake device in the Windows Device Manager. For more information about sleep modes and exiting from a power - saving mode, see Power Mana[...]

 Inside Your Computer  1 parallel connector Connect a parallel device, such as a printer, to the parallel connector. If you have a USB printer, plug it into a USB connector.  NOTE: The integrated parallel connector is automatically disabled if the computer detects an installed card containing a parallel connector configured to the same add[...]

  System Board Components CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide . CAUTION: To avoid electrical shock, always unplug your computer from the electrical outlet before removing the computer cover. NOTICE: Be careful when opening the computer cover t[...]

Back to Contents Page  (FRONTPANEL) (POWER1) (INTRUDER) 10 CMOS reset jumper (RTCRST) 11 battery socket (BATTERY) 12 internal USB (USB1) 13 PCI Express x16 connector (SLOT1) 14 standby power (AUX_PWR_LED) 15 PCI connector (SLOT2) 16 PCI Express x1 connector (SLOT4) 17 password jumper (PSWD) 18 PCI connector (SLOT3) 19 floppy drive connector (DSK[...]

Back to Contents Page  Troubleshooting Tools and Utilities Dell™Optiplex™740Systems User's Guide  Dell Diagnostics  System Lights  Diagnostic Lights  Beep Codes  Error Messages  Resolving Software and Hardware Incompatibilities  Dell Diagnostics   When to Use the Dell Diagnostics If [...]

 3. When the boot device list appears, highlight IDE CD - ROM Device and press <Enter>.  4. Select the IDE CD - ROM Device option from the CD boot menu.  5. Select the Boot from CD - ROM option from the menu that appears.  6. Type 1 to start the Drivers and Utilities media menu.  7. Type 2 to start the Dell Diagnostics.  8. [...]

 Diagnostic Lights  To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front panel. The lights can be off or green. When the computer starts normally, the patterns or codes on the lights change as the boot process completes. If the POST portion of sys[...]

 Beep Codes Your computer might emit a series of beeps during start - up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code consists of one long beep and then two short beeps. This beep code tells you that the computer encountered a memory test failure. If your[...]

 Badcommandorfilename —  Ensure that you spelled the command correctly, put spaces in the proper place, and used the correct pathname.  Bad error - correctioncode(ECC)ondiskread —  See Drive Problems .  Controllerhasfailed —  See Drive Problems .  Dataerror — S[...]

 Memory data line failure at address , read value expecting value —   Memory double word logic failure at address , read value expecting value —   Memory odd/even logic failure at address , read value expecting value  —  Memory write/read failure at address , read value expecting value —   Memory[...]

 Resolving Software and Hardware Incompatibilities If a device is either not detected during the operating system setup or is detected but incorrectly configured, you can use Device Manager or the Hardware Troubleshooter to resolve the incompatibility.  Microsoft ® Windows ® XP To resolve incompatibilities using Device Manager:  1.[...]

 3. Click Hardware Troubleshooter in the Search Results list.  4. In the Hardware Troubleshooter list, click I need to resolve a hardware conflict on my computer , and click Next . Back to Contents Page [...]

Back to Contents Page  Warranty Dell™Optiplex™740Systems User's Guide Dell Inc. ("Dell") manufactures its hardware products from parts and components that are new or equivalent to new in accordance with industry - standard practices. For information about the Dell warranty for your computer, see the Product Informatio[...]