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Intel ® Desktop Board D850GB/D850GBAL Product Guide Order Number: A30314-002.
Revision History Revision Revision History Date -001 First release. September 2000 -002 Second release. October 2000 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 C onformity This device complies with Part 15 of the FCC Rules.
iii Contents 1 Desktop Board Features Featu re Su mmary ................................................................................................................ 7 Components .....................................................................
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide iv Installi ng and Removing a P rocessor ..................................................................................30 How to Instal l the Fan H eatsi nk ......................................
Contents v Powe r and Hardw are Connectors ......................................................................72 Add-In Board and Pe ripheral Interface Connectors ............................................73 Front Panel C onnectors ..............
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide vi 23. Audio C onnectors .........................................................................................................71 24 . Powe r and Hardw are Control C onnectors ....................
7 1 Desktop Board Features Feature Summary Form Factor ATX compatible (9.6 inc hes x 12 inc hes) Processor • Support for an Intel ® Pentium ® 4 process or in a 423-Pin Grid Array (PG A) package .
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 8 Feature Summary ( continued) Management Features Hardware monitor with • Two fan sensing inputs used to monitor fan ac tivity • Remote diode temperature s ensing • Voltage sensing to detec t out of range values Instantly Available PC • Support for PCI Local Bus Specification Rev ision 2.
Desktop Board Features 9 Components Figure 1 shows the major components on the board. OM10659 A B C E F R U V Q S T P N H J K L I M CC EE DD D G AA Z BB Y X W O A. ADI AD1881 audio codec (D850GBAL only) Q. Primary IDE connector B. Auxiliary line-in c onnector (D850GBAL only ) R.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 10 Processor CAUTION The D850GB/D850GBAL board supports processors that have a 49.8 A maximum current draw (1.1 to 1.85 V core). Using a processor not in compliance with these guidelines can damage the processor, the board, and the power supply.
Desktop Board Features 11 Main Memory The board has four 2.5 V memory module sockets that support RIMMs containing Direct Rambus DRAM (RDRAM) de vices.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 12 Intel ® 850 Chipset The Intel 850 chipset consists of the following devices: • Intel 82850 Mem ory Control ler Hub (MCH) with AHA bus • Inte.
Desktop Board Features 13 Input/Output (I/O) Controller The SMSC LPC47M102 ultra I/O controller features the following: • Low pin count (LPC) interface • 3.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 14 USB Support The board has two USB ports. Two additional ports may be connected to a header on the board. You can connect two USB peripheral devices directly to the computer without an external hub.
Desktop Board Features 15 Accelerated Graphics Port (AGP) ✏ NOTE The board is only compatible with 1.5 V AGP cards. The AGP is a high-performance bus for graphics-intensive applications, such as 3D graphics. AGP is independent of the PCI bus and is intended for exclusive use with graphical display devices.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 16 PCI Auto Configura tion If you install a PCI add-in board in your computer, the PCI auto-configuration utility in the BIOS automatically detects and configures the resources (IRQs, DMA channels, and I/O space) for that add-in board.
Desktop Board Features 17 LAN S ubsystem S oftware For LAN software and drivers, refer to the D850GB link on Intel ’ s World Wide Web site at: http://support.intel.com/support/motherboards/desktop RJ-4 5 LAN Connec tor LEDs Two LEDs are built into the RJ-45 LAN connector.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 18 Power Management Features Power management is implemented at several levels, including: • Software support: Advanced Configuration and Powe.
Desktop Board Features 19 If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the LED turning amber. OM10442 CR6F1 Figure 2.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 20 5. Add all additional wake-enabled devices ’ and nonwake-enabled devices ’ standby current requirements as applicable. 6. Add all the required current totals from steps 1 through 5 to determine the total estimated standby current power supply requirement.
21 2 Installing and Replacing Desktop Board Components This chapter tells you how to: • Install and remove an AGP retention mechanism and card • Install the I/O shield • Install and remove the b.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 22 Installi ng and Removing an AGP Retention Mechani sm and Card The AGP connector supports 1.5 V 4X and 2X AGP cards. Newer cards have a retention notch as shown in Figure 3. When using notched cards, install the AGP card retention mechanism before installing a card.
Installing and Replacing Desktop Board Components 23 The AGP card RM (see Figure 4) encloses the board ’ s A GP connector and stabilizes the AGP card. Place the board (component side up) on a flat, supportive surface, preferably on the anti-static bag in which the board was shipped in.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 24 Installing an AGP Card Follow these instructions to install an AG P card: 1. Place the AGP card in the AG P connector. 2. Press down on the card until it is completely seated in the AGP connector and the card retention notch snaps into place around the RM pin.
Installing and Replacing Desktop Board Components 25 Removing the AGP Card Retention Me chanism Follow these instructions to remove the AG P card retention mechanism: 1. Using diagonal cutters (A), cut the loop (B) joining the two sides of the retention mechanism (see Figure 6).
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 26 Installing th e I/O Shield The 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.
Installing and Replacing Desktop Board Components 27 Installing and Removing the Desktop Board Refer to your chassis manual for instructions on installing and removing the board. The board is secured to the chassis by 10 screws. Figure 9 shows the locations of the mounting screw holes.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 28 Installing the Processor Retention Mechanisms To install the processor retention mechanisms (RM), follow these instructions: 1. Locate the processor RM holes as seen in Figure 10. OM10644 Figure 10.
Installing and Replacing Desktop Board Components 29 2. Using the screws provided by the chassis manufacturer, install the processor RMs to the board and chassis as shown in Figure 11.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 30 Installing and Removing a Processor CAUTION Before installing or removing the processor, make sure that AC power has been removed by unplugging the power cord from the computer; the standby power LED should not be lit (see Figure 2 on page 19).
Installing and Replacing Desktop Board Components 31 How to Install the F an Heatsin k To install the fan heatsink, follow these instructions: 1. Apply about half of the thermal grease from the syringe to the center of the processor surface, as shown in Figure 13.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 32 3. Install the heatsink clip on each side by attaching the opening at both ends of the clip (B) to the tabs on the processor RM. Then, fasten the side clip (A) to the processor RM until you hear a click.
Installing and Replacing Desktop Board Components 33 4. Connect the processor fan cable to the processor fan connector (see Figure 16). OM10661 Figure 16. Connecting the Processor Fan Cable to the Processor Fan Connector Removing a Processo r To remove a processor, follow these instructions: 1.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 34 Installing and Removi ng Memory CAUTIONS Before installing or removing RIMM modules, make sure that AC power has been removed by unplugging the power cord from the computer.
Installing and Replacing Desktop Board Components 35 1 OM10635 0 Figure 17. Installing a Memory Module To install the memory modules, follow these steps: 1. Observe the precautions in “ Before You Begin ” (see page 21). 2. Holding the memory module by the edges, remove it from its antistatic package.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 36 Replacing the Battery When your computer is turned off, a lithium battery maintains the current time-of-day clock and the values in CMOS RAM current. Figure 18 on page 37 shows the location of the battery.
Installing and Replacing Desktop Board Components 37 VORSICHT Bei falschem Ei nsetzen einer neuen Batterie best eht Explosionsgefahr. Die Bat terie darf nur durch denselben oder einen entsprechenden, vom Hersteller empfohlenen Batterietyp ersetzt werden.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 38 Connecting the IDE Cable The Intel boxed board package includes a 40-contact, 80-conductor IDE cable. It is capable of connecting two drives to the board. The cable supports the Ultra ATA-66/100 transfer protocol and is backward compatible with drives using slower IDE transfer protocols.
Installing and Replacing Desktop Board Components 39 Setting the Jumpers The board has two jumpers as shown in Figure 20: • The BIOS configuration jumper • The USB port 2 routing jumper CAUTION Always turn off the power and unplug the power cord from the computer before changing the jumper.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 40 Setti ng the BIOS Configur ation J umper The three-pin BIOS jumper, shown in Figure 20, enables all board configurations to be done in BIOS Setup. Table 4 shows the jumper settings for the Setup program modes.
Installing and Replacing Desktop Board Components 41 7. The computer starts the Setup program. Setup displays the maintenance menu. 8. Use the arrow keys to select Clear Passwords. Press <Enter> and Setup displays a pop-up screen requesting that you confirm clearing the password.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 42.
43 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 recovering the BIOS if an update fails.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 44 Obtaining the BIOS Update File You can update to a new version of the BIOS by using the BIOS update file. The BIOS update file is a compressed self-extracting archive that contains all the files you need to update the BIOS.
Updating the BIOS 45 Creating a Bootabl e Diskette ✏ NOTE When using an LS-120 diskette drive, you must use a 1.44 MB diskette as the bootable BIOS update diskette.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 46 Updating t he BIOS CAUTION The AUTOEXEC.BAT file provided w ith the update files updates the BIOS in two parts: first updating the boot block and displaying the “ Operation completed successfully ” message and then updating the BIOS core.
Updating the BIOS 47 5. Replace the computer cover, connect the power cord, turn on the computer, and allow it to boot. The recovery process will take a few minutes. 6. Listen to the speaker: • Upon applying power, drive A w ill begin to show activity.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 48.
49 4 Using the 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.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 50 Table 7 shows the function keys available for menu screens. Table 7. BIOS S etup Progr am Function Keys BIOS Setup Program Function Key Descripti.
Using the Setup Program 51 Exte nded Configura tion Submenu Maintenance Main Advanced Security Power Boot Exit Extended Configuration This submenu shown in Table 9 is used to set system control and video memory cache mode. This submenu becomes available when User Defined is selected under Extended Configuration.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 52 Main Menu Maintenance Main Advanced Security Power Boot Exit Table 10 describes the Main Menu. This menu reports processor and memory information and is used to configure the system date and system time.
Using the Setup Program 53 Advanced Menu Maintenance Main Advanced Security Power Boot Exit Table 11 describes the Advanced Menu. This menu is used to set advanced features that are available through the chipset.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 54 PCI Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE C.
Using the Setup Program 55 Boot Configura tion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE Configuration Diskette Confi.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 56 Periphe ral Conf iguration Subme nu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configurat.
Using the Setup Program 57 Table 14. Peripher al Configuration Submenu (continued) Feature Options Description Base I/O address (This feature is dis played only if Parallel Port is s et to Enabled. ) • 378 (default) • 278 Specifies the bas e I/O address for the parallel port.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 58 IDE Configurat ion Submenu Maintenance Main Advanced Security Power Boot Exit PCI Configuration Boot Configuration Peripheral Configuration IDE C.
Using the Setup Program 59 Primary/Secondary IDE Master/Slave Submenus Maintenance Main Advanced Security Power Boot Exit Boot Configuration Peripheral Configuration IDE Configuration ➜ Primary IDE .
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 60 Table 16. Primary/Secondary IDE Master/Slave Submenus (continued) Feature Options Description Ultra DMA • Disabled (default) • Mode 0 • Mode 1 • Mode 2 • Mode 3 • Mode 4 • Mode 5 Specifies the Ultra DM A mode for the drive.
Using the Setup Program 61 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 The submenu shown in Table 18 is used to configure the event logging features.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 62 Video 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 The submenu shown in Table 19 is used to configure video features.
Using the Setup Program 63 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 was entered pr eviously: Feature Options Description Supervisor Pass word Is No options Reports if there is a s upervisor pas sword set.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 64 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 M enu Feature Options Description Power Management • Disabled • Enabled (default) Enables or disables the BIOS power managem ent feature.
Using the Setup Program 65 Boot Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 22 is used to set the boot features and the boot sequence. Table 22. Boot Menu Feature Options Description Quiet Boot • Disabled • Enabled (default) Disabled display s normal PO ST mess ages.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 66 Table 22. Boot Menu (continued) Feature Options Description IDE Drive Configuration [Enter] Configures IDE driv es. When select ed, displays the ID E Drive Configuration s ubmenu. Notes: 1. A RMD-FDD = ATAP I removable dev ice - fl oppy disk drive 2.
Using the Setup Program 67 Exit Menu Maintenance Main Advanced Security Power Boot Exit The menu shown in Table 24 is used to exit the BIOS Setup program, saving changes, and loading and saving defaults. Table 24. Exit Menu Feature Description Exit Saving Changes Exits and saves the changes in C MOS SRAM .
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 68.
69 5 T echnical Reference Board Connectors The board ’ s connectors can be divided into three groups, as shown in Figure 21. OM10663 B C A A B C Back panel c onnectors (see page 70) Midboard connec tors (see page 71) Front panel connectors (see page 74 ) Figure 21.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 70 Back Panel Connectors Figure 22 shows the back panel connectors on the board. OM10658 B A F H J I G E C D Item Description Color A PS/2 mouse por.
Technical Reference 71 ✏ 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 if passive (non-amplified) speakers are connected to this output.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 72 Power and Hardware Connectors Figure 24 shows the power and hardware connectors. OM10752 A 1 B F G D C H 1 1 1 1 11 10 20 1 4 21 3 E Item Descrip.
Technical Reference 73 Add-In Board and Peripheral Interface Connectors Figure 25 shows the add-in board and peripheral interface connectors. OM10664 1 2 33 34 H 1 24 0 39 1 24 0 39 I J C D E G A B F .
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 74 Front Pane l Connect ors Figure 26 shows the location of the front panel connectors. OM10665 B A 1 10 7 2 1 15 2 1 16 1 D C Item Description A B C D SCSI LED Front panel USB Auxiliary front panel power LED Front panel Figure 26.
Technical Reference 75 Desktop Board Resources Memory Map Table 25. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 524288 K 100000 - 1FFFFFFF 511 MB Extended M.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 76 I/O Map Table 27. I/O Map Address (hex) Siz e Description 0000 - 000F 16 bytes DMA c ontroller 0020 - 0021 2 bytes Programmable Interrupt Control.
Technical Reference 77 Table 27. I/O Map (continued) Address (hex) Siz e Description 0377, bits 6:0 7 bits Sec ondary IDE channel s tatus port 0378 - 037F 8 bytes LPT 1 0388 - 038B 6 bytes AdLib † (.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 78 Interrup ts Table 28. Interrupts IRQ System Resource NMI I/O channel check 0 Reserved, interval tim er 1 Reserved, key board buffer full 2 Reserv.
79 A Error Messages and Indicators The D850GB/D850GBAL board reports POST errors in three ways: • By sounding a beep code • By lighting the enhanced diagnostic LEDs • By displaying an error message on the monitor BIOS B eep Code s The BIOS beep codes are listed in Table 29.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 80 Enhanced Diagnostic LEDs Four dual-colored enhanced diagnostic LEDs are located on the back panel (see Figure 27). If the BIOS hangs during the POST, the state of the LEDs indicates which BIOS operation was in progress when the BIOS hung.
Error Messages and Indicator s 81 Table 30. Enhanced Diagnostic LE D States Display BIOS Operation Display BIOS Oper ation Amber Amber Amber Amber Power on, starting BIOS Amber Amber Amber Green Reserved Green Amber Amber Amber Recove ry mode Green Amber Amber Green Reserved Amber Green Amber Amber Processor, c ache, etc.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 82 BIOS Error Messages When a recoverable error occurs during the POST, the BIOS displays an error message describing the problem. Table 31. BIOS Error Messages Error Message Explanation GA20 Error An error occurred with G ate-A20 when switc hing to protected mode during the memory test.
Error Messages and Indicator s 83 Table 31. 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 may be bad. Memory Siz e Increased Memory size has inc reased s ince the last boot.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 84.
85 B Regulatory and Integration Information This appendix contains: • Safety standards, electromagnetic compatibility regulations, and product certification markings for this desktop board • Instr.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 86 Product Certification Marki ngs This printed circuit assembly has the following product certification markings: • UL Joint Recognition mark: Co.
Regulatory and Integration Information 87 Installation In structions CAUTION Follow these guidelines to meet safety and regulatory requirements w hen installing this board assembly. Read and adhere to all of these instructions and the instructions supplied with the chassis and associated modules.
Intel Desktop Board D850GB /D850GBAL Pr oduct Guide 88 In the Unit ed States A certification mark by a Nationally Recognized Testing Laboratory (NRTL) such as UL, CSA, or ETL signifies compl iance with safet y requirement s. External wir ing must be UL Listed and suitable for the intended use.
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