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Intel D845EBG2 manual

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Table of contents for the manual

  • Page 1

    Intel ® Desktop Boards D845EPT2 and D845EBG2 Product Guide Order Number: A84611-001[...]

  • Page 2

    Revision History Revision Revision History Date 001 Final dr aft of the Int el ® Desktop Boards D845EPT2 and D845EBG2 Pr oduct Guide. March 2002 If an FCC decl aration of c onformit y mark ing is pres ent on the board, t he followi ng stat ement applies : FCC Declaration of Conformity This devi ce compl ies wit h Part 15 of t he FCC Rules. Operati[...]

  • Page 3

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

  • Page 4

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide iv Installi ng and Removing a P rocessor ................................................................................. 24 Install ing a Pro cessor ................................................................................................ 24 Install ing the Pr ocessor F an H eat Si [...]

  • Page 5

    Contents v 5 Technical Reference Connectors ..................................................................................................................... .... 61 Back Panel Connectors ............................................................................................. 62 Midboard Connectors .........................................[...]

  • Page 6

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide vi Tables 1. Feature Summa ry ........................................................................................................ 7 2. Processors Supported by the Desktop Boards D845E PT2 and D845EBG2 .............. 11 3. RJ-45 LAN C onnector LEDs .......................................[...]

  • Page 7

    7 1 Desktop Board Features ✏ NOTE The Intel ® Desktop Board D845EPT2 layout w as used for illustrations unless otherwise noted. Table 1 describes the major features of the Desktop Boards D845EPT2 and D845EBG2. Table 1. Feature Summary Form Factors • mic roATX at 8.2 inches by 9.6 inches (D esktop Board D845EPT2) • ATX at 8.2 inches by 12.0 i[...]

  • Page 8

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 8 Table 1. Feature Summary ( continued) Expansion Capabilities • Des ktop Board D845EPT2: — Three PCI bus add-in card connec tors — One AGP connector — One optional CNR connector (slot s hared with PCI bus connec tor 3) • Des ktop Board D845EBG2: — Six PCI bus add-in card connec [...]

  • Page 9

    Desktop Board Features 9 Desktop Board Components Figure 1 shows the location of the major components on the Desktop Board D845EPT2. OM13673 E D I G H F S PM Q N O A L Y X K Z BB R AA T U V J B C W DD CC A Audio codec P Floppy drive c onnector B AGP connector Q Firmware Hub (FWH) C CD-ROM connector (ATAPI) R Intel 82801DB I/O Controller Hub (ICH 4)[...]

  • Page 10

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 10 Figure 2 shows the location of the major components on the Desktop Board D845EBG2. OM13672 E D I G H F S P M Q N O A L DD Y X K Z BB R AA T U V J B C W CC A Audio codec P Floppy drive connec tor B AGP connector Q Firmware Hub (FWH) C CD-ROM connector (ATAPI) R Intel 82801DB I/O Controller[...]

  • Page 11

    Desktop Board Features 11 Processor CAUTION Failure to use an ATX12V power supply, or not connecting the additional power supply lead to the Desktop Board D845EPT2 or D845EBG2 may result in damage to the Intel desktop boards and/or power supply. The Desktop Boards D845EPT2 and D845EBG2 support a single Intel Pentium 4 processor. Processors are not [...]

  • Page 12

    Intel Desktop Boards D845EPT2 and D845EB G2 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 eff[...]

  • Page 13

    Desktop Board Features 13 Intel ® 82845E Memory Co ntroller H ub (MCH ) The MCH provides the processor, system memory, AGP, and hub interfaces in the Intel 845E chipset platform. Features on Desktop Boards D845EPT2 and D845EBG2 include: • Single processor support with 533/400 MHz data transfer rate • Designed to support up to 2 GB (with 512 Mb[...]

  • Page 14

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 14 Audio Subsystem The audio subsystem features the following: • Intel 845E chipset (AC ’ 97) • Analog Devices AD1981A audio codec ✏ NOTE The line out connector, located on the back panel, is designed to power either headphones or amplified speakers only. Poor audio quality may occur[...]

  • Page 15

    Desktop Board Features 15 Hi-Speed USB 2.0 Support ✏ NOTE Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. U se a shielded cable that meets the requirements for a full-speed USB device. These Intel desktop boards sup[...]

  • Page 16

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 16 Expansion Slots The Desktop Boards D845EPT2 and D 845EBG2 have the following expansion capabilities: The Desktop Board D845EPT2 has: • Three PCI bus add-in card connectors • SMBus routed to PCI bus connector 1 slot • One AGP connector • One optional CNR connector (slot shared with[...]

  • 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-configuratio[...]

  • Page 18

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 18 Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up device or event, the system quickly returns to its last known awake state. The Intel desktop b[...]

  • Page 19

    Desktop Board Features 19 Hardware Management • Power connectors • Fan connectors • Resume on Ring • Wake from USB • Wake from PS/2 keyboard/mouse • PME# wakeup support Power Conne c tors The Desktop Boards D845EPT2 and D845EBG2 have two power connectors. See Figure 15 on page 64 for the location of the power connectors. Fan Connec tors[...]

  • Page 20

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 20 Speaker A speaker is mounted on the Intel desktop board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST). Battery A battery on the Intel desktop board keeps the values in CMOS RAM and the clock current when the computer is turned off. S[...]

  • 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 • Set the BIO S jumper • Install the front panel audio solution ?[...]

  • Page 22

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 22 Installing th e I/O Shield The Desktop Boards D845EPT2 and D845EBG2 come 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[...]

  • 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 Only qualified technical personnel should do this procedure. Disconnect the computer from its power source before performing the procedures described[...]

  • Page 24

    Intel Desktop Boards D845EPT2 and D845EB G2 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 Fan Heat Si nk Cab le Connect the processor fan heat sink cable to the processor fan connector (see Figure 7). OM13667 Figure 7. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector Removing a Processo r For instruction on how to remove the proces[...]

  • Page 26

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 26 Installi ng and Removi ng Memory CAUTION To be fully compliant with all applicable Intel SD RAM memo ry specifications, the Intel desktop boards require DIMMs that support the Serial Presence Detect (SPD) data structure. You can access the PC Serial Presence D etect Specification at: http[...]

  • 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 small notch in the bottom edge of the DIMM with the key in the socket (see[...]

  • Page 28

    Intel Desktop Boards D845EPT2 and D845EB G2 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 show n in Figure 9, until the retention pin (C) completely clears the[...]

  • 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 (se[...]

  • Page 30

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 30 Setting the BIOS Confi gurati on Jumper Bl ock CAUTION Always turn off the power and unplug the power cord from the computer before changing the jumper. Moving the jumper with the power on may result in unreliable computer operation. The location of the board ’ s BIOS configuration jump[...]

  • Page 31

    Installing and Replacing Desktop Board Components 31 Installi ng the Front Panel Audi o Sol ution 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[...]

  • Page 32

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 32 Clearing Passwords This procedure assumes that the Intel desktop 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. Tu[...]

  • 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 D845EPT2 and D845EB G2 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)[...]

  • 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 D845EPT2 and D845EB G2 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 In tel ® Express BIOS Update Utility With the Intel Express BIOS Update utility you can update the syst[...]

  • Page 38

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 38 Upda ting the B IOS with the In tel ® Flash Memory Update Utility With the Intel Flash Memory Update utility you can update the system BIOS from a diskette or other bootable media. The utility available from the Web provides a simple method for creating a bootable flash memory update dis[...]

  • 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 D845EPT2 and D845EB G2 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-On 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 D845EPT2 and D845EB G2 Product Guide 42 Table 6 shows the function keys available for menu screens. Table 6. BIOS Setup P rogram Function Keys BIOS Setup Program Function K ey Description < ← > or < → > Selects a different m enu screen < ↑ > or < ↓ > Moves c ursor up or down <Tab> Moves c u[...]

  • Page 43

    Using the Setup Program 43 Exte nde d Configura tion Subme nu Maintenance Main Advanced Security Power Boot Exit Extended Configuration This submenu shown in Table 8 is used to set system control and video memory cache mode. This submenu becomes available when User Defined is selected under Extended Configuration. Table 8. Extended Configuration Su[...]

  • Page 44

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 44 Main Menu Maintenance Main Advanced Security Power Boot Exit Table 9 describes the Main Menu. This menu reports processor and memory information and is used to configure the system date and system time. Table 9. Main Menu Feature Options Description BIOS Version No options Displays the ve[...]

  • Page 45

    Using the Setup Program 45 Advanced Menu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration Table 10 describes the Advanced Menu. This menu is used to set advanced features that are avail[...]

  • Page 46

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 46 PCI Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration The submenu shown in Table 11 is used to configu[...]

  • Page 47

    Using the Setup Program 47 Boot Configura tion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration The submenu shown in Table 12 is used to set the Plug & Play options, reset c[...]

  • Page 48

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 48 Periphe ral Conf igurat ion Subme nu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration This submenu shown in Table 13 is used[...]

  • Page 49

    Using the Setup Program 49 Table 13. Periphe r al Configuration Subme nu (continued) Feature Options Description Parallel Port • Disabled • Enabled • Auto (default) Configures the parallel port. Auto assigns LPT1 the addres s 378h and the interrupt IRQ7. An * (asterisk ) display ed next to an address indicates a conflict with another dev ice.[...]

  • Page 50

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 50 IDE Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration This submenu shown in Table 14 is used to config[...]

  • Page 51

    Using the Setup Program 51 Primary/Secondary IDE Master/Slave Submenus Maintenance Main Advanced Security Power Boot Exit Boot Configuration Peripheral Configuration IDE Configuration ➜ Primary IDE Master Floppy Configuration Primary IDE Slave Event Log C onfiguration Secondary IDE Master Video Configuration Secondary IDE Slave USB Configuration [...]

  • Page 52

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 52 Table 15 . P r imary/ S econdary IDE Master/ S lave S ubmenus ( c ontinued) Feature Options Description DMA Mode • Auto (default) • SWDMA 0 • SWDMA 1 • SWDMA 2 • MW DMA 0 • MW DMA 1 • UDMA 0 • UDMA 1 • UDMA 2 • UDMA 3 • UDMA 4 • UDMA 5 SWDMA: Single word DMA. MWDMA[...]

  • Page 53

    Using the Setup Program 53 Event Log Conf igurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration The submenu shown in Table 17 is used to configure the event logging featur[...]

  • Page 54

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 54 Video Configur a tion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration The submenu shown in Table 18 is used to conf[...]

  • Page 55

    Using the Setup Program 55 USB Configura t ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Floppy Configuration Event Log Configuration Video Configuration USB Configuration The menu shown in Table 19 is used to configure USB features. Table 19. USB Confi[...]

  • Page 56

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 56 Power Menu Maintenance Main Advanced Sec urity Power Boot Exit The menu shown in Table 21 is used to set power management features. Table 21. Power M enu Feature Options Description ACPI No Options When selected, displays the ACPI s ubmenu. After Power Failure • Sta ys Off • Last Stat[...]

  • Page 57

    Using the Setup Program 57 Boot Menu Maintenance Main Advanced Sec urity 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 Quiet Boot • Disabled • Enabled (default) Disabled display s normal PO ST messages . Enabled displays OEM graphic instead of P[...]

  • Page 58

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 58 Boot Dev i c e Prior ity Subme nu Maintenance Main Advanced Sec urity Power Boot Exit Boot Device Priority Hard Disk Drives Removab le Device s 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 Op[...]

  • Page 59

    Using the Setup Program 59 Hard Disk Drives Submenu Maintenance Main Advanced Sec urity Power Boot Exit Boot Device Pri orit y Hard Disk Dr ives Removab le Device s ATAPI CD-ROM Drives The submenu shown in Table 25 is for setting hard disk drives. Table 25. Hard Disk Drives Submenu Feature Options Description 1 st Hard Disk Dri ve (Note) Dependent [...]

  • Page 60

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 60 ATAP I CD-R OM Drives Maintenance Main Advanced Sec urity Power Boot Exit Boot Device Pri orit y Hard Disk Drives Removab le Device s ATAPI CD-R OM Dr ives The submenu shown in Table 27 is for setting ATAPI CD-ROM drives. Table 27. ATAPI CD-ROM Drives Submen u Feature Options Description [...]

  • Page 61

    61 5 T echnical Reference Connectors The 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 provid[...]

  • Page 62

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 62 Back Panel Connectors Figure 13 shows the back panel connectors. OM13662 A C E B D H G F I J K L Item Description Color A PS/2 mous e port Green B PS/2 keyboard port Purple C USB 2.0 port Black D USB 2.0 port Black E Parallel port Burgundy F Serial port A Teal G RJ-45 (optional) Black H U[...]

  • Page 63

    Technical Reference 63 Midboard Connec tors Audio Connectors Figure 14 shows the location of the audio connectors. OM13661 1 4 C B 1 4 1 3 5 7 9 2 4 6 10 A Item Description Color A Front panel audio (see Table 29 for pin assignm ents) Black B Auxiliary line in White C CD-ROM Black Figure 14. Audio Conne c tors Table 29 shows the pin assignments for[...]

  • Page 64

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 64 Power and Hardware Connectors CAUTION Failure to use an ATX12V power supply, or not connecting the additional power supply lead to the D845EPT2 or D845EBG2 board may result in damage to the Intel desktop board. The Desktop Boards D845EPT2 and D845EBG2 require an ATX12V compliant power sup[...]

  • Page 65

    Technical Reference 65 Add-In Card and Peripheral Interface Connectors Figure 16 shows the add-in card and peripheral interface connectors for the Desktop Board D845EPT2. OM13659 1 2 33 34 1 2 40 39 1 2 40 39 G A B C D E F H 1 I Item Description Item Description A CNR (optional) F Secondary IDE B PCI bus connec tor 3 G Floppy drive C PCI bus connec[...]

  • Page 66

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 66 Figure 17 shows the add-in card and peripheral interface connectors for the Desktop Board D845EBG2. OM13657 1 2 33 34 1 2 40 39 1 2 40 39 A B C D H E F G I J K 1 L Item Description Item Description A CNR (optional) G PCI bus connector 1 (SMBus routed) B PCI bus connector 6 H AGP C PCI bus[...]

  • Page 67

    Technical Reference 67 Front Pane l Heade rs Figure 18 shows the location of the front panel headers. OM13658 D 1 3 5 7 2 4 6 8 C 1 3 5 7 2 4 6 8 10 B 9 1 3 5 7 2 4 6 10 A Item Description A Front panel audio (see Table 29 on page 63 for pin assignments ) B Front panel USB 2.0 (see Table 30 for pin assignments ) C Front panel D Alternate power/slee[...]

  • Page 68

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 68 Desktop Board Resources Memory Map Table 31. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 2097152 K 100000 - 7FFFFFF 2047 MB Extended Memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIO S 896 K - 960 K E0000 - EFFFF 64 KB Reserv ed 800 K - 896 [...]

  • Page 69

    Technical Reference 69 Interrup ts Table 33. 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 70

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 70[...]

  • Page 71

    71 A Error Messages and Indicators The Desktop Boards D845EPT2 and D845EBG2 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 34. The BIOS also issues a beep code (one long tone followed by two short tones) during POST if the video co[...]

  • Page 72

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 72 BIOS Error Messages When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 35. 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[...]

  • Page 73

    Error Messages and Indicator s 73 Table 35. BIOS Error Messages (continued) Error Message Explanation Memory Siz e Decreas ed Memory size has decreased s ince the last boot. If no mem ory was remov ed, then memory m ay be bad. Memory Siz e Increased M emory s ize has inc reased sinc e the last boot. If no memory was added, there may be a problem wi[...]

  • Page 74

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 74[...]

  • Page 75

    75 B Regulatory Compliance This appendix contains: • Safety standards, electromagnetic compatibility (EMC) regulations, and product certification markings for the Desktop Boards D845EPT2 and D845EBG2. • Instructions and precautions for integrators who are installing the Intel desktop board in a chassis. Safety Regulations The Desktop Boards D84[...]

  • Page 76

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 76 Product Certification Marki ngs The Desktop Boards D845EPT2 and D845EBG2 have the following product certification markings: • UL joint US/Canada Recognized Component mark: consists of small c followed by a stylized backward UR and followed by a small US. Includes adjacent UL file number[...]

  • Page 77

    Regulatory Compliance 77 Installation Precautions When you install and test the Intel 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 p[...]

  • Page 78

    Intel Desktop Boards D845EPT2 and D845EB G2 Product Guide 78 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. Typica[...]