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Intel D845GBV manual

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Table of contents for the manual

  • Page 1

    Intel ® Desktop Boards D845GRG and D845GBV Product Guide Order Number: A84615-001[...]

  • Page 2

    Revision History Revision Revision History Date -001 First release of the Intel ® Des ktop Boards D845G RG and D845G BV Product Guide. April 2002 If an FCC decl aration of c onformit y marking i s present on the board, the f ollowing st atement appl ies: FCC Declaration of Conformity This devi ce compl ies with P art 15 of t he FCC Rules. Operat i[...]

  • Page 3

    iii Contents 1 Desktop Board Features Components ..................................................................................................................... .... 9 Proce ssor ...................................................................................................................... ......11 Main Me mory ........................[...]

  • Page 4

    Intel Desktop Boards D845GR G and D845GBV Product Guide iv 2 Installing and Replacing Desktop Board Components Before You Begi n ................................................................................................................21 Install ing the I/O S hie ld .............................................................................[...]

  • Page 5

    Contents v Boot Me nu ...........................................................................................................................58 Boot D evice Prio rity Su bmenu ....................................................................................59 Hard D isk D rives Subme nu .......................................................[...]

  • Page 6

    Intel Desktop Boards D845GR G and D845GBV Product Guide vi 12. Removing the B attery ...................................................................................................35 13. B ack Panel C onnectors ................................................................................................64 14. Audio Connectors ...............[...]

  • Page 7

    7 1 Desktop Board Features ✏ NOTE The Intel ® Desktop Board D845GRG layout wa s used for illustrations unless otherwise noted. Table 1 describes the major features of Intel ® Desktop Boards D845GRG and D845GBV. Table 1. Feature Summary Form Factors • microATX at 9.6 inc hes by 8.2 inc hes (Desk top Board D845GRG ) • ATX at 12.0 inches by 8.[...]

  • Page 8

    Intel Desktop Boards D845GR G and D845GBV Product Guide 8 Table 1. Feature Summary ( continued) LAN (optional) • Intel ® 82562ET 10/100 Mbit/sec Platform LAN Connect (PLC ) device and RJ-45 connec tor Peripheral Interfaces • Up to six USB 2.0 ports — Four ports routed to the back panel — Two ports routed to the front panel USB header • T[...]

  • Page 9

    Desktop Board Features 9 Components Figure 1 shows the location of the major components on Desktop Board D845GRG. OM13590 G H A B C F D E J K L M N O P Q I R S T U W V X Y Z AA BB CC A Audio codec P Primary IDE c onnector B Front panel audio header Q Speaker C Auxiliary line-in connec tor (ATAPI) R Battery D Rear chass is fan connec tor (tachometer[...]

  • Page 10

    Intel Desktop Boards D845GR G and D845GBV Product Guide 10 Figure 2 shows the location of the major components on Desktop Board D845GBV. OM13589 A B C F D E G H J K L M N O P Q I R S T U W V X Y Z AA BB CC A Audio codec P Primary IDE c onnector B Front panel audio header Q Speaker C Auxiliary line-in connec tor (ATAPI) R Battery D Rear chass is fan[...]

  • Page 11

    Desktop Board Features 11 Processor CAUTION Failure to use an ATX12V power supply, or not connecting the additional power supply lead to Desktop Board D845GRG or D845GBV may result in damage to the desktop board and/or power supply. Desktop Boards D845GRG and D845GBV support a single Intel Pentium 4 processor or Intel Celeron processor. Processors [...]

  • Page 12

    Intel Desktop Boards D845GR G and D845GBV Product Guide 12 Main Memory ✏ NOTE To be fully compliant with all applicable Intel ® SDRAM m emory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD ) data structure. If your memory modules do not support SPD , you will see a notification to this effec[...]

  • Page 13

    Desktop Board Features 13 Intel ® 82845G Graph ics Memory Co ntroller H ub (GMC H) The GMCH provides the processor, system memory, AGP, and hub interfaces in the Intel 845 chipset platform. Features on Desktop Boards D845GRG and D845GBV include: • Single processor support with 533 MHz or 400 MHz data transfer rates • Support for up to 2 GB (wi[...]

  • Page 14

    Intel Desktop Boards D845GR G and D845GBV Product Guide 14 Graphics Subsystem The graphics subsystem features the following: • Intel 845G chipset • Intel Extreme Graphics • 1.5 V AGP connector Audio Subsystem The audio subsystem features the following: • Intel 845G chipset (AC ’ 97) • Analog Devices Inc. AD1981A audio codec ✏ NOTE The[...]

  • Page 15

    Desktop Board Features 15 RJ-4 5 LAN Connec tor LEDs Two LEDs are built into the RJ-45 LAN connector. Table 3 describes the LED states when the board is powered up and the LAN subsystem is operating. Table 3. RJ-45 LAN Connector LE Ds LED Color LED State Indicates Off 10 Mbit/sec data rate is select ed. Green On 100 Mbit/sec data rate is selec ted.[...]

  • Page 16

    Intel Desktop Boards D845GR G and D845GBV Product Guide 16 Expansion Slots Desktop Boards D845GRG and D845GBV have the following add-in card connectors: Desktop Board D845GRG has: • Three PCI bus add-in card connectors (SMBus routed to PCI bus connector 2) • One AGP connector • One optional CNR connector (slot shared with PCI bus connector 3)[...]

  • Page 17

    Desktop Board Features 17 IDE Auto Configura tion If you install an IDE device (such as a hard drive) in your computer, the IDE auto-configuration utility in the BIOS automatically detects and configures the device for your computer. You do not need to run the BIOS Setup program after installing an IDE device. You can override the auto- configurati[...]

  • Page 18

    Intel Desktop Boards D845GR G and D845GBV Product Guide 18 Suspend to RAM ( Insta ntly Ava ilable PC Tec hnology) CAUTION For Instantly Available PC technology, the 5 V standby line for the power supply must be capable of delivering adequate +5 V standby current. Failure to provide adequate standby current when using this feature can damage the pow[...]

  • Page 19

    Desktop Board Features 19 CAUTION Power supplies used with this board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary to support multiple wake events from the PC I and/or USB buses exceeds power supply capacity, the Intel desktop board m[...]

  • Page 20

    Intel Desktop Boards D845GR G and D845GBV Product Guide 20 Wake from PS /2 Keybo ard/Mouse PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state. PME# Wak eup Support When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or S5 state. Speaker A speaker is mounted on the desktop board. The spea[...]

  • Page 21

    21 2 Installing and Replacing Desktop Board Components This chapter tells you how to: • Install the I/O shield • Install and remove the desktop board • Install and remove a processor • Install and remove memory • Install and remove an AGP card • Connect the IDE cable • Connect the front panel header • Set the BIO S jumper • Instal[...]

  • Page 22

    Intel Desktop Boards D845GR G and D845GBV Product Guide 22 Installing th e I/O Shield The Intel desktop board comes with an I/O shield. When installed in the chassis, the shield blocks radio frequency transmissions, protects internal components from dust and foreign objects, and promotes correct airflow within the chassis. Install the I/O shield be[...]

  • Page 23

    Installing and Replacing Desktop Board Components 23 Installing and Removing the Desktop Board Refer to your chassis manual for instructions on installing and removing the Intel desktop board. WARNING This procedure should be done only by qualified technical personnel. Disconnect the computer from its power source before performing the procedures d[...]

  • Page 24

    Intel Desktop Boards D845GR G and D845GBV Product Guide 24 Installing and Removing a Processor Instructions on how to install the processor to the Intel desktop board are given below. Installing a Processo r CAUTION Before installing or removing the processor, make sure that AC power has been removed by unplugging the power cord from the computer; [...]

  • Page 25

    Installing and Replacing Desktop Board Components 25 Con necting the Pro cessor F an Heat S ink Cab le Connect the processor fan heat sink cable to the processor fan connector (see Figure 7). OM13599 Figure 7. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector Removing the Pro cessor For instruction on how to remove the pro[...]

  • Page 26

    Intel Desktop Boards D845GR G and D845GBV Product Guide 26 Installi ng and Removing Memory CAUTION To be fully compliant with all applicable Intel SDRAM m emory specifications, the boards require DIMMs that support the Serial Presence Detect (SPD) data structure. You can access the PC Serial Presence D etect Specification at: http://www.intel.com/t[...]

  • Page 27

    Installing and Replacing Desktop Board Components 27 5. Make sure the clips at either end of the DIMM socket(s) are pushed outward to the open position. 6. Holding the DIMM by the edges, remove it from its anti-static package. 7. Position the DIMM above the socket. Align the two small notches in the bottom edge of the DIMM with the keys in the sock[...]

  • Page 28

    Intel Desktop Boards D845GR G and D845GBV Product Guide 28 Removing the AGP Card Follow these instructions to remove the AG P card from the RM: 1. Remove the screw (B) that secures the card ’ s metal bracket (A) to the chassis back panel. 2. Push back on the RM lever (D), as shown in Figure 9, until the retention pin (C) completely clears the not[...]

  • Page 29

    Installing and Replacing Desktop Board Components 29 ✏ NOTE Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device. For example, do not connect an ATA hard drive as a slave to an ATAPI CD-ROM drive. For correct function of the cable: • Attach the cable end with the single connector to the Intel desktop board. ?[...]

  • Page 30

    Intel Desktop Boards D845GR G and D845GBV Product Guide 30 Connecting the Front Panel Header Before connecting the front panel header, observe the precautions in “ Before You Begin ” on page 21. Refer to Table 31 on page 69 for pin assignments. Setting the BIOS Confi guration Jumper Block CAUTION Always turn off the power and unplug the power c[...]

  • Page 31

    Installing and Replacing Desktop Board Components 31 Installi ng a Front Panel Audio Soluti on To install the cable that connects the front panel audio solution to the front panel audio header, follow these steps: 1. Observe the precautions in “ Before You Begin ” on page 21. 2. Turn off all peripheral devices connected to the computer. Turn of[...]

  • Page 32

    Intel Desktop Boards D845GR G and D845GBV Product Guide 32 Clearing Passwords This procedure assumes that the board is installed in the computer and the configuration jumper block is set to normal mode. 1. Observe the precautions in “ Before You Begin ” on page 21. 2. Turn off all peripheral devices connected to the computer. Turn off the compu[...]

  • Page 33

    Installing and Replacing Desktop Board Components 33 Replacing the Battery A coin-cell battery (CR2032) pow ers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the[...]

  • Page 34

    Intel Desktop Boards D845GR G and D845GBV Product Guide 34 VORSICHT Bei falschem Einsetzen einer neuen Batterie besteht Explosionsgefahr. Die Batterie darf nur durch denselben oder einen entsprechenden, vom Hersteller empfohlenen Batterietyp ersetzt werden. Entsorgen Sie verbrauchte Batterien den Anweisungen des Herstellers entsprechend. (German) A[...]

  • Page 35

    Installing and Replacing Desktop Board Components 35 To replace the battery, follow these steps: 1. Observe the precautions in “ Before You Begin ” (see page 21). 2. Turn off all peripheral devices connected to the computer. Disconnect the computer ’ s power cord from the AC power source (wall outlet or power adapter). 3. Remove the computer [...]

  • Page 36

    Intel Desktop Boards D845GR G and D845GBV Product Guide 36[...]

  • Page 37

    37 3 Updating the BIOS This chapter tells you how to update the BIOS by either using the Intel ® Express BIOS Update utility or the Intel ® Flash Memory Update Utility, and how to recover the BIO S if an update fails. Upda ting the B IOS with the Intel ® Express BIOS Update Utility With the Intel Express BIOS Update utility you can update the sy[...]

  • Page 38

    Intel Desktop Boards D845GR G and D845GBV Product Guide 38 Upda ting the B IOS with the Intel ® Flash Memory Update Utility With the Intel Flash Memory Update Utility you can update the system BIO S from a floppy disk or other bootable media. The utility available from the Web provides a simple method for creating a bootable flash memory update fl[...]

  • Page 39

    Updating the BIOS 39 Recoverin g the B IOS It is unlikely that anything will interrupt the BIOS update; how ever, if an interruption occurs, the BIOS could be damaged. The following steps explain how to recover the BIOS if an update fails. The following procedure uses recovery mode for the Setup program. See page 30 for more information on Setup mo[...]

  • Page 40

    Intel Desktop Boards D845GR G and D845GBV Product Guide 40[...]

  • Page 41

    41 4 Using the BIOS Setup Program The BIOS Setup program can be used to view and change the BIOS settings for the computer. The BIOS Setup program is accessed by pressing the <F2> key after the Power-O n Self-Test (POST) memory test begins and before the operating system boot begins. ✏ NOTE The BIOS Setup menus described in this section may[...]

  • Page 42

    Intel Desktop Boards D845GR G and D845GBV Product Guide 42 Table 6 shows the function keys available for menu screens. Table 6. BIOS Setup Program Function Keys BIOS Setup Program Function K ey Description < ← > or < → > Select s a different menu s creen < ↑ > or < ↓ > Moves c ursor up or down <Tab> Moves c urs[...]

  • Page 43

    Using the BIOS Setup Program 43 Main Menu Maintenance Mai n Advanced Sec urity Power Boot Exit Table 8 describes the Main Menu. This menu reports processor and memory information and is used to configure the system date and system time. Table 8. Main Menu Feature Options Description BIOS Version No options Displays the version of the BIO S. Process[...]

  • Page 44

    Intel Desktop Boards D845GR G and D845GBV Product Guide 44 Advanced Menu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration Table 9 describes the Advanced Menu. Th[...]

  • Page 45

    Using the BIOS Setup Program 45 PCI Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The submenu shown in Table 10 is used to configure th[...]

  • Page 46

    Intel Desktop Boards D845GR G and D845GBV Product Guide 46 Boot Configura tion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The submenu shown in Tabl[...]

  • Page 47

    Using the BIOS Setup Program 47 Periphe ral Conf iguration Subme nu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration This submenu shown in Table 12 is used for c[...]

  • Page 48

    Intel Desktop Boards D845GR G and D845GBV Product Guide 48 Table 12. Periphe ral Configuration Subme nu (continued) Feature Options Description Base I/O Address (This feature is pres ent only when Parallel Port is set to Enabled ) • 378 (default) • 278 Specifies the bas e I/O address for the parallel port, if Parallel Port is Enabled. Interrupt[...]

  • Page 49

    Using the BIOS Setup Program 49 IDE Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration This submenu shown in Table 13 is used to configure I[...]

  • Page 50

    Intel Desktop Boards D845GR G and D845GBV Product Guide 50 Primary/Secondary IDE Master/Slave Submenus Maintenance Main Advanced Secur ity Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration ➜ Primary IDE Master Diskette Configuration Primary IDE Slave Event Log C onfiguration Secondary IDE Master Video[...]

  • Page 51

    Using the BIOS Setup Program 51 Diske tte Conf iguration Subme nu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration This submenu shown in Table 15 is used to conf[...]

  • Page 52

    Intel Desktop Boards D845GR G and D845GBV Product Guide 52 Event Log Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The submenu shown in[...]

  • Page 53

    Using the BIOS Setup Program 53 Video Configur ation Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The submenu shown in Table 17 is used to configure [...]

  • Page 54

    Intel Desktop Boards D845GR G and D845GBV Product Guide 54 USB Configura tion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskett e Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The menu shown in Table 1[...]

  • Page 55

    Using the BIOS Setup Program 55 Chipset Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskett e Configuration Event Log Configuration Video Configuration USB Configuration Chipset Configuration The menu shown in Table 19 is used to configure [...]

  • Page 56

    Intel Desktop Boards D845GR G and D845GBV Product Guide 56 Security Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 20 is used to set passwords and security features. Table 20. Security Menu If no password entered previously: Feature Options Description Supervisor Pass word Is No options Reports if there is a s uperv[...]

  • Page 57

    Using the BIOS Setup Program 57 Power Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 21 is used to set power management features. Table 21. Power Menu Feature Options Description ACPI No Options When selected, dis plays the ACPI s ubmenu. After Power Failure • Stay Off • Last State (default) • Power On Determi[...]

  • Page 58

    Intel Desktop Boards D845GR G and D845GBV Product Guide 58 Boot Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 23 is used to set the boot features and the boot sequence. Table 23. Boot Menu Feature Options Description Silent Boot • Disabled • Enabled (default) Disabled display s normal PO ST messages . Enabled d[...]

  • Page 59

    Using the BIOS Setup Program 59 Boot Dev ice Pr iority Submenu Maintenance Main Advanced Security Power Boot Exit B oot Device Priority Hard Disk Drive s Removable Devi ces ATAPI CD-ROM Drives The submenu represented in Table 24 is for setting boot devices priority. Table 24. Boot Device P riority S ubmenu Feature Option s Description 1 st Boo t De[...]

  • Page 60

    Intel Desktop Boards D845GR G and D845GBV Product Guide 60 Removable Devices Submenu Maintenance Main Advanced Security Power Boot Exit Boot Devi ce P rior ity Hard Disk Drive s R emovable Devices ATAPI CD-ROM Drives The submenu in shown Table 26 is for setting removable devices. Table 26. Removable Devices Submenu Feature Options Description 1 st [...]

  • Page 61

    Using the BIOS Setup Program 61 Exit Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 28 is used to exit the BIOS Setup program, saving changes, and loading and saving defaults. Table 28. Exit Menu Feature Description Exit Saving Changes Exits and s aves the changes in CMOS SRAM. Exit Disc arding Changes Exits without[...]

  • Page 62

    Intel Desktop Boards D845GR G and D845GBV Product Guide 62[...]

  • Page 63

    63 5 T echnical Reference Board Connectors Intel desktop board connectors can be divided into three groups: • Back panel connectors • Midboard connectors — Audio connectors — Power and hardware connectors — Add-in board and peripheral interface connectors • Front panel headers CAUTION Many of the midboard and front panel connectors prov[...]

  • Page 64

    Intel Desktop Boards D845GR G and D845GBV Product Guide 64 Back Panel Connectors Figure 13 shows the back panel connectors. OM13611 A E H BF K J I L M C D G Item Description Color A PS/2 mouse port Green B PS/2 keyboard port Purple C USB 2.0 port 0 Black D USB 2.0 port 1 Black E Parallel port Burgundy F Serial port A Teal G VGA port Blue H RJ-45 (o[...]

  • Page 65

    Technical Reference 65 Midboard Connec tors Audio Connectors Figure 14 shows the location of the audio connectors. OM13612 1 4 B 1 3 5 7 9 2 4 6 10 A 4 1 C Item Description Color A Front panel audio Black B Auxiliary line in (ATAPI) White C CD-ROM (ATAPI) Black Figure 14. Audio Conne ctors Table 29 shows the pin assignments for the front panel audi[...]

  • Page 66

    Intel Desktop Boards D845GR G and D845GBV Product Guide 66 Power and Hardware Connectors CAUTION Failure to use an ATX12V power supply, or not connecting the additional power supply lead to the Desktop Boards D845GRG or D845GBV may result in damage to the desktop board. Desktop Boards D845GRG and D845GBV require an ATX12V compliant power supply to [...]

  • Page 67

    Technical Reference 67 Add-In Card and Peripheral Interface Connectors Figure 16 shows the add-in card and peripheral interface connectors for Desktop Board D845GBV. Desktop Board D845GRG has three PCI slots. OM13615 1 2 33 34 1 2 40 39 1 2 40 39 I KJ A BC D H EF G Item Description Item Description A CNR (optional) G PCI bus connector 1 B PCI bus c[...]

  • Page 68

    Intel Desktop Boards D845GR G and D845GBV Product Guide 68 Front Pane l Heade rs Figure 17 shows the location of the front panel headers. OM13616 1 3 5 7 2 4 6 8 10 B 1 3 5 7 2 4 6 10 A D 1 3 5 7 2 4 6 8 C 9 9 Item Description A Front panel audio (see Table 29 on page 65 for pin ass ignments) B Front panel USB C Front panel D Alternate power/sleep [...]

  • Page 69

    Technical Reference 69 Table 31 shows the pin assignments for the front panel header. Table 31. Front Panel Head er (J9G1) Pin Signal In/Out Description Pin Signal In/Out Description Hard Drive Activity LED Power LED 1 HD_PWR Out Hard disk LED pu ll- up (330 Ω ) to +5 V 2 HDR_BLNK_GRN Out Front panel green LED 3 HDA# Out Hard disk ac tive LED 4 H[...]

  • Page 70

    Intel Desktop Boards D845GR G and D845GBV Product Guide 70 Desktop Board Resources Memory Map Table 32. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 2097152 K 100000 - 7FFFFFF 2047 MB Ex tended Memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS 896 K - 960 K E0000 - EFFFF 64 KB R eserved 800 K - 896 K [...]

  • Page 71

    Technical Reference 71 Interrup ts Table 34. Interrupts IRQ System Resource NMI I/O channel chec k 0 Reserved, interval tim er 1 Reserved, key board buffer full 2 Reserved, cas cade interrupt from slav e PIC 3 COM2* 4 COM1* 5 LPT2 (Plug and Play option) / ** 6 Floppy drive controller 7 LPT1* 8 Real time clock 9 ** 10 ** 11 ** 12 Onboard mouse port [...]

  • Page 72

    Intel Desktop Boards D845GR G and D845GBV Product Guide 72[...]

  • Page 73

    73 A Error Messages and Indicators Desktop Boards D845GRG and D845GBV report POST errors in two ways: • By sounding a beep code • By displaying an error message on the monitor BIOS Beep Codes The BIOS beep codes are listed in Table 35. The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video configur[...]

  • Page 74

    Intel Desktop Boards D845GR G and D845GBV Product Guide 74 BIOS Error Messages When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 36. BIOS Error Messages Error Message Explanation GA20 Error An error occurred with Gate-A20 w hen switching to protec ted mode during the memory test. Pri M[...]

  • Page 75

    Error Messages and Indicator s 75 Table 36. BIOS Error Messages (continued) Error Message Explanation Memory Siz e Decreas ed Memory size has decreased s ince the last boot. If no m emory was remov ed, then memory may be bad. Memory Siz e Increased M emory s ize has inc reased sinc e the last boot. If no mem ory was added, there may be a problem wi[...]

  • Page 76

    Intel Desktop Boards D845GR G and D845GBV Product Guide 76[...]

  • Page 77

    77 B Regulatory Compliance This appendix contains: • Safety standards, electromagnetic compatibility (EMC) regulations, and product certification markings for Desktop Boards D845GRG and D845GBV. • Instructions and precautions for integrators who are installing the desktop board in a chassis. Safety Regulations Desktop Boards D845GRG and D845GBV[...]

  • Page 78

    Intel Desktop Boards D845GR G and D845GBV Product Guide 78 Product Certification Marki ngs Desktop Boards D845GRG and D845GBV have the following product certification markings: • UL joint US/Canada Recognized Component mark: consists of small c followed by a stylized backward UR and follow ed by a small US. Includes adjacent UL file number for In[...]

  • Page 79

    Regulatory Compliance 79 Installation Precautions When you install and test the desktop board, observe all warnings and cautions in the installation instructions. To avoid injury, be careful of: • Sharp pins on connectors • Sharp pins on printed circuit assemblies • Rough edges and sharp corners on the chassis • Hot components (like process[...]

  • Page 80

    Intel Desktop Boards D845GR G and D845GBV Product Guide 80 Chassis and Component Certifications Ensure that the chassis and certain components; such as the power supply, peripheral drives, wiring, and cables; are components certified for the country or market where used. Agency certification marks on the product are proof of certification. Typical [...]