Intel D850GB manual

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. Operation is subject to the following two[...]

iii Contents 1 Desktop Board Features Featu re Su mmary ................................................................................................................ 7 Components ..................................................................................................................... .... 9 Proce ssor ................................[...]

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 ..................................................................................31 Removi ng a Proce ssor .............................[...]

Contents v Powe r and Hardw are Connectors ......................................................................72 Add-In Board and Pe ripheral Interface Connectors ............................................73 Front Panel C onnectors ..............................................................................................74 Desktop Boa rd R[...]

Intel Desktop Board D850GB /D850GBAL Pr oduct Guide vi 23. Audio C onnectors .........................................................................................................71 24 . Powe r and Hardw are Control C onnectors .....................................................................72 25. Add-in B oard and Peripheral Interface Conn[...]

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 • 400 MHz system dat a bu s Memory • Four 168-pin Direct Ram bus † RIMM † sockets • Support from 128 MB to a max imum 2 GB of system me mory C[...]

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. Secondary IDE connec tor C. Legacy CD -ROM c onnector (D850GBAL only )[...]

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. See the processor’s data sheet for current usage r[...]

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. The board supports the following memory features: • Maximum of 32 DRAM devices per channel • 128 MB (minimum) to 2 GB (maximum) onboard capacity utilizing 256 Mbit or 512 Mbit technology • Sin[...]

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 • Intel 82801BA I /O Control ler Hub ( ICH2) with AHA bus • Firmware Hub (FWH ) Intel ® 82850 Memory Con troller Hu b (MCH) The MCH has these features: ?[...]

Desktop Board Features 13 Input/Output (I/O) Controller The SMSC LPC47M102 ultra I/O controller features the following: • Low pin count (LPC) interface • 3.3 V operation • One serial port • One parallel port with E xtended Capabilities Port (EC P) and Enhanced Parallel Po rt (EPP) support • Serial IRQ interface compatible with serialized [...]

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. To attach more than two devices, connect an external hub to either of the built-in ports. The boa[...]

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. The AGP connector supports AGP 4X and 2X[...]

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. You do not need to run the BIOS Setup program after you instal[...]

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. Table 2 describes the LED states when the board is powered up and the LAN s[...]

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 Power Interface (ACPI)  Advanced Power Management (APM) • Hardware support:  Power connector  Fan connectors  Wake on LAN technology  Ins[...]

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. Loca tion of Standby Power Indicator CAUTION If the standby current necessary to support multiple wake events from the PC I and/or USB buses exceeds power supply capacity, the board [...]

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. Table 3. Standby Current Requir eme[...]

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 board • Install the processor retention mechanism and board in the chassis • Install a processor • Install and remove memory • Replace the batt[...]

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. The AGP card retention mechan[...]

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. Follow the steps outlined below to attach the RM (A) to the A[...]

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. 3. Secure the card ’ s metal bra[...]

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). 2. Spread the sides of the retention mechanism (C) and lift the retent[...]

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. Install the I/O shield before installing th[...]

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. Do not install screws around the processor socket at this time.[...]

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. Location of the Processor RM Mounting Holes[...]

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. OM10632 Figure 11. Inst alling the Processo r RM[...]

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). Failure to do so could damage the processor and th[...]

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. OM10642 Figure 13. App lying Thermal G rease to the Pro cessor Surface 2. Place the s[...]

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. Repeat this procedure on the opposite side of the heatsink (see Figure 15). OM10643 A B B F[...]

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. Observe the precautions in “ Before You Begin ” (s[...]

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. The standby power indicator LED should not be lit (see Figure 2 on page 19) for the location of the standby power indicat[...]

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. 3. Make sure the clips at either end of the [...]

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. The battery should last about seven years. When the battery begins to die, it loses volta[...]

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. Entsorgen Sie verbrauchte Batterien den Anweisungen des Herstellers entsprechend. AVVERTIMENTO [...]

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. Figure[...]

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. Moving the jumper with the power on may result in unre[...]

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. Table 4. Jumper Set tings fo r the BIOS Setup Program Modes (J8C2) Function / Mode Ju[...]

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. Select Yes and press <Enter>. Setup displays the maintena[...]

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. Upda ting the B IOS with the Intel ® Express BIOS Update Utility With the Intel Express BIOS Update utility you can update the system [...]

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. The BIOS update file contains: • New BIOS fi les • BIOS recovery fi[...]

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. The computer is unable to recover a BIOS from an LS-120 diskette. To create a bootable diskette using a DOS system: • Place an unformatted diskette in the diskette drive and format [...]

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. You will be asked to reboot the system w hen the upd[...]

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. In about a minute, two beeps are heard and drive A activity ceases (temporarily) indicating the[...]

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. ✏ NOTE For reference purposes, you should write down the curre[...]

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 Description < ← > or < → > Selects a different m enu screen < ↑ > or < ↓ > Moves cursor up or down <Tab> Moves c ursor to[...]

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. Table 9. Extende d Configuration Sub[...]

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. Table 10. Main Menu Feature Options Description BIOS Version No options Displays the versio[...]

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. Table 11. Advanced Menu Feature Options Description Extended Configuration No options If Used is highlighted, User-Defined has been selec[...]

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 Configuration Diskette Configuration Event Log Configuration Video Configuration The submenu shown in Table 12 is used to configure the IRQ priority of[...]

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 Configuration Event Log Configuration Video Configuration The submenu shown in Table 13 is used to set the Plug & Play options, reset configuration dat[...]

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 Configuration IDE Configuration Diskette Configuration Event Log Configuration Video Configuration This submenu shown in Table 14 is used to enable onboard devi[...]

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. Interrupt (This feature is dis played only if Parallel Port is s et t[...]

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 Configuration Diskette Configuration Event Log Configuration Video Configuration This submenu shown in Table 15 is used to configure IDE device options[...]

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 Master Diskette Configuration Primary IDE Slave Event Log Configuration Secondary IDE Master Video Configuration Secondary IDE Slave There are four ID[...]

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. Cable Detected None Displays the type of cable c onnected[...]

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. Table 18. Eve[...]

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. T[...]

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. User Pa[...]

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. Inacti[...]

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. Enabled displays OEM graphic instead of PO[...]

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. A RMD-HDD = ATAP I removabl e device - hard [...]

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 . Exit Disc arding Changes Exits w ithout sa[...]

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. Conne ctor Groups CAUTION Many of the midboard and front panel connectors provide [...]

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 port Green B PS/2 keyboard port Purple C USB port 0 Black D USB port 1 Black E Parallel port Burgundy F Serial port Teal G RJ-45 Black H Audio line in Li[...]

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. Midboard Connec tors Audio Connectors (D850GB AL only) Figure 23 shows the location of the audio connecto[...]

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 Description Item Description A A TX 12 V power connector E Auxiliary pow er B P rocessor v oltage regulator fan F Main power C RIM M fan G Wake on LAN techno[...]

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 Item Description Item Description A CNR (D850GB only) F PCI slot 1 B PCI slot 5 G AGP slot C PCI slot 4 H Diskette driv e D PCI slot 3 I Secondary IDE[...]

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. Fr ont Panel Connector s[...]

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 Memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS 896 K - 960 K E0000 - EFFFF 64 KB Reserved 800 K - 896 K C8000 - DFFFF 96 KB Available high DOS [...]

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 (PIC ) 0040 - 0043 4 bytes System timer 0060 1 byte Keyboard controller byte — res et IRQ 0061 1 byte System speaker 0064 1 byte Keyboard controlle[...]

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 † (FM synthes izer) 03CC 1 byte Video (VGA) 03CE - 03CF 2 bytes Video (VGA) 03D4 - 03D5 2 bytes Video (VGA) 03DA 1 byte Video (VGA) 03E8 - 03EF 8 bytes C[...]

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 Reserved, cas cade interrupt from s lave PIC 3 COM2* (user av ailable if COM 2 is not present) 4C O M 1 * 5 LPT2 (Plug and Play option) / audio / user avail[...]

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. The BIOS also issues a beep code (one long tone followed by two short[...]

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. Table 30 lists the valid states of the LEDs. OM10641 1 4[...]

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. Amber Green Amber Green Re[...]

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. Pri Maste[...]

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. If no mem ory was added, there may be a problem with[...]

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 • Instructions and precautions for integrators who are installing this board in a chassis Regulatory Compliance This board complies with the following safety[...]

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: Consists of small c followed by a stylized backward UR and followed by a small US (component side) • Manufacturer ’ s recognition mark: Consists of [...]

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. If the instructions for the chassis are inconsistent[...]

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. Internal wiring must be UL Listed or Recognized and rat[...]