Dell POWEREDGE 840 manual

www .dell.com | support.dell.com Dell™ PowerEdge™ 840 Sy stems Hardware Owner’ s Manual[...]

Notes, Notices, and Cautions NOTE: A NOTE indicates important i nformation that helps you make better use of your computer . NOTICE: A NOTICE indicates either potential da mage to hardware or loss of da ta and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for propert y damage, personal injury , or death. _____________[...]

Contents 3 Contents 1 About Y our Sy stem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Other Information Y ou May Need . . . . . . . . . . . . . . . . . . . . . . . . . 9 Accessing Sy stem Featur es During Startup . . . . . . . . . . . . . . . . . . . 10 Front-Panel Features and Indicators . . . . . . . . . . . . . . . . . . . . . . [...]

4 Contents Sy stem and Setup Password Features . . . . . . . . . . . . . . . . . . . . . . 37 Using the Sy stem Password . . . . . . . . . . . . . . . . . . . . . . . . 37 Using the Setup Password . . . . . . . . . . . . . . . . . . . . . . . . . 39 3 Installing Sy stem Components . . . . . . . . . . . . . . . . . . . . 41 Recommended T ools . . . [...]

Contents 5 Cooling Shroud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Removing the Cooling Shroud . . . . . . . . . . . . . . . . . . . . . . . 64 Installing the Cooling Shroud . . . . . . . . . . . . . . . . . . . . . . . . 65 Cooling Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Removing [...]

6 Contents 4 T roubleshooting Y our Sy stem . . . . . . . . . . . . . . . . . . . . . 91 Safety First—For Y ou and Y our Sy stem . . . . . . . . . . . . . . . . . . . . . 91 Start-Up Routine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Checking the Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 T ro[...]

Contents 7 5 Running the Sy stem Diagnostics . . . . . . . . . . . . . . . . . . 111 Using Dell PowerEdge Diagnostics . . . . . . . . . . . . . . . . . . . . . . 111 Sy stem Diagnostics Features . . . . . . . . . . . . . . . . . . . . . . . . . 111 When to Use the Sy stem Diagnostics . . . . . . . . . . . . . . . . . . . . . 112 Running the Sy stem[...]

8 Contents Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155[...]

About Y our Sy stem 9 About Y our Sy stem This section describes the physical, firmware, and softwar e interface features that provide and ensure the essential functioning of your system. The ph ysical connectors on your system’s front and back panels provide convenient connectivity and system expansion capability . The system firmwar e, applicat[...]

10 About Y our Sy stem • Updates ar e sometimes included with the system to describe changes to the system, software, and/or documentation. NOTE: Alway s check for updates on support.dell.com and read the updates first because they often supersede information in other documents. • Release notes or r eadme files may be included to provide last-m[...]

About Y our Sy stem 11 Front-Panel Features and Indicators F igure 1-1 shows the controls, indicators, and connector s located on the system's front panel. T able 1-2 provides component descriptions. Figure 1-1. Front-Panel Features and Indicators 1 power button 2 power -on indicator 3 hard-drive activity indicator 4 sy stem status indicator 5[...]

12 About Y our Sy stem T able 1-2. Front-Panel Components Item Component Icon Description 1 P ower button The power button turns system power off and on. NOTICE: If you turn off the sy stem u sing the power button and the sy stem is running an ACPI-complia nt operating sy stem, the sy stem can perform an orderly shutdown befor e power is turned off[...]

About Y our Sy stem 13 Back-Panel Features and Indicators F igure 1-2 shows the connectors located on the system's back panel. Figure 1-2. Back-Panel Features 1 AC power connector 2 mouse connector 3 keyboard connector 4 serial connectors (5) 5 vid eo connector 6 USB connector (2) 7 NIC connector 8 expansion slots (5) 1 5 7 4 3 2 6 8[...]

14 About Y our Sy stem Connecting External Devices When connecting external devices to your system, follow these guidelines: • Most devices must be connected to a specific connect or and device drivers must be installed befor e the device operates properly . (Device drivers ar e normally included with your operating system softwar e or with the d[...]

About Y our Sy stem 15 Diagnostics Indicator Codes F our diagnostic indicator lights are located behind the bezel on the I/O control panel. T o access the lights, see "Opening the System" on page 43. These lights display error codes during system startup. T able 1-4 lists the causes and corr ec tive actions associated with these codes and[...]

16 About Y our Sy stem P ossible USB failure. See "T roubleshooting a USB Device" on page 95. No memory modules detected. See ""T roubleshooting System Memory" on page 100. System boar d failur e. See "G etting Help" on page 121." Memory configuration error . See "T roubleshooting System Memory" on [...]

About Y our Sy stem 17 Hard-Drive Indicator Codes If an optional SAS backplane is installed in the syst em, two indicators on each of the hard-drive carriers provide information on the status of the hard drives. See F igure 1-4 and T able 1-5. The SAS backplane firmware controls the driv e power -on/fault indicator . Figure 1-4. Hard-Drive Indicato[...]

18 About Y our Sy stem T able 1-5 lists the drive indicator patterns. Differ ent patterns are displayed as drive events occur in the system. F or example, if a hard drive fails, the "drive fa iled" pattern appears. After the drive is selected for removal, the "drive being pr epared for removal" pattern appears, followed by the &[...]

About Y our Sy stem 19 Attempting to update Remote Configuration. Please wait.... Remote Configuration is in progress. W ait until the process is complete. BIOS Update Attempt Failed BIOS remote update failed. Retry update. Caution! NVRAM_CLR jumper is installed on system board. NVR AM_CLR jumper is installed. Remove the NVR AM_CLR jumper . See &qu[...]

20 About Y our Sy stem Drive not ready Diskette missing or improperly inserted in diskette drive. Reinsert or replace the disk ette. Error: Incorrect memory configuration. Ensure memory in slots DIMM1_A and DIMM1_B, DIMM2_A and DIMM2_B match identically in size, speed, and rank. An unmatched pair of memory modules is installed. Install a matched pa[...]

About Y our Sy stem 21 Keyboard data line failure Keyboard failure Keyboard stuck key failure Loose or improperly connected keyboar d cable; faulty k eyboard; faulty keyboar d controller . Ensure that the k eyboard is properly connected. If the problem persists, replace the k eyboard. If the problem persists, see "Getting Help" on page 12[...]

22 About Y our Sy stem No boot device available F aulty or missing diskette drive, optical drive, or hard drive. Check the Integrated Devices configuration settings in the System Setup program. See "Using the System Setup P rogram" on page 29. Ensur e that either SA T A Controller , Diskette Controller , or IDE Controller is enabled. If t[...]

About Y our Sy stem 23 Plug & Play Configuration Error Error encountered in initializing PCI device; faulty system board. Install the NVR AM_CLR jumper and reboot the system. See F igure 6-1 for jumper location. Check for a BIOS update. If the problem persists, see "T roubleshooting Expansion Cards" on page 108. If the problem persist[...]

24 About Y our Sy stem SATA Port n hard disk not found SA T A hard drive not co nnected to port n . Ensure that the har d-drive cable is properly connected. See "Hard Drives" on page 53. If a drive is not connected to port n , check that the SA T A port is disabled in the System Setup program. See "Using the System Setup P rogram&quo[...]

About Y our Sy stem 25 Time-of-day not set - please run SETUP program Incorrect Ti m e or Date settings; faulty system battery . Check the Ti m e and Date settings See "Using the System Setup P rogram" in your User's Guide . If the problem persists, see "T roubleshooting the System Battery" on page 98. Timer chip counter 2 [...]

26 About Y our Sy stem Sy stem Beep Codes If an error that cannot be reported on the scr een occurs during POST , the system may emit a series of beeps that identifies the problem. NOTE: If the sy stem boots without a keyboard, mouse, or moni tor attached, the sy stem do es not issue beep codes related to those peripherals. If a beep code is emitte[...]

About Y our Sy stem 27 3-1-1 Slave DMA-r egister failure F aulty system boar d. See "Getting Help" on page 121. 3-1-2 Master DMA-r egister failure 3-1-3 Master interrupt-mask r egister failure 3-1-4 Slave interrupt-mask r egister failure 3-2-2 Interrupt vector loading failur e 3-2-4 K eyboard-controller test failure 3-3-1 CMOS failur e 3-[...]

28 About Y our Sy stem W arning Messages A warning message alerts you to a po ssible problem and prompts you to respond befor e the system continues a task. F or example, befor e you format a disk ette, a message will warn you that you may lose all data on the diskette. W arning messages usually interrup t the task and require you to r espond by ty[...]

Using the Sy stem Setup Program 29 Using the Sy stem Setup Program After you set up your system, run the System Setup program to familiarize yourself with your system configuration and optional settings. Reco rd the information for futur e reference. Y ou can use the System Setup program to: • Change the system configuration stored in NVR A M aft[...]

30 Using the Sy stem Setup Program NOTE: For most of the options, any changes that you make are recorded but do not take effect until you restart the sy stem. Sy stem Setup Options Main Screen When you enter the System Setup program, the main System Setup program screen appears (see F igure 2-1). T able 2-1. Sy stem Setup Pr ogram Navigation Key s [...]

Using the Sy stem Setup Program 31 Figure 2-1. Main Sy stem Setup Program Screen T able 2-2 lists the options and desc riptions for the information fields that appear on the main System Setup program screen. NOTE: The options for the Sy stem Setup program change base d on the sy stem configuration. NOTE: The Sy stem Setup program defaults are liste[...]

32 Using the Sy stem Setup Program T able 2-2. Sy stem Setup Program Options Option Description System Time Resets the time on the system's internal clock. System Date Resets the date on the system's internal calendar . System Memory Displays information related to installed system, video , and redundant memory , including size, type, and[...]

Using the Sy stem Setup Program 33 CPU Information Screens T able 2-3 lists the options and descriptions for the information fields that appear on the CPU Information screen. PCI IRQ Assignment Displays a screen to change the IR Q assigned to each of the integrated devices on the PCI bus, and any installed expansion cards that requir e an IRQ. Cons[...]

34 Using the Sy stem Setup Program Integrated Devices Screen T able 2-4 lists the options and descriptions for the information fields that appear on the Integrated Devices scre en. Demand-Based P ower Management ( Disabled default) Enables or disables demand-b ased power management. When enabled, the CPU P erformance State tables will be reported t[...]

Using the Sy stem Setup Program 35 Console Redirection Screen T able 2-5 lists the options and descriptions for the information fields that appear on the Console Redirection screen. Sy stem Security Screen T able 2-6 lists the options and descriptions for the information fields that appear on the System Security screen. Serial P ort ( COM1 default)[...]

36 Using the Sy stem Setup Program T able 2-6. Sy stem Security Screen Options Option Description System P assword Displays the current status of your system's passwor d security feature and allows you to assign and verify a new system password. NOTE: See "Using the Sy stem Password" on page 37 for instructions on assigning a sy stem[...]

Using the Sy stem Setup Program 37 Exit Screen After you pre ss <Esc> to e xit the System Setup program, the Exit screen displays the following options: • Save Changes and Exit • Discard Changes and Exit • Return to Setup Sy stem and Setup Password Features NOTICE: The password features provide a basic level of security for the data on [...]

38 Using the Sy stem Setup Program 3 T ype your new system password. Y ou can use up to 32 ch aracters in your passwor d. As you press each character k ey (or the spacebar for a blank space), a placeholder appears in the field. The password assignment is not case-sensitive. Howeve r , certain k ey combinations are not valid. If you enter one of the[...]

Using the Sy stem Setup Program 39 Even after you shut down and restart the system, t he error message continues to be displayed until the correct passwor d is entered. NOTE: Y ou can use the Password Status option in conjunction with the Sy stem Password and Setup Password options to further prote ct your sy stem from unauthorized changes. Deletin[...]

40 Using the Sy stem Setup Program Operating With a Setup Password Enabled If Setup P assword is set to Enabled , you must enter the corr ect setup password befor e you can modify most of the System Setup options. When you start the System Setup program, the program prompts you to enter a password. If you do not enter the correct passwor d in three[...]

Installing Sy stem Components 41 Installing Sy stem Components This section describes how to ins tall the following system components: • Diskette drive • Optical and tape drives • Hard drives • Cooling Shroud • Cooling F ans • P ower supply • Expansion cards •M e m o r y • SAS controller card • Microprocessor • System battery [...]

42 Installing Sy stem Components Inside the Sy stem In F igure 3-1, the system cover is opened and the fron t bezel r emoved to provide an interior view of the system. Figure 3-1. Inside the Sy stem The system board can accommodate a single processor , five expansion car ds, and four memory modules. The hard-drive cage provides space for up to four[...]

Installing Sy stem Components 43 Opening the Sy stem CAUTION: Only trained service technicians are authorized to remove the sy stem cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety pr ecautions, working inside the computer and protec[...]

44 Installing Sy stem Components Removing the Cover CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety pr ecautions, working inside the computer and prote[...]

Installing Sy stem Components 45 Before you install a 5.25-inch drive in an empty e xternal drive bay , you must first remove both front-panel drive inserts. If you remove a 5.25-inch drive permanently , you must install both inserts. Removing the Front-Panel Drive Inserts CAUTION: Only trained service technicians ar e authorized to remove the sy s[...]

46 Installing Sy stem Components Figure 3-4. Removing the Front-Panel Drive Inserts Installing the Front-Panel Drive Inserts CAUTION: Only trained service technicians are authorized to remove the sy s tem cover and access any of the components inside the sy stem. Before performing any procedure, see your Product Informatio n Guide for complete info[...]

Installing Sy stem Components 47 Closing the Sy stem Replacing the Cover 1 Ensure that all cables ar e connect ed, and fold cables out of the way . 2 Ensure that no tools or loose parts ar e left inside the system. 3 F it the cover on the side of the sy stem, and slide the cover backward. 4 Tighten the cover thumbscr ew to secure the cover . Instal[...]

48 Installing Sy stem Components DC Power Cables Each drive must connect to a DC power cable from th e system power supply . These power cables ar e used for the 3.5-inch diskette drive, 5. 25-inch devices, and har d drives. NOTICE: T o avoid electrical damage to internal sy stem components, install a cove r connector on any unused connectors on ha[...]

Installing Sy stem Components 49 Figure 3-5. Removing or Installing a Diskette Drive Optical or T ape Drives An optical drive is standard in the first e xternal drive bay . An addition al IDE or SCSI tape drive can be installed in the second external drive bay . These drives connect either to the system board or to an optional controller car d. NOT[...]

50 Installing Sy stem Components Installing an Optical or T ape Drive CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety prec autions, working inside the [...]

Installing Sy stem Components 51 Figure 3-6. Installing or Removing an Optical or T ape Drive 7 If a controller card was supplied with the drive, install the controller car d in e xpansion slot 3, 4, or 5. See "Installing an Expansion Card" on page 72. 8 Connect a power cable to the drive. See F igure 3-6. 9 Connect the interface cable to[...]

52 Installing Sy stem Components If you are installing a SCSI device in the second dr ive bay (such as a tape backup device), connect the interface cable to the device and to channel A on the SCSI controller card. See F igure 3-7. See "System Board Connectors" on page 118 to locate the system boar d connectors. NOTE: A SCSI device attache[...]

Installing Sy stem Components 53 14 T est the drive. If you installed an IDE device, run the IDE devi ces tests in the system diagnostics to determine whether the device operates properly . See "R unning the System Diagnostics" on page 112. If you installed a SCSI device, run the SCSI cont rollers test in the system diagnostics. See "[...]

54 Installing Sy stem Components Configuring the Boot Drive The drive or device from which the system boots is determined by the boot order specified in the System Setup program (see "Using the System Setup P rogram" on page 29). T o boot the system from a har d drive or drive array , the drive(s) must be conne cted to the appropriate con[...]

Installing Sy stem Components 55 Figure 3-8. Installing or Removing a Hard Drive Installing a Hard Drive in the Drive Bay NOTE: Hot-plug capability is supp orted only when the SAS b ackplane is installed. For more information, see "Hot- Plug SA T A Hard Drives Using the SAS Backplane" on page 61. 1 Unpack the drive (and controller card, i[...]

56 Installing Sy stem Components 2 Install the hard drive in the har d-drive bay: a Slide the drive into the drive bay with the back of the drive toward the back of the drive bay . b Install the screws that secur e the drive in the drive bay . 3 Install the hard-drive bay . (See F igure 3-8.): a Slide the drive bay into the system unt il the drive [...]

Installing Sy stem Components 57 Figure 3-9. Connecting SA T A Hard Dr ives to the Integr ated Drive Controller 1 SA T A hard drive (up to four) 2 SA T A interface cable 3 SA T A_1 connector 4 SA T A_0 connector 4 2 3 1[...]

58 Installing Sy stem Components Figure 3-10. Connecting SA T A Drives to a SAS Controller Card (SAS backplane not installed) 6 Ensure that all cables ar e firmly connected and arra nged so that they will not catch on the computer cover or block airflow inside the system. 7 Close the system. See "Closing the System" on page 47. 8 Stand th[...]

Installing Sy stem Components 59 12 R un the har d drive tests in the system diagnostics to determine whether the drive operates properly . See "R unning the System Diagnostics" on page 111. – If the drive is connected to a SA T A RAID controller car d, see the RAID controller car d documentation for information on testing the controlle[...]

60 Installing Sy stem Components Figure 3-11. Removing or Installi ng a SCSI Hard-Drive Carrier Installing an Hard Drive in the Lever -Release Drive Carrier 1 T urn off the system, including any attached periphera ls, and disconnect the system from the electrical outlet. 2 Remove the bezel. See "Removing the Bezel" on page 43. 3 Open the [...]

Installing Sy stem Components 61 9 R un the SAS controllers tests and the har d-drive tests in the system diagnostics. See "R unning the System Diagnostics" on page 112. If the hard drive fails the har d-dri ve tests or does not operate prop erly , see "Getting Help" on page 121. Hot-Plug SA T A Hard Drives Using the SAS Backpla[...]

62 Installing Sy stem Components Figure 3-12. Installing th e SAS Backplane Board 5 Connect the power cable connector P3 to the pow er connector on the SAS backplane. See F igure 3-12. 6 Connect the baseboard management controller (BMC) inter -IC (I2C) cable to the SAS backplane. See F igure 3-12. 7 Connect the other end of the BMC I2C cable to con[...]

Installing Sy stem Components 63 12 Install the hard drives into the har d-drive bay . See F igure 3-11. 13 Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. 14 Install any requir ed device drivers. 15 R un the SAS controllers tests and the har d-drive tests in the system diagnostics. See &quo[...]

64 Installing Sy stem Components Removing a Hot-Plug SAS or SA T A Hard Drive NOTICE: Not all operating sy stems support ho t-plug drive installation. See the operating sy stem documentation to confirm that the operating sy stem supports this feature. 1 Remove the bezel. See "Removing the Bezel" on page 43." 2 T ak e the hard drive o[...]

Installing Sy stem Components 65 Figure 3-14. Removing the Cooling Shroud Installing the Cooling Shroud 1 Ensure that no tools or loose parts ar e left inside the system. 2 Align the anchor tabs on the cooling shro ud with the notches in the system chassis. 3 Reposition the SAS or SA T A cables and power cables so they do not obstruct the memory mo[...]

66 Installing Sy stem Components Removing the Front Sy stem Fan CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety prec autions, working inside the comput[...]

Installing Sy stem Components 67 4 Squeeze the two release tabs on the top of the fan assembly and lift the fan assembly away from the system. See F igure 3-15. Installing the Front Sy stem Fan CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performi[...]

68 Installing Sy stem Components Figure 3-16. Removing the Back Sy stem Fan Installing the Back Sy stem Fan CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about sa[...]

Installing Sy stem Components 69 5 Stand the system upright. 6 Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. Power Supply Removing the Power Supply CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. B[...]

70 Installing Sy stem Components Figure 3-17. Removin g the Power Supply 6 Slide the power supply toward the front of the system , and then lift the power supply up and out of the system. Replacing the Power Supply 1 Lower the power supply into the system and align th e mounting holes with the holes on the back panel. 2 Install the four screws secu[...]

Installing Sy stem Components 71 4 Connect the DC power cables to the following components: • POWER CONN connector on the backplane board (if applicable) • PWR_CONN and 12V connectors on the system boar d • Hard drives or SAS backplane. • Diskette drive (if applicable) • Optical drive (if applicable) • T ape backup drive (if applicable)[...]

72 Installing Sy stem Components Figure 3-18. Expansion Slots Installing an Expansion Card CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety prec autions[...]

Installing Sy stem Components 73 6 Connect any cables that should be attached to the card. See the documentation that accompanied the card for information about its cable connections. 7 Close the system. See "Closing the System" on page 47. 8 Stand the system upright. 9 Reconnect the system to its electrical outlet and turn the system on,[...]

74 Installing Sy stem Components 4 Remove the expansion car d (see F igure 3-19): a Remove the screw that secur es the expa nsion-car d bracket to the back panel. b Grasp the expansion car d by its top corners, a nd carefully remove it from the e xpansion-card connector . NOTICE: Y ou must install a filler bracket over an empty expansion slot to ma[...]

Installing Sy stem Components 75 Replacing the SAS Controller Card Battery 1 Disconnect the battery cable from the SAS controller card. Figure 3-20. Replacing the SA S Controller Card Battery 2 Remove the battery and battery holder fr om the system chassis. See F igure 3-20. 3 Insert the new battery into the battery bay , ensuring that the battery [...]

76 Installing Sy stem Components Memory Y ou can upgrade your system memory to a maximum of 8 GB by installing combinations of 512-MB, 1-GB, and 2-GB unbuffered ECC DDRII SDR AM 533- or 667-MHz memory modules . The system memory is located on the system board adjacent to the power supply connectors. See "System Boar d Connectors" on page [...]

Installing Sy stem Components 77 2 Open the system. See "Opening the System" on page 43. 3 Locate the memory module sockets. S ee "System Board Connectors" on page 118. 4 P ress the ejectors on the memory module socket down and out, as shown in F igure 3-21, to allow the memory module to be inserted into the socket. Figure 3-21.[...]

78 Installing Sy stem Components 11 (Optional) P ress <F2> to enter the System Setup program, and check the System Memory setting on the main System Setup screen. The system should have already changed the val ue to r eflect the newly installed memory . 12 If the value is incorrect, one or mor e of the me mory modules may not be installed pro[...]

Installing Sy stem Components 79 Removing the Processor CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety prec autions, working inside the computer , and[...]

80 Installing Sy stem Components Figure 3-22. Removing the Heat Sink 1 heat sink 2 securing clips (2) 2 1[...]

Installing Sy stem Components 81 5 P ress down on the processor socket r elease lever , then pull the r elease lever upwar d to the fully open position. See F igure 3-23. 6 Open the processor cover . See F igure 3-23. 7 Lift the processor vertically out of the socket. Le ave the processor cover and r elease lever in the open position so that the so[...]

82 Installing Sy stem Components NOTICE: Y ou must position the processor correctly in the socket to avoid da maging the processor and the sy stem board when you turn on the sy st em. Be careful not to touch or bend the pins on the socket. 4 Set the processor lightly in the socket and ensur e th at the processor is level in the socket. When the pro[...]

Installing Sy stem Components 83 19 R un the system diagnostics to verify that the new processor is operating correctly . See "R unning the System Diagnostics" on page 112 for information on running the diagnostics and troubleshooting any problems that may occur . Installing a RAC Card CAUTION: Only trained service technicians ar e author[...]

84 Installing Sy stem Components 4 Remove the system battery . See "System Boar d Conne ctors" on page 118 for the battery socket location on the system board. a P ull the latch away from the battery . See F igure 3-24. b Lift the battery out of the battery socket. NOTICE: Y ou must install the new sy stem battery with the side labele d &[...]

Installing Sy stem Components 85 Front I/O Panel (Service-Only Parts Procedure) Removing the Control Panel Assembly and Chassis-Intrusion Switch CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Gu[...]

86 Installing Sy stem Components Figure 3-25. Removing the Control Panel Assembly 1 assembly cable guide bracket 2 chassis floor 3 control panel assembly 4 control panel assembly cable 5 mounting screws (2 ) 6 chassis-intrusion switch 5 3 2 1 4 6[...]

Installing Sy stem Components 87 Installing the Control Panel Assembly 1 Insert the control panel assembly cable and chassi s-intrusion switch through the front of the system. 2 Thread the chassis-intrusion switch upwar d th rough the opening above the control panel slot. 3 Connect the control panel assembly cable connector to the FRONT_P ANEL conn[...]

88 Installing Sy stem Components 8 Disconnect the power cable(s) connected to the hard drives in the drive bay , or to the optional SAS backplane. 9 Remove the screws securing the drive bay and r emove the bay from the system. 10 Disconnect all remaining cables attached to the connectors on the system board: • Optical-drive interface cable (PRIMA[...]

Installing Sy stem Components 89 Figure 3-26. Removing the Sy stem Board Installing the Sy stem Board 1 Unpack the new system board. 2 Ensure that the system boar d jumpers are set the sa me as on the board that you just r emoved, and change the settings if necessary . See "System Boar d Jumpers" on page 115. 3 Remove the memory modules f[...]

90 Installing Sy stem Components 9 Connect the following cables to the system bo ar d. See "System Boar d Connectors" on page 118. • Optical-drive interface cable (PRIMAR Y_IDE connector) • Diskette-drive cable (FDD connector) • Control panel cable (FRONT_P ANEL connector) • F ront fan cable (FRONT_F AN connector) 10 Install all e[...]

T roubleshooting Y our Sy stem 91 T roubleshooting Y our Sy stem Safety First—For Y ou and Y our Sy stem T o perform certain procedures in this document, you must r emove the system cover and work inside the system. While working inside t he system, do not attempt to service the system ex cept as explained in this guide and elsew her e in your sy[...]

92 T roubleshooting Y our Sy stem Checking the Equipment This section provides troubleshooting procedures for e x ternal devices attached to the system, such as the monitor , keyboar d, or mouse. Before you perform an y of the procedures, see "T roubleshooting External Connections." T roubleshooting IRQ Assignment Conflicts Most PCI devic[...]

T roubleshooting Y our Sy stem 93 Action 1 Check the system and power co nnections to the monitor . 2 Determine whether the system has an expans ion car d with a video output connector . In this system configuration, the monitor cable should normally be connected to the connector on the expansion car d, not to the system’s integrated video connec[...]

94 T roubleshooting Y our Sy stem 2 Examine the mouse and its cable for signs of damage. If the mouse is not damaged, go to step 4. If the mouse is damaged, continue to the next step. 3 Swap the faulty mouse with a working mouse. If the problem is resolved, r eplace the fa ulty mouse. See "Getting Help" on page 121. 4 Enter the System Set[...]

T roubleshooting Y our Sy stem 95 4 T urn on the system and the serial device. If the problem is resolved, r eplace the se rial device. See "Getting Help" on page 121. If the problem persists, see "Getting Help" on page 121. T roubleshooting a USB Device Problem • System message indicates a problem with a USB device. • Devic[...]

96 T roubleshooting Y our Sy stem 2 Check the appropriate indicator on the NIC co nnector . See "NIC Indicator Codes" on page 14. • If the link indicator does not lig ht, check all cable connections. • If the activity indicator does not light, the ne twork driver files might be damaged or missing. Remove and reinstall the drivers if a[...]

T roubleshooting Y our Sy stem 97 5 Close the system. See "Closing the System" on page 47. 6 Reconnect the system to the electrical outlet, a nd turn on the system and attached peripherals. If the system does not start prop erly , see "Getting Help" on page 121. 7 If the system starts properly , shut down the system and r einsta[...]

98 T roubleshooting Y our Sy stem T roubleshooting the Sy stem Battery Problem • System message indicates a problem with the battery . • System Setup program loses system configuration information. • System date and time do not r emain current. NOTE: If the sy stem is turned off for long pe riods of time (for weeks or month s), the NVRAM may [...]

T roubleshooting Y our Sy stem 99 4 Ensure that the power supply is properly installed by r emoving and r einstalling it. See "P ower Supply" on page 69. NOTE: After installing a power supply , allow several seconds for the sy st em to recognize the power supply and to determine if it is working properly . The power indicator turns green [...]

100 T roubleshooting Y our Sy stem CAUTION: The cooling fans are hot-pluggable. T o maintain proper cooling while the sy stem is on, only replace one fan at a time. 3 Ensure that the faulty fan's power cable is firmly attached to the fan power connector . F or a hot-plug fan, remove and r eseat the fan. See "Cooling F ans" on page 65[...]

T roubleshooting Y our Sy stem 101 9 Enter the System Setup program and check the syste m memory setting. See "Using the System Setup P rogram" on page 29. If the amount of memory installed does not ma tch the system memory setting, then perform the following steps: a T urn off the system and attached peripherals, and di sconnect the syst[...]

102 T roubleshooting Y our Sy stem 6 Ensure that the disk ette drive interface cable is secu rely connected to the diskette drive and the system board. 7 Ensure that a power cable is properly connected to the drive. 8 Close the system. See "Closing the System" on page 47. 9 Reconnect the system to the electrical outlet, a nd turn on the s[...]

T roubleshooting Y our Sy stem 103 Action CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety pr ecautions, working inside the computer and protecting agai[...]

104 T roubleshooting Y our Sy stem 6 Open the system. See "Opening the System" on page 43. CAUTION: Only trained service technicians ar e authorized to remove the sy st em cover and access any of the components inside the sy st em. Before performing any procedure, see your Product Information Guide for complete information about safety pr[...]

T roubleshooting Y our Sy stem 105 b Ensure that the har d drive has been configured corr ectly for the RAID. c Exit the configuration utility and allow the system to boot to the operating system. 3 Ensure that the r equired device drivers for your SAS controller card or SAS R AID controller are installed and are configur ed correctly . See the op [...]

106 T roubleshooting Y our Sy stem 2 Enter the System Setup program and verify that the system is configured corr ectly . See "Using the System Setup P rogram." 3 T urn off the system and attached peripherals, and di sconnect the system from the electrical outlet. 4 Open the system. See "Opening the System" on page 43. 5 Ensure [...]

T roubleshooting Y our Sy stem 107 5 T urn off the system and attached peripherals, and di sconnect the system from the electrical outlet. 6 Open the system. See "Opening the System" on page 43. 7 If the hard drive is the boot drive, ensur e that the drive is configured and connected properly . See "Configuring the Boot Drive" o[...]

108 T roubleshooting Y our Sy stem 4 Check the configuration settings, make any ne cessary corr ections, and restart the system. If the problem is not resolved, continue to the ne xt step. 5 Remove the bezel. See "Removing the Bezel" on page 43. 6 T urn off the system and attached peripherals, and di sconnect the system from its electrica[...]

T roubleshooting Y our Sy stem 109 5 Ensure that each e xpansion card is firmly seated in its connector . See "Installing an Expansion Card" on page 72. 6 Close the system. See "Closing the System" on page 47. 7 Reconnect the system to the electrical outlet, a nd turn on the system and attached peripherals. If the problem persis[...]

110 T roubleshooting Y our Sy stem 4 Ensure that the processor and heat sink ar e properly installed. See "Installi ng a P rocessor" on page 81. 5 Close the system. See "Closing the System" on page 47. 6 Reconnect the system to the electrical outlet, a nd turn on the system and attached peripherals. If the problem persists, see [...]

Running Sy stem Diagnostics 111 Running the Sy stem Diagnostics If you experience a problem with your system, run th e diagnostics befor e calling for technical assistance. The purpose of the diagnostics is to test your syst em's hardwar e without requiring additional equipment or risking data loss. If you are unable to fix the pr oblem yourse[...]

112 Running Sy stem Diagnostics When to Use the Sy stem Diagnostics If a major component or device in the system does not operate properly , component failur e may be indicated. As long as the microprocessor and the sy stem's input/output devices (monitor , keyboar d, and diskette drive) ar e functioning, you can use the system diagnostics to [...]

Running Sy stem Diagnostics 113 Sy stem Diagnostics T esting Options Click the testing option in the Main Menu window . T able 5-1 provides a brief e x planation of testing options. Using the Custom T est Options When you select Custom T est in the Main Menu window , the Customize window appears and allows you to select the device(s) to be tested, [...]

114 Running Sy stem Diagnostics[...]

Jumpers and Connectors 115 Jumpers and Connectors This section provides specific information abou t the system jumpers and describes the connectors on the various boards in the system. Sy stem Board Jumpers CAUTION: Only trained service tec hnicians are authorized to remove the sy stem cover and access any of the components inside th e sy stem. See[...]

116 Jumpers and Connectors Figure 6-1. Sy stem Board Jumpers[...]

Jumpers and Connectors 117 T able 6-1. Sy stem Board Jumper Settings Jumper Setting Description P ASSWD_EN (default) The passwor d feature is enabled. The password featur e is disabled. NVR AM_CLR The configuration settings in NVR AM are clear ed at next system boot. (default) The configuration settings in NVR AM are r etained at system boot. jumpe[...]

118 Jumpers and Connectors Sy stem Board Connectors See F igure 6-2 and T able 6-2 for the locati on and description of the system board connectors. Figure 6-2. Sy stem Board Connectors 7 1 14 5 3 6 4 2 13 20 12 10 8 25 9 26 21 11 24 23 22 19 18 17 16 15[...]

Jumpers and Connectors 119 T able 6-2. Sy stem Board Connectors Item Connector Description 1 RAC_CONN Connector for the r e mote access controller (RA C) 2 S LOT_5 PCI 32-bit, 33-MHz (5- V) expansion slot connector 3 S LOT_4 PCI- X 64-bit, 133-MHz (3.3- V) expansion slot connector 4 S LOT_3 PCI- X 64-bit, 133-MHz (3.3- V) expansion slot connector 5[...]

120 Jumpers and Connectors Disabling a Forgotten Password The system's software security featur es include a system password and a setup passwor d, which are discussed in detail in "Using the System Setup P rogram" on page 29. The password jumper enables these passwor d features or disables them and clears any passwor d(s) currently [...]

Getting Help 121 Getting Help Obtaining Assistance 1 Complete the procedures in "T roubleshooting Y our System" on page 91. 2 R un the system diagnostics and recor d any information provided. 3 Make a copy of the Diagnostics Checklist (see "Dia gnostics Checklist" on page 125), and fill it out. 4 Use Dell's extensive suite [...]

122 Getting Help www .dell.com/la (Latin American countries) www .dell.ca (Canada only) • Anonymous file transfer protocol (FTP) ftp.dell.com/ Log in as user:anonymous , and use your e-mail address as your passwor d. • Electronic Support Service support@us.dell.com apsupport@dell.com (Asian/P acific countries only) support.jp.dell.com (Japan on[...]

Getting Help 123 Dell Enterprise T raining and Certification Dell Enterprise T raining and Certification is available; see www .dell.com/training for more information. This service may not be offered in all locations. Problems With Y our Order If you have a problem with your order , such as missing parts, wrong parts, or incorr ect billing, contact[...]

124 Getting Help Before Y ou Call NOTE: Have your Express Service Code r eady when you call. The code helps Dell 's automated-support telephone sy stem direct your call more efficiently . Remember to fill out the Diagnostics Checklist (see "Dia gnostics Checklist" on page 125). If possible, turn on your system before you call Dell fo[...]

Getting Help 125 Diagnostics Checklist Name: Date: Address: Phone number: Service T ag (bar code on the back of the computer): Expres s Service Code: Return Material Authorization Number ( if provided by Dell support technician): Operating system and version: P eripherals: Expansion cards: Are you connected to a network? Y es No Network, version, a[...]

126 Getting Help Contacting Dell T o contact Dell electronically , you can access the following websites: • www .dell.com • support.dell.com (support) F or specific web addresses for yo ur country , find the appropriate co untry section in the table below . NOTE: T oll-free numbers are for use withi n the country for which they are listed. NOTE[...]

Getting Help 127 Argentina (Buenos Aires) International Access Code: 00 Country Code: 54 City Code: 11 W e bsite: www .dell.com.ar E-mail: la-techsupport@dell.com E-mail for desktop and portable computers: la-techsupport@dell.com E-mail for servers and EMC ® storage products: la_enterprise@dell.com Customer Care toll-free: 0-800-444-0730 T echnica[...]

128 Getting Help Barbados W ebsite: www .dell.com/bb E-mail: la-techsupport@dell.com T echnical Support 1-800-534-3142 Belgium (Brussels) International Access Code: 00 Country Code: 32 City Code: 2 We b s i t e : support.euro .dell.com T ech Support for XPS 02 481 92 96 T ech Support for all other Dell computers 02 481 92 88 T ech Support F ax 02 4[...]

Getting Help 129 Canada (North Y ork, Ontario) International Access Code: 011 Online Order Status: www .dell.ca/ostatus AutoT ech (automated Hardwar e and W arranty Support) toll-free: 1-800-247-9362 Customer Service (Home Sales/Small Business) toll-free: 1-800-847-4096 Customer Service (med./lar ge business, government) toll-free: 1-800-326-9463 C[...]

130 Getting Help China (Xiamen) Country Code: 86 City Code: 592 T echnical Support website: support.dell.com.cn T echnical Support E-mail: cn_support@dell.com Customer Care E-mail: customer_cn@dell.com T echnical Support F ax 592 818 1350 T echnical Support (Dimension and Inspiron) toll-free: 800 858 2969 T echnical Support (OptiPlex, Latitude, and[...]

Getting Help 131 Costa Rica W e bsite: www .dell.com/cr E-mail: la-techsupport@dell.com T echnical Support toll-free: 800-012-0232 Czech Republic (P rague) International Access Code: 00 Country Code: 420 W e bsite: support.euro .dell.com E-mail: czech_dell@dell.com T echnical Support 22537 2727 Customer Care 22537 2707 Fa x 22537 2714 T echnical F [...]

132 Getting Help El Salvador We b s i t e : www .dell.com/ec E-mail: la-techsupport@dell.com T echnical Support (T elephonica) toll-free: 8006170 F inland (Helsinki) International Access Code: 990 Country Code: 358 City Code: 9 We b s i t e : support.euro .dell.com E-mail: fi_support@dell.com T echnical Support 0207 533 555 Customer Care 0207 533 5[...]

Getting Help 133 Germany (F rankfurt) International Access Code: 00 Country Code: 49 City Code: 69 W e bsite: support.euro .dell.com E-mail: tech_support_central_europe@dell.com T echnical Support for XPS 069 9792 7222 T echnical Support for all other Dell computers 069 9792-7200 Home/Small Business Customer Care 0180-5-224400 Global Segment Custom[...]

134 Getting Help Hong Kong International Access Code: 001 Country Code: 852 W ebsite: support.ap.dell.com T echnical Support E-mail: HK_support@Dell.com T echnical Support (Dimension and Inspiron) 00852-2969 3188 T echnical Support (OptiPlex, Latitude, and Dell P recision) 00852-2969 3191 T echnical Support (servers and storage) 00852-2969 3196 T e[...]

Getting Help 135 Ireland (Cherrywood) International Access Code: 00 Country Code: 353 City Code: 1 W e bsite: support.euro .dell.com E-mail: dell_direct_support@dell.com Sales Ireland Sales 01 204 4444 Dell Outlet 1850 200 778 Online Ordering HelpDesk 1850 200 778 Customer Care Home User Customer Care 01 204 4014 Small Business Customer Care 01 204[...]

136 Getting Help Jamaica E-mail: la-techsupport@dell.com T echnical Support (dial from within Jamaica only) toll-free: 1-800-326-6061 or toll-free: 1-800-975-1646 Japan (Kawasaki) International Access Code: 001 Country Code: 81 City Code: 44 We b s i t e : support.jp.dell.com T echnical Support (servers) toll-free: 0120-198-498 T echnical Support o[...]

Getting Help 137 Korea (Seoul) International Access Code: 001 Country Code: 82 City Code: 2 E-mail: krsupport@dell.com Support toll-free: 080-200-3800 Support (Dimension, PDA, Electronics and Accessories) toll-free: 080-200-3801 Sales toll-free: 080-200-3600 Fa x 2194-6202 Switchboard 2194-6000 Latin America Customer T echnical Support (Austin, T e[...]

138 Getting Help Malaysia (P enang) International Access Code: 00 Country Code: 60 City Code: 4 We b s i t e : support.ap.dell.com T echnical Support (Dell Pr ecision, OptiPlex, and Latitude) toll-free: 1 800 880 193 T echnical Support (Dimension, Inspiron, and Electronics and Accessories) toll-free: 1 800 881 306 T echnical Support (P owerApp, P o[...]

Getting Help 139 Netherlands (Amsterdam) International Access Code: 00 Country Code: 31 City Code: 20 W e bsite: support.euro .dell.com T echnical Support for XPS 020 674 45 94 T echnical Support for all other Dell computers 020 674 45 00 T echnical Support F ax 020 674 47 66 Home/Small Business Customer Care 020 674 42 00 Relational Customer Care [...]

140 Getting Help P oland (W arsaw) International Access Code: 011 Country Code: 48 City Code: 22 We b s i t e : support.euro .dell.com E-mail: pl_support_tech@dell.com Customer Service Phone 57 95 700 Customer Care 57 95 999 Sales 57 95 999 Customer Service F ax 57 95 806 Reception Desk F ax 57 95 998 Switchboard 57 95 999 P ortugal International A[...]

Getting Help 141 Singapore (Singapore) International Access Code: 005 Country Code: 65 NOTE: The phone numbers in th is section should be called from within Singap ore or Mala y sia only . W ebsite: support.ap.dell.com T echnical Support (Dimension, Inspiron, and Electronics and Accessories) t o l l - f r e e :18 0 03 9 47 4 3 0 T echnical Support [...]

142 Getting Help Spain (Madrid) International Access Code: 00 Country Code: 34 City Code: 91 We b s i t e : support.euro .dell.com Home and Small Business T echnical Support 902 100 130 Customer Care 902 118 540 Sales 902 118 541 Switchboard 902 118 541 Fa x 902 118 539 Corporate T echnical Support 902 100 130 Customer Care 902 115 236 Switchboard [...]

Getting Help 143 Ta i w a n International Access Code: 002 Country Code: 886 W e bsite: support.ap.dell.com E-mail: ap_support@dell.com T echnical Support (OptiPlex, Latitude, Inspiron, Dimension, and Electronics and Accessories) toll-free: 0080 186 1011 T echnical Support (servers and storage) toll-free: 0080 160 1256 Customer Care toll-free: 0080[...]

144 Getting Help U.K. (Bracknell) International Access Code: 00 Country Code: 44 City Code: 1344 We b s i t e : support.euro .dell.com E-mail: dell_direct_support@dell.com Customer Care website: support.euro .dell.com/uk/en/ECare/form/home.asp Sales Home and Small Business Sales 0870 907 4000 Corporate/P ublic Sector Sales 01344 860 456 Customer Ca[...]

Getting Help 145 U.S.A. (Austin, T exas) International Access Code: 011 Country Code: 1 Automated Or der-Status Service toll-free: 1-800-433-9014 AutoT ech (portable and desktop computers) toll-free: 1-800-247-9362 Hardwar e and W arranty Support (Dell TV , Printers, and Projectors ) for Relationship customers toll-free: 1-877-459-7298 Americas Con[...]

146 Getting Help U.S. V irgin Islands E-mail: la-techsupport@dell.com T echnical Support toll-free: 1-877-702-4360 V enezuela We b s i t e : www .dell.com/ve E-mail: la-techsupport@dell.com T echnical Support toll-free: 0800-100-2513 Country (City) International Access Code Country Code City Code Department Name or Service Area, Website and E-Mail [...]

Glossary 147 Glossary This section defines or identifies technical terms, abbreviations, and acronyms used in your system documents. A — Ampere(s). AC — Alternating current. ACP I — Advanced Configuration and P ower Interface. A standard interface for enabling the operating system to direct configuration and power management. ambient temperat[...]

148 Glossary cm — Centimeter(s). cmos — Complementary metal-oxide semiconductor . component — As they r elate to DMI, components include operating systems, computer systems, e xpansion cards, and peripherals that ar e compatible with DMI. Each component is made up of groups and attributes that are defined as r elevant to that component. COM n[...]

Glossary 149 expansion-card connector — A connector on the system board or riser boar d for plug ging in an expansion car d. F — F ahrenheit. FAT — F ile allocation table. The file system structure used by MS-DOS to organize and k eep track of file storage. The Microsoft ® W indows ® operating systems can optionally use a F A T file system [...]

150 Glossary KBps — Kilobyte(s) per second. key combination — A command requiring you to pr ess multiple keys at the same time (for e xample, <Ctrl><Alt><Del>). kg — Kilogram(s); 1000 grams. kHz — Kilohertz. KMM — Keyboar d/monitor/mouse. KVM — Keyboar d/video/mouse. KVM refers to a switch that allows selection of the [...]

Glossary 151 NVR AM — Nonvolatile random-access memory . Memory that does not lose its contents when you turn off your system. NVR AM is used for maintaining the date, time, and system configuration information. parity — Redundant information that is associated with a block of data. partition — Y ou can divide a hard drive into multiple physi[...]

152 Glossary ROMB — R AID on motherboard. rpm — Revolutions per minute. RT C — Real-time clock. SAS — Serial-attached SCSI. SA T A — Serial Advanced T echnology Attachment. A standard interface between the system boar d and storage devices. SCSI — Small computer system interface. An I/O bus interface with faster data tran smission rates[...]

Glossary 153 UNIX — Universal Internet Exchange. UNIX, the precursor to Linux, is an operating system written in the C programming language. uplink port — A port on a network hub or switch used to connect to other hubs or sw itches without requiring a crossover cable. UPS — Uninterruptible power supply . A battery-powered unit that automatica[...]

154 Glossary[...]

Index 155 Index Numbers 5.25-inch drives installing, 5 0 A alert messages, 28 asset tag, 33 B batteries troubleshooting, 9 8 battery removing and r eplacing, 8 3 troubleshooting the R AID car d b a t t e r y , 107 beep codes, 26 bezel installing, 4 7 boot drive configuring, 5 4 boot sequence, 32 C cables drive interface, 4 7 drive power , 4 8 CD dr[...]

156 Index 156 Index fans (continued) installing, 6 7 - 6 8 r e m o v i n g , 66-67 features back-panel, 1 3 front-panel, 1 1 front-panel drive inserts installing, 4 6 re moving, 4 5 G guidelines hard-drive installation, 5 3 memory installation, 7 6 H hard drive troubleshooting, 1 0 4 hard drives (cabled) installation guidelines, 5 3 installing, 5 5[...]

Index 157 options CPU setup, 3 3 integrated devices, 3 4 system security , 3 5 system setup, 3 0 P passwor d disabling, 1 2 0 password featur es setup, 3 7 system, 3 7 passwor d s setup, 3 9 system, 3 7 phone numbers, 126 POST accessing system features, 1 0 power supplies troubleshooting, 9 8 processor removing, 7 9 upgrades, 7 8 R RAC c a rd , 8 3[...]

158 Index 158 Index troubleshooting (continued) cooling fans, 9 9 damaged system, 9 7 diskette drive, 1 0 1 expansion car d, 1 0 8 external connections, 9 6 hard drive, 1 0 4 hard drives (SA T A), 1 0 5 ke yboard, 9 3 memory , 1 0 0 microprocessor , 1 0 9 mouse, 9 3 NIC, 9 5 power supplies, 9 8 SAS R AID controller daughter c a r d , 107 serial I/O[...]