Intel® Desktop Board D910GLDW Technical Product Specification October 2004 Order Number: C88966-002 The Intel® Desktop Board D910GLDW may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current characterized errata are documented in the Intel Desktop Board D910GLDW Specification Update.
Revision History Revision Revision History Date Intel® -001 First release of the Specification. Desktop Board D910GLDW Technical Product September 2004 -002 Second release of the Intel® Desktop Board D910GLDW Technical Product October 2004 Specification. This product specification applies to only standard Intel® Desktop Board D910GLDW with BIOS identifier WB91X10J.86A.
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for the Intel® Desktop Board D910GLDW. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D910GLDW and their components to the vendors, system integrators, and other engineers and technicians who need this level of information.
Intel Desktop Board D910GLDW Technical Product Specification Other Common Notation iv # Used after a signal name to identify an active-low signal (such as USBP0#) (NxnX) When used in the description of a component, N indicates component type, xn are the relative coordinates of its location on the Desktop Board D910GLDW, and X is the instance of the particular part at that general location. For example, J5J1 is a connector, located at 5J. It is the first connector in the 5J area.
Contents 1 Product Description 1.1 1.2 PCI Bus Terminology Change........................................................................................ 9 Overview ...................................................................................................................... 10 1.2.1 Feature Summary.......................................................................................... 10 1.2.2 Manufacturing Options .................................................................................
Intel Desktop Board D910GLDW Technical Product Specification 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 PCI Configuration Space Map...................................................................................... 39 Interrupts ...................................................................................................................... 40 PCI Conventional Interrupt Routing Map ..................................................................... 41 Connectors........................
Contents 4 Error Messages and Beep Codes 4.1 4.2 4.3 4.4 4.5 BIOS Error Messages .................................................................................................. 73 Port 80h POST Codes ................................................................................................. 75 Bus Initialization Checkpoints ...................................................................................... 79 Speaker .............................................................................
Intel Desktop Board D910GLDW Technical Product Specification 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. viii Front Chassis Fan and Rear Chassis Fan Connectors................................................ 46 Processor Fan Connector ............................................................................................ 46 Chassis Intrusion Connector ..........................................................................
1 Product Description What This Chapter Contains 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 PCI Bus Terminology Change........................................................................................ 9 Overview ...................................................................................................................... 10 Online Support ............................................................................................................. 15 Processor .........................
Intel Desktop Board D910GLDW Technical Product Specification 1.2 Overview 1.2.1 Feature Summary Table 1 summarizes the major features of the Desktop Board D910GLDW. Table 1. Feature Summary Form Factor microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by 243.
Product Description Table 1.
Intel Desktop Board D910GLDW Technical Product Specification 1.2.3 Board Layout Figure 1 shows the location of the major components on the Desktop Board D910GLDW. A B C D E F DD CC G BB AA Z H I J K Y L W X U V S T R Q P O N M OM17306 Figure 1. Board Components Table 3 lists the components identified in Figure 1.
Product Description Table 3.
Intel Desktop Board D910GLDW Technical Product Specification 1.2.4 Block Diagram Figure 2 is a block diagram of the major functional areas of the board.
Product Description 1.3 Online Support To find information about… Visit this World Wide Web site: Intel Desktop Board D910GLDW under “Desktop Board Products” or “Desktop Board Support” http://www.intel.com/design/motherbd http://support.intel.com/support/motherboards/desktop Available configurations for the Desktop Board D910GLDW http://developer.intel.com/design/motherbd/dw/dw_available.htm Processor data sheets http://www.intel.com/design/litcentr ICH6 addressing http://developer.intel.
Intel Desktop Board D910GLDW Technical Product Specification NOTE To be fully compliant with all applicable DDR SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. This allows the BIOS to read the SPD data and program the chipset to accurately configure memory settings for optimum performance.
Product Description 1.5.1 Memory Configurations The Intel 82910GL GMCH supports two types of memory organization: • • Dual channel (Interleaved) mode. This mode offers the highest throughput for real world applications. Dual channel mode is enabled when the installed memory capacities of both DIMM channels are equal. Technology and device width can vary from one channel to the other but the installed memory capacity for each channel must be equal.
Intel Desktop Board D910GLDW Technical Product Specification 1.5.1.1 Dual Channel (Interleaved) Mode Configuration Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM sockets of both channels are populated with identical DIMMs. 1 GB Channel A, DIMM 0 1 GB Channel B, DIMM 0 OM17309 Figure 4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs 1.5.1.
Product Description 1.6 Intel® 910GL Chipset The Intel 910GL chipset consists of the following devices: • • • Intel 82910GL Graphics Memory Controller Hub (GMCH) with Direct Media Interface (DMI) interconnect Intel 82801FB I/O Controller Hub (ICH6) with DMI interconnect Firmware Hub (FWH) The GMCH is a centralized controller for the system bus, the memory bus, the PCI Express bus, and the DMI interconnect. The ICH6 is a centralized controller for the board’s I/O paths.
Intel Desktop Board D910GLDW Technical Product Specification 1.6.1.1 Dynamic Video Memory Technology (DVMT) DVMT enables enhanced graphics and memory performance through Direct AGP, and highly efficient memory utilization. DVMT ensures the most efficient use of available system memory for maximum 2-D/3-D graphics performance. Up to 224 MB of system memory can be allocated to DVMT on systems that have 512 MB or more of total system memory installed.
Product Description 1.6.3.1 Parallel ATE IDE Interface The ICH6’s Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The Parallel ATA IDE interface supports the following modes: • • • • • Programmed I/O (PIO): processor controls data transfer. 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/sec. Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer rates of up to 33 MB/sec.
Intel Desktop Board D910GLDW Technical Product Specification NOTE Many Serial ATA drives use new low-voltage power connectors and require adaptors or power supplies equipped with low-voltage power connectors. For more information, see: http://www.serialata.org/ For information about Refer to The location of the Serial ATA IDE connectors Figure 12, page 44 1.6.4 Real-Time Clock, CMOS SRAM, and Battery A coin-cell battery (CR2032) powers the real-time clock and CMOS memory.
Product Description 1.8 I/O Controller The I/O controller provides the following features: • • • • • • • One serial port One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port (EPP) support Serial IRQ interface compatible with serialized IRQ support for PCI Conventional bus systems PS/2-style mouse and keyboard interfaces Interface for one 1.44 MB or 2.
Intel Desktop Board D910GLDW Technical Product Specification 1.9 Audio Subsystem The board supports the Intel High Definition audio subsystem based on the Realtek ALC860 codec. The audio subsystem supports the following features: • • • # Advanced jack sense (front and rear panel) that enables the audio codec to recognize the device that is connected to an audio port.
Product Description Intel® High Definition Audio Subsystem 1.9.3 The Intel High Definition Audio subsystem includes the following: • • • Intel 82801FB I/O Controller Hub (ICH6) Realtek ALC860 audio codec Microphone input that supports a single dynamic, condenser, or electret microphone The front and back audio connectors are configurable through the audio device drivers. The available configurable audio ports are shown in Figure 6.
Intel Desktop Board D910GLDW Technical Product Specification 1.
Product Description 1.10.
Intel Desktop Board D910GLDW Technical Product Specification 1.11 Hardware Management Subsystem The hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. The Desktop Board has several hardware management features, including the following: • • • 1.11.
Product Description 1.11.2 Thermal Monitoring Figure 9 shows the location of the sensors and fan connectors. 3 1 A 4 1 C B D 1 3 F E OM17312 Item Description A Thermal diode, located on processor die B Remote ambient temperature sensor C Ambient temperature sensor, internal to hardware monitoring and fan control ASIC D Processor fan E Rear chassis fan F Front chassis fan Figure 9.
Intel Desktop Board D910GLDW Technical Product Specification 1.11.3 Fan Monitoring Fan monitoring can be implemented using Intel® Desktop Utilities, LANDesk* software, or thirdparty software. The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board. For information about Refer to The functions of the fan connectors Section 1.12.2.2, page 34 1.11.
Product Description 1.12.1 ACPI ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with this board requires an operating system that provides full ACPI support.
Intel Desktop Board D910GLDW Technical Product Specification 1.12.1.1 System States and Power States Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off.
Product Description 1.12.1.2 Wake-up Devices and Events Table 8 lists the devices or specific events that can wake the computer from specific states. Table 8.
Intel Desktop Board D910GLDW Technical Product Specification Resume on Ring enables telephony devices to access the computer when it is in a power-managed state. The method used depends on the type of telephony device (external or internal). NOTE The use of Resume on Ring and Wake from USB technologies from an ACPI state requires an operating system that provides full ACPI support. 1.12.2.1 Power Connector ATX12V-compliant power supplies can turn off the system power through system control.
Product Description LAN wake capabilities enable remote wake-up of the computer through a network. The LAN network adapter monitors network traffic at the Media Independent Interface. Upon detecting a Magic Packet* frame, the LAN subsystem asserts a wake-up signal that powers up the computer. Depending on the LAN implementation, the board supports LAN wake capabilities with ACPI in the following ways: • • • The PCI Express WAKE# signal The PCI Conventional bus PME# signal for PCI 2.
Intel Desktop Board D910GLDW Technical Product Specification 1.12.2.8 PME# Signal Wake-up Support When the PME# signal on the PCI Conventional bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state (with Wake on PME enabled in BIOS). 1.12.2.9 WAKE# Signal Wake-up Support When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from an ACPI S1, S3, S4, or S5 state. 1.12.2.
2 Technical Reference What This Chapter Contains 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 Introduction .................................................................................................................. 37 Memory Map ................................................................................................................ 37 Fixed I/O Map...............................................................................................................
Intel Desktop Board D910GLDW Technical Product Specification 2.3 Fixed I/O Map Table 10. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes 0170 - 0177 01F0 - 01F7 8 bytes 8 bytes Used by the Desktop Board D910GLDW. Refer to the ICH6 data sheet for dynamic addressing information.
Technical Reference 2.4 DMA Channels Table 11. DMA Channels DMA Channel Number Data Width System Resource 0 8 or 16 bits Open 1 8 or 16 bits Parallel port 2 8 or 16 bits Diskette drive 3 8 or 16 bits Parallel port (for ECP or EPP) 4 8 or 16 bits DMA controller 5 16 bits Open 6 16 bits Open 7 16 bits Open 2.5 PCI Configuration Space Map Table 12.
Intel Desktop Board D910GLDW Technical Product Specification 2.6 Interrupts The interrupts can be routed through either the Programmable Interrupt Controller (PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the ICH6 component. The PIC is supported in Windows 98 SE and Windows ME and uses the first 16 interrupts. The APIC is supported in Windows 2000 and Windows XP and supports a total of 24 interrupts. Table 13.
Technical Reference 2.7 PCI Conventional Interrupt Routing Map This section describes interrupt sharing and how the interrupt signals are connected between the PCI Conventional bus connectors and onboard PCI Conventional devices. The PCI Conventional specification describes how interrupts can be shared between devices attached to the PCI Conventional bus. In most cases, the small amount of latency added by interrupt sharing does not affect the operation or throughput of the devices.
Intel Desktop Board D910GLDW Technical Product Specification 2.8 Connectors CAUTION Only the following connectors have overcurrent protection: back panel USB, front panel USB, and PS/2. The other internal connectors are not overcurrent protected and should connect only to devices inside the computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power devices external to the computer’s chassis.
Technical Reference NOTE The back panel audio line out connector is designed to power headphones or amplified speakers only. Poor audio quality occurs if passive (non-amplified) speakers are connected to this output. Table 15.
Intel Desktop Board D910GLDW Technical Product Specification 2.8.2 Component-side Connectors Figure 12 shows the locations of the component-side connectors. A C E B 1 2 9 10 F D 4 3 1 3 1 V 2 1 1 1 1 1 10 9 2 1 1 10 1 U 2 2 3 1 1 10 4 1 T 1 G 2 10 1 S 24 R 2 23 40 2 2 1 34 1 33 39 1 Q O P M N K J I H L OM17315 Figure 12. Component-side Connectors Table 16 lists the component-side connectors identified in Figure 12.
Technical Reference Table 16.
Intel Desktop Board D910GLDW Technical Product Specification Table 17.
Technical Reference 2.8.2.1 Power Supply Connectors The board has two power supply connectors: • • Main power – a 2 x 12 connector. This connector is compatible with 2 x 10 connectors previously used on Intel Desktop boards. The board supports the use of ATX12V power supplies with either 2 x 10 or 2 x 12 main power cables. When using a power supply with a 2 x 10 main power cable, attach that cable on the rightmost pins of the main power connector, leaving pins 11, 12, 23, and 24 unconnected.
Intel Desktop Board D910GLDW Technical Product Specification 2.8.2.2 Add-in Card Connectors The board has the following add-in card connectors: • • One PCI Express x1 connector. The x1 interface support simultaneous transfer speeds up to 500 MBytes/sec Two PCI Conventional rev 2.2 compliant local bus slots. The SMBus is routed to PCI Conventional bus connector 2 only (ATX expansion slot 6).
Technical Reference N/C Single-colored Power LED + − − + 7 6 5 4 3 2 1 Purple Red 8 Yellow Dual-colored Power LED Green Power Switch +5 V DC 9 Reset Switch − + Hard Drive Activity LED OM17000 Figure 13. Connection Diagram for Front Panel Connector 2.8.2.4.1 Hard Drive Activity LED Connector [Yellow] Pins 1 and 3 [Yellow] can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive.
Intel Desktop Board D910GLDW Technical Product Specification NOTE The colors listed in Table 26 and Table 27 are suggested colors only. Actual LED colors are product- or customer-specific. 2.8.2.4.4 Power Switch Connector [Red] Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power switch. The switch must pull the SW_ON# pin to ground for at least 50 ms to signal the power supply to switch on or off. (The time requirement is due to internal debounce circuitry on the board.
Technical Reference 2.8.2.6 Front Panel IEEE 1394a Connectors (Optional) Figure 15 is a connection diagram for the optional IEEE 1394a connector. TPA+ 1 2 TPA− Ground 3 4 Ground TPB+ 5 6 TPB− 7 8 +12 V DC 10 Ground +12 V DC Key (no pin) OM16107 Figure 15. Connection Diagram for IEEE 1394a Connector # INTEGRATOR’S NOTES • • The +12 V DC power on the IEEE 1394a connectors is fused. The IEEE 1394a connector provides one IEEE 1394a port.
Intel Desktop Board D910GLDW Technical Product Specification 2.9 Jumper Block CAUTION Do not move the jumper with the power on. Always turn off the power and unplug the power cord from the computer before changing a jumper setting. Otherwise, the board could be damaged. Figure 16 shows the location of the jumper block. The 3-pin jumper block determines the BIOS Setup program’s mode. Table 28 describes the jumper settings for the three modes: normal, configure, and recovery.
Technical Reference 2.10 Mechanical Considerations 2.10.1 Form Factor The board is designed to fit into either a microATX or an ATX-form-factor chassis. Figure 17 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters]. Location of the I/O connectors and mounting holes are in compliance with the ATX specification. 1.800 [45.72] 6.500 [165.10] 6.100 [154.94] 5.
Intel Desktop Board D910GLDW Technical Product Specification 2.10.2 I/O Shield The back panel I/O shield for the board must meet specific dimension and material requirements. Systems based on this board needs the back panel I/O shield to pass certification testing. Figure 18 shows the I/O shield. Dimensions are given in inches to a tolerance of ±0.02 inches. The figure also indicates the position of each cutout.
Technical Reference 2.11 Electrical Considerations 2.11.1 DC Loading Table 29 lists the DC loading characteristics of the board. This data is based on a DC analysis of all active components within the board that impact its power delivery subsystems. The analysis does not include PCI add-in cards. Minimum values assume a light load placed on the board that is similar to an environment with no applications running and no USB current draw.
Intel Desktop Board D910GLDW Technical Product Specification 2.11.4 Power Supply Considerations CAUTION The +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. System integrators should refer to the power usage values listed in Table 29 when selecting a power supply for use with the board.
Technical Reference 2.12 Thermal Considerations CAUTION A chassis with a maximum internal ambient temperature of 38 oC at the processor fan inlet is a requirement. Use a processor heatsink that provides omni-directional airflow (as shown in Figure 19) to maintain required airflow across the processor voltage regulator area. OM16996 Figure 19.
Intel Desktop Board D910GLDW Technical Product Specification CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit. Failure to do so may result in damage to the voltage regulator circuit. The processor voltage regulator area (item A in Figure 20) can reach a temperature of up to 85 oC in an open chassis. Figure 20 shows the locations of the localized high temperature zones.
Technical Reference Table 31 provides maximum case temperatures for the Desktop Board D910GLDW components that are sensitive to thermal changes. The operating temperature, current load, or operating frequency could affect case temperatures. Maximum case temperatures are important when considering proper airflow to cool the Desktop Board D910GLDW. Table 31.
Intel Desktop Board D910GLDW Technical Product Specification 2.14 Environmental Table 32 lists the environmental specifications for the board. Table 32.
Technical Reference 2.15 Regulatory Compliance This section describes the Desktop Board’s compliance with U.S. and international safety and electromagnetic compatibility (EMC) regulations. 2.15.1 Safety Regulations Table 33 lists the safety regulations the Desktop Board D910GLDW complies with when correctly installed in a compatible host system. Table 33.
Intel Desktop Board D910GLDW Technical Product Specification 2.15.2.1 FCC Compliance Statement (USA) Product Type: D910GLDW Desktop Board This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Technical Reference Suomi Tämä tuote noudattaa EU-direktiivin 89/336/EEC & 73/23/EEC määräyksiä. Français Ce produit est conforme aux exigences de la Directive Européenne 89/336/EEC & 73/23/EEC. Deutsch Dieses Produkt entspricht den Bestimmungen der Europäischen Richtlinie 89/336/EEC & 73/23/EEC. Icelandic Þessi vara stenst reglugerð Evrópska Efnahags Bandalagsins númer 89/336/ EEC & 73/23/EEC. Italiano Questo prodotto è conforme alla Direttiva Europea 89/336/EEC & 73/23/EEC.
Intel Desktop Board D910GLDW Technical Product Specification 2.15.5 Product Certification Markings (Board Level) Table 35 lists the board’s product certification markings. Table 35. Product Certification Markings Description Marking UL joint US/Canada Recognized Component mark. Includes adjacent UL file number for Intel Desktop Boards: E210882 (component side). FCC Declaration of Conformity logo mark for Class B equipment; includes Intel name and D910GLDW model designation (component side). CE mark.
3 Overview of BIOS Features What This Chapter Contains 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 Introduction .................................................................................................................. 65 BIOS Flash Memory Organization ............................................................................... 66 Resource Configuration ............................................................................................... 66 System Management BIOS (SMBIOS) .....................
Intel Desktop Board D910GLDW Technical Product Specification Table 36 lists the BIOS Setup program menu features. Table 36.
Overview of BIOS Features to PIO Mode 3 or 4, depending on the capability of the drive. You can override the autoconfiguration options by specifying manual configuration in the BIOS Setup program. To use ATA-66/100 features the following items are required: • • • An ATA-66/100 peripheral device An ATA-66/100 compatible cable ATA-66/100 operating system device drivers NOTE Do not connect an ATA device as a slave on the same IDE cable as an ATAPI master device.
Intel Desktop Board D910GLDW Technical Product Specification 5. The operating system loads. While the operating system is loading, USB keyboards and mice are recognized and may be used to configure the operating system. (Keyboards and mice are not recognized during this period if Legacy USB support was set to Disabled in the BIOS Setup program.) 6.
Overview of BIOS Features 3.7 Boot Options In the BIOS Setup program, the user can choose to boot from a diskette drive, hard drives, CD-ROM, or the network. The default setting is for the diskette drive to be the first boot device, the hard drive second, and the ATAPI CD-ROM third. The fourth device is disabled. 3.7.1 CD-ROM Boot Booting from CD-ROM is supported in compliance to the El Torito bootable CD-ROM format specification.
Intel Desktop Board D910GLDW Technical Product Specification 3.8 Fast Booting Systems with Intel® Rapid BIOS Boot These factors affect system boot speed: • • 3.8.1 Selecting and configuring peripherals properly Using an optimized BIOS, such as the Intel Rapid BIOS Peripheral Selection and Configuration The following techniques help improve system boot speed: • • • • 3.8.
Overview of BIOS Features 3.9 BIOS Security Features The BIOS includes security features that restrict access to the BIOS Setup program and who can boot the computer. A supervisor password and a user password can be set for the BIOS Setup program and for booting the computer, with the following restrictions: • • • • • • • The supervisor password gives unrestricted access to view and change all the Setup options in the BIOS Setup program. This is the supervisor mode.
Intel Desktop Board D910GLDW Technical Product Specification 72
4 Error Messages and Beep Codes What This Chapter Contains 4.1 4.2 4.3 4.4 4.5 BIOS Error Messages .................................................................................................. 73 Port 80h POST Codes ................................................................................................. 75 Bus Initialization Checkpoints ...................................................................................... 79 Speaker ............................................................
Intel Desktop Board D910GLDW Technical Product Specification Table 40. BIOS Error Messages (continued) Error Message Explanation Update OK! NVRAM was invalid and has been updated. Updated Failed NVRAM was invalid but was unable to be updated. Keyboard Error Error in the keyboard connection. Make sure keyboard is connected properly. KB/Interface Error Keyboard interface test failed. Memory Size Decreased Memory size has decreased since the last boot.
Error Messages and Beep Codes 4.2 Port 80h POST Codes During the POST, the BIOS generates diagnostic progress codes (POST-codes) to I/O port 80h. If the POST fails, execution stops and the last POST code generated is left at port 80h. This code is useful for determining the point where an error occurred. Displaying the POST-codes requires a PCI bus add-in card, often called a POST card. The POST card can decode the port and display the contents on a medium such as a seven-segment display.
Intel Desktop Board D910GLDW Technical Product Specification Table 43. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation 03 NMI is Disabled. To check soft reset/power-on. 05 BIOS stack set. Going to disable cache if any. 06 POST code to be uncompressed. 07 CPU init and CPU data area init to be done. 08 CMOS checksum calculation to be done next. 0B Any initialization before keyboard BAT to be done next. 0C KB controller I/B free.
Error Messages and Beep Codes Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 40 To prepare the descriptor tables. 42 To enter in virtual mode for memory test. 43 To enable interrupts for diagnostics mode. 44 To initialize data to check memory wrap around at 0:0. 45 Data initialized. Going to check for memory wrap around at 0:0 and finding the total system memory size. 46 Memory wrap around test done. Memory size calculation over.
Intel Desktop Board D910GLDW Technical Product Specification Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation 84 Lock-key checking over. To check for memory size mismatch with CMOS. 85 Memory size check done. To display soft error and check for password or bypass setup. 86 Password checked. About to do programming before setup. 87 Programming before setup complete. To uncompress SETUP code and execute CMOS setup.
Error Messages and Beep Codes Table 43. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation AE Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. B1 Going to copy any code to specific area. 00 Copying of code to specific area done. Going to give control to INT-19 boot loader. 4.3 Bus Initialization Checkpoints The system BIOS gives control to the different buses at several checkpoints to do various tasks.
Intel Desktop Board D910GLDW Technical Product Specification Table 46 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 46. Lower Nibble High Byte Functions Value Description 0 Generic DIM (Device Initialization Manager) 1 On-board System devices 2 ISA devices 3 EISA devices 4 ISA PnP devices 5 PCI devices 4.4 Speaker A 47 Ω inductive speaker is mounted on the board.
