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Intel
D915GMH
Technical Product Specification
®
The Intel
Desktop Board D915GMH 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 D915GMH Specification Update.
®
Desktop Board
December 2004
Order Number: C81296-001
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Table of Contents
Related Manuals for Intel BLKD915GMHLK - LGA775 800FSB Dual DDR400 GIG Lan PCI Express mBTX 10
Summary of Contents for Intel BLKD915GMHLK - LGA775 800FSB Dual DDR400 GIG Lan PCI Express mBTX 10
- Page 1 Order Number: C81296-001 ® The Intel Desktop Board D915GMH 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 D915GMH Specification Update.
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Page 2: Revision History
Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your product order. Copies of documents which have an ordering number and are referenced in this document, or other Intel literature, may be obtained from: Intel Corporation P.O. -
Page 3: Intended Audience
Preface This Technical Product Specification (TPS) specifies the board layout, components, connectors, ® power and environmental requirements, and the BIOS for the Intel Desktop Board D915GMH. It describes the standard product and available manufacturing options. Intended Audience The TPS is intended to provide detailed, technical information about the Desktop Board D915GMH and their components to the vendors, system integrators, and other engineers and technicians who need this level of information. - Page 4 Intel Desktop Board D915GMH Technical Product Specification Other Common Notation 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 D915GMH, and X is the instance of the particular part at that general location.
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Page 5: Table Of Contents
System Memory ......................18 1.6.1 Memory Configurations ................. 20 ® Intel 915G Chipset ..................... 24 1.7.1 Intel 915G Graphics Subsystem..............24 1.7.2 USB ....................... 26 1.7.3 IDE Support ....................26 1.7.4 Real-Time Clock, CMOS SRAM, and Battery..........28 PCI Express Connectors....................28 I/O Controller........................ - Page 6 Intel Desktop Board D915GMH Technical Product Specification 1.14.3 Security Precautions..................47 1.14.4 Trusted Platform Module Ownership ............. 48 1.14.5 Enabling the Trusted Platform Module ............49 1.14.6 Assuming Trusted Platform Module Ownership ..........49 1.14.7 Recovery Procedures ..................50 1.14.8 Clearing Trusted Platform Module Ownership..........
- Page 7 Rapid BIOS Boot ............ 90 3.8.1 Peripheral Selection and Configuration ............90 3.8.2 Intel Rapid BIOS Boot ................... 90 BIOS Security Features ....................91 4 Error Messages and Beep Codes BIOS Error Messages ....................93 Port 80h POST Codes ....................95 Bus Initialization Checkpoints ..................
- Page 8 Intel Desktop Board D915GMH Technical Product Specification I/O Shield Dimensions for Boards with the 6-channel (5.1) Audio Subsystem .... 75 Localized High Temperature Zones ................78 Tables Feature Summary ......................12 Manufacturing Options ....................13 Board Components Shown in Figure 1 ................ 15 Supported System Bus Frequency and Memory Speed Combinations .......
- Page 9 Contents Boot Device Menu Options ..................89 Supervisor and User Password Functions ..............91 BIOS Error Messages ....................93 Uncompressed INIT Code Checkpoints............... 95 Boot Block Recovery Code Checkpoints ..............95 Runtime Code Uncompressed in F000 Shadow RAM ..........96 Bus Initialization Checkpoints ..................
- Page 10 Intel Desktop Board D915GMH Technical Product Specification...
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Page 11: Product Description
Desktop Boards used an add-in card connector referred to as PCI. This generation of Intel Desktop Boards adds a new technology for add-in cards: PCI Express*. The 32-bit parallel bus previously referred to as PCI is now called PCI Conventional. -
Page 12: Overview
• One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support • One diskette drive interface • PS/2* keyboard and mouse ports • Intel/AMI BIOS (resident in the 4 Mbit FWH) BIOS • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS •... -
Page 13: Manufacturing Options
1.3.2 Manufacturing Options Table 2 describes the manufacturing options on the Desktop Board D915GMH. Not every manufacturing option is available in all marketing channels. Please contact your Intel representative to determine which manufacturing options are available to you. Table 2. -
Page 14: Board Layout
Intel Desktop Board D915GMH Technical Product Specification 1.3.3 Board Layout Figure 1 shows the location of the major components on the Desktop Board D915GMH. Line In RJ45 Intel 82801 (ICH) Intel 82915G (GMCH) OM17544 Figure 1. Board Components... -
Page 15: Board Components Shown In Figure 1
Product Description Table 3 lists the components identified in Figure 1. Table 3. Board Components Shown in Figure 1 Item/Callout from Figure 1 Description Front panel audio connector Chassis intrusion connector Main power connector (2 x 12) Front Panel USB connectors PCI Express x1 connector PCI bus add-in card connectors PCI Express x16 connector... -
Page 16: Block Diagram
Intel Desktop Board D915GMH Technical Product Specification 1.3.4 Block Diagram Figure 2 is a block diagram of the major functional areas of the board. Gigabit Ethernet PCI Express x1 Interface Controller (Optional) Connector PCI Express x1 Slot 1 Back Panel/Front Panel... -
Page 17: Online Support
1.5 Processor The board is designed to support Intel Pentium 4 processors in an LGA775 processor socket with an 800 or 533 MHz system bus. See the Intel web site listed below for the most up-to-date list of supported processors. -
Page 18: System Memory
Intel Desktop Board D915GMH Technical Product Specification 1.6 System Memory The board has four DIMM sockets and support the following memory features: • 2.5 V (only) DDR SDRAM DIMMs with gold-plated contacts • Unbuffered, single-sided or double-sided DIMMs with the following restriction: Double-sided DIMMS with x16 organization are not supported. -
Page 19: Supported Memory Configurations
Product Description Table 5 lists the supported DIMM configurations. Table 5. Supported Memory Configurations DIMM SDRAM SDRAM Organization Number of SDRAM Capacity Configuration Density Front-side/Back-side Devices 128 MB 256 Mbit 16 M x 16/empty 256 MB 256 Mbit 32 M x 8/empty 256 MB 512 Mbit 32 M x 16/empty... -
Page 20: Memory Configurations
Intel Desktop Board D915GMH Technical Product Specification 1.6.1 Memory Configurations The Intel 82915G 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. -
Page 21: Dual Channel (Interleaved) Mode Configuration With Two Dimms
Product Description 1.6.1.1 Dual Channel (Interleaved) Mode Configurations Figure 4 shows a dual channel configuration using two DIMMs. In this example, the DIMM0 (blue) sockets of both channels are populated with identical DIMMs. Channel A, DIMM 0 1 GB Channel A, DIMM 1 1 GB Channel B, DIMM 0 Channel B, DIMM 1... -
Page 22: Dual Channel (Interleaved) Mode Configuration With Four Dimms
Intel Desktop Board D915GMH Technical Product Specification Figure 6 shows a dual channel configuration using four DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the combined capacity of the two DIMMs in Channel B. Also, the DIMMs are matched between DIMM0 and DIMM1 of both channels. -
Page 23: Single Channel (Asymmetric) Mode Configuration With One Dimm
Product Description 1.6.1.2 Single Channel (Asymmetric) Mode Configurations NOTE Dual channel (Interleaved) mode configurations provide the highest memory throughput. Figure 7 shows a single channel configuration using one DIMM. In this example, only the DIMM0 (blue) socket of Channel A is populated. Channel B is not populated. Channel A, DIMM 0 256 MB Channel A, DIMM 1... -
Page 24: Intel ® 915G Chipset
Chapter 2 1.7.1 Intel 915G Graphics Subsystem The Intel 915G chipset contains two separate, mutually exclusive graphics options. Either the GMA900 graphics controller (contained within the 82915G GMCH) is used, or a PCI Express x16 add-in card can be used. When a PCI Express x16 add-in card is installed, the GMA900 graphics controller is disabled. - Page 25 PCI Express x16 connector. The DVO ports can be paired for a dual channel configuration to support up to a 400 MHz pixel clock. When an ADD2-R card is detected, the Intel GMA900 graphics controller is enabled and the PCI Express x16 connector is configured for DVO mode.
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Page 26: Usb
Intel Desktop Board D915GMH Technical Product Specification NOTE This board supports ADD2-R cards only. Other types of ADD2 cards are not compatible with this board. 1.7.2 USB The board supports up to eight USB 2.0 ports, supports UHCI and EHCI, and uses UHCI- and EHCI-compatible drivers. - Page 27 Product Description The Parallel ATA IDE interface also supports ATAPI devices (such as CD-ROM drives) and ATA devices using the transfer modes. The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate and translation mode to the BIOS. The board supports Laser Servo (LS-120) diskette technology through the Parallel ATA IDE interfaces.
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Page 28: Real-Time Clock, Cmos Sram, And Battery
BIOS, and installing drivers. The following steps are required to successfully establish a RAID configuration. 1. Enable RAID Support in BIOS. 2. Create a RAID array using the Intel Application Accelerator (IAA) utility. 3. Install the IAA RAID driver. 4. Format the RAID array. -
Page 29: I/O Controller
Product Description 1.9 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 •... -
Page 30: Keyboard And Mouse Interface
For the front panel jack sensing and automatic retasking feature to function, a front panel daughter card that is designed for Intel High Definition Audio must be used. Otherwise, an AC ’97 style audio front panel connector will be assumed and the Line Out and Mic In functions will be... -
Page 31: Audio Subsystem Software
Product Description 1.10.1 Audio Subsystem Software Audio software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining audio software and drivers Section 1.4, page 17 1.10.2 Audio Connectors The board contains audio connectors on both the back panel and the component side of the board. -
Page 32: 8-Channel (7.1) Audio Subsystem
Intel Desktop Board D915GMH Technical Product Specification 1.10.3 8-Channel (7.1) Audio Subsystem The 8-channel (7.1) audio subsystem includes the following: • Intel 82801FR I/O Controller Hub (ICH6) • Realtek ALC880 audio codec • Microphone input that supports a single dynamic, condenser, or electret microphone The front and back panel audio connectors are configurable through the audio device drivers. -
Page 33: Channel (7.1) Audio Subsystem Block Diagram
Figure 10 is a block diagram of the 8-channel (7.1) audio subsystem. Mic In/Retasking Jack B Line In/Retasking Jack C Line Out/Retasking Jack D 82801FB Front Panel Retasking Jack A/E [Port 1] Intel I/O Controller Realtek High Definition Front Panel Retasking Jack F [Port 2] ALC880... -
Page 34: 6-Channel (5.1) Audio Subsystem
Intel Desktop Board D915GMH Technical Product Specification 1.10.4 6-Channel (5.1) Audio Subsystem The 6-channel (5.1) 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 panel audio connectors are configurable through the audio device drivers. -
Page 35: Lan Subsystem
PCI Conventional bus power management ⎯ Supports ACPI technology ⎯ Supports LAN wake capabilities 1.11.1 10/100 Mbits/sec LAN Subsystem The 10/100 Mbits/sec LAN subsystem includes the ICH6, the Intel 82562EZ PLC, and an RJ-45 LAN connector with integrated status LEDs. ® 1.11.1.1... -
Page 36: Gigabit Lan Subsystem
Intel Desktop Board D915GMH Technical Product Specification Table 6 describes the LED states when the board is powered up and the 10/100 Mbits/sec LAN subsystem is operating. Table 6. LAN Connector LED States LED Color LED State Condition Green LAN link is not established. -
Page 37: Alert Standard Format (Asf) Support
Product Description Table 7. LAN Connector LED States Color LED State Condition LAN link is not established. Left Green LAN link is established. Blinking LAN activity is occurring. 10 Mbits/sec data rate is selected. Right Green 100 Mbits/sec data rate is selected. Yellow 1000 Mbits/sec data rate is selected. -
Page 38: Lan Subsystem Software
Intel Desktop Board D915GMH Technical Product Specification 1.11.4 LAN Subsystem Software LAN software and drivers are available from Intel’s World Wide Web site. For information about Refer to Obtaining LAN software and drivers Section 1.4, page 17 1.12 Hardware Management Subsystem The hardware management features enable the board to be compatible with the Wired for Management (WfM) specification. -
Page 39: Thermal Monitoring
Product Description 1.12.2 Thermal Monitoring Figure 15 shows the location of the sensors and fan connectors. 82801 Intel (ICH) 82915G Intel (GMCH) OM17546 Item Description Thermal diode, located on processor die Remote ambient temperature sensor Ambient temperature sensor, internal to hardware monitoring and fan control ASIC... -
Page 40: Fan Monitoring
Intel Desktop Board D915GMH Technical Product Specification 1.12.3 Fan Monitoring ® Fan monitoring can be implemented using Intel Desktop Utilities, LANDesk* software, or third- party software. The level of monitoring and control is dependent on the hardware monitoring ASIC used with the Desktop Board. -
Page 41: Effects Of Pressing The Power Switch
Product Description Table 8. Effects of Pressing the Power Switch …and the power switch is If the system is in this state… pressed for …the system enters this state Less than four seconds Power-on (ACPI G2/G5 – Soft off) (ACPI G0 – working state) Less than four seconds Soft-off/Standby (ACPI G0 –... -
Page 42: Hardware Support
Intel Desktop Board D915GMH Technical Product Specification 1.13.1.2 Wake-up Devices and Events Table 10 lists the devices or specific events that can wake the computer from specific states. Table 10. Wake-up Devices and Events These devices/events can wake up the computer…... -
Page 43: Power Connector
Product Description ✏ 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. 1.13.2.1 Power Connector BTX-compliant power supplies can turn off the system power through system control. When an ACPI-enabled system receives the correct command, the power supply removes all non-standby voltages. - Page 44 Intel Desktop Board D915GMH Technical Product Specification 1.13.2.3 LAN Wake Capabilities CAUTION For LAN wake capabilities, the +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to provide adequate standby current when implementing LAN wake capabilities can damage the power supply.
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Page 45: Location Of The Standby Power Indicator Led
Product Description 1.13.2.6 Wake from USB USB bus activity wakes the computer from ACPI S1 or S3 states. ✏ NOTE Wake from USB requires the use of a USB peripheral that supports Wake from USB. 1.13.2.7 Wake from PS/2 Devices PS/2 device activity wakes the computer from an ACPI S1 or S3 state. -
Page 46: Trusted Platform Module (Optional)
Intel Desktop Board D915GMH Technical Product Specification 1.14 Trusted Platform Module (Optional) The optional Trusted Platform Module (TPM) is a component on the desktop board that is specifically designed to enhance platform security above-and-beyond the capabilities of today’s software by providing a protected space for key operations and other security critical tasks. Using both hardware and software, the TPM protects encryption and signature keys at their most vulnerable stages—operations when the keys are being used unencrypted in plain-text form. -
Page 47: Security Precautions
Product Description 1.14.3 Security Precautions Security, like any other aspect of computer maintenance requires planning. What is unique about security has to do with understanding who "friends" and adversaries are. The TPM provides mechanisms to enable the owner/user to protect their information from adversaries. To provide this protection the TPM effectively puts "locks"... -
Page 48: Trusted Platform Module Ownership
Intel Desktop Board D915GMH Technical Product Specification 1.14.3.2 Emergency Recovery File Back Up Procedures The Emergency Recovery Token (SPEmRecToken.xml) must be saved or moved to a removable media (floppy, USB drive, CDR, flash media, etc). Once this is done, the removable media should be stored in a secure location. -
Page 49: Enabling The Trusted Platform Module
Product Description 1.14.5 Enabling the Trusted Platform Module The Trusted Platform Module is disabled by default when shipped to insure that the owner/end customer of the system initializes the TPM and configures all security passwords. The owner/end customer should use the following steps to enable the TPM. 1. -
Page 50: Recovery Procedures
Intel Desktop Board D915GMH Technical Product Specification 15. Follow the instructions and create and document the locations for both the archive and restoration key files. The key archive should be located on a removable media and stored in a secure location when not in use. -
Page 51: Clearing Trusted Platform Module Ownership
Product Description 4. Follow the instructions during the Security Platform Initialization, and append the Emergency Recovery Archive to the existing archive. 5. Provide all the necessary passwords, files, and file locations as requested. It may take up to 20 minutes for Security Platform Initialization Wizard to restore the security platform settings. 6. -
Page 52: Software Support
Intel Desktop Board D915GMH Technical Product Specification 1.14.9 Software Support • For assistance with the Infineon Security Platform Software, visit the web at: http://www.infineon.com • For assistance with the Wave System EMBASSY Trust Suite, visit the web at: http://www.wave.com/support/ets.html •... -
Page 53: Technical Reference
2 Technical Reference What This Chapter Contains Introduction ........................53 Memory Resources ...................... 53 DMA Channels ......................55 Fixed I/O Map....................... 56 PCI Configuration Space Map..................57 Interrupts ........................58 PCI Conventional Interrupt Routing Map ..............59 Connectors........................60 Jumper Block ....................... 72 2.10 Mechanical Considerations .................. -
Page 54: Detailed System Memory Address Map
Intel Desktop Board D915GMH Technical Product Specification The amount of installed memory that can be used will vary based on add-in cards and BIOS settings. Figure 17 shows a schematic of the system memory map. All installed system memory can be used when there is no overlap of system addresses. -
Page 55: Memory Map
Technical Reference 2.2.2 Memory Map Table 11 lists the system memory map. Table 11. System Memory Map Address Range (decimal) Address Range (hex) Size Description 1024 K - 4194304 K 100000 - FFFFFFFF 4095 MB Extended memory 960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS... -
Page 56: Fixed I/O Map
Intel Desktop Board D915GMH Technical Product Specification 2.4 Fixed I/O Map Table 13. I/O Map Address (hex) Size Description 0000 - 00FF 256 bytes Used by the Desktop Board D915GMH. Refer to the ICH6 data sheet for dynamic addressing information. -
Page 57: Pci Configuration Space Map
Device Function Number (hex) Number (hex) Number (hex) Description Memory controller of Intel 82915G component (Note 1) PCI Express x16 graphics port Integrated graphics controller Integrated graphics controller Intel High Definition Audio Controller PCI Express port 1 (PCI Express x1 bus connector 1) -
Page 58: Interrupts
Intel Desktop Board D915GMH 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. -
Page 59: Pci Conventional Interrupt Routing Map
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. -
Page 60: Connectors
Intel Desktop Board D915GMH 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. -
Page 61: Back Panel Connectors For 8-Channel (7.1) Audio Subsystem
Technical Reference 2.8.1.1 Back Panel Connectors For 8-Channel (7.1) Audio Subsystem Figure 18 shows the location of the back panel connectors for boards equipped with the 8-channel (7.1) audio subsystem. OM17329 Figure 18. Back Panel Connectors for 8-Channel (7.1) Audio Subsystem Table 17 lists the back panel connectors identified in Figure 18. -
Page 62: Back Panel Connectors For 6-Channel (5.1) Audio Subsystem
Intel Desktop Board D915GMH Technical Product Specification 2.8.1.2 Back Panel Connectors For 6-Channel (5.1) Audio Subsystem Figure 19 shows the location of the back panel connectors for boards equipped with the 6-channel (5.1) audio subsystem. OM17328 Figure 19. Back Panel Connectors for 6-Channel (5.1) Audio Subsystem Table 18 lists the back panel connectors identified in Figure 19. -
Page 63: Back Panel Connectors Shown In Figure 19
Technical Reference Table 18. Back Panel Connectors Shown in Figure 19 Item/callout from Figure 19 Description PS/2 mouse port [Green] Parallel port [Burgundy] IEEE-1394a connector (optional) Audio line in/Retasking Jack C [Blue] Front left/right channel audio out/Two channel audio line out/Retasking Jack D [Lime green] Mic in/Retasking Jack B [Pink] USB ports (four) -
Page 64: Component-Side Connectors
Intel Desktop Board D915GMH Technical Product Specification 2.8.2 Component-side Connectors Figure 20 shows the locations of the component-side connectors. 82801 Intel (ICH) Intel 82915G (GMCH) OM17543 Figure 20. Component-side Connectors Table 19 lists the component-side connectors identified in Figure 20. -
Page 65: Component-Side Connectors Shown In Figure 20
Technical Reference Table 19. Component-side Connectors Shown in Figure 20 Item/Callout from Figure 20 Description Front panel audio connector Chassis intrusion connector Main Power connector Front panel USB connectors PCI Express x1 bus add-in card connector PCI Conventional bus add-in card connector 2 PCI Conventional bus add-in card connector 1 PCI Express x16 bus add-in card connector Alternate power connector... -
Page 66: Front Panel Audio Connector
Intel Desktop Board D915GMH Technical Product Specification Table 22. Front Panel Audio Connector Signal Name Signal Name Port E [Port 1] Left Channel Ground Port E [Port 1] Right Channel Presence# (dongle present) Port F [Port 2] Right Channel Port E [Port 1] Sense return... -
Page 67: Main Power Connector
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 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. -
Page 68: Processor Core Power Connector
Intel Desktop Board D915GMH Technical Product Specification Table 28. Processor Core Power Connector Signal Name Signal Name Ground Ground +12 V +12 V Table 29. Alternate Power Connector Signal Name +12 V Ground Ground +5 V 2.8.2.2 Add-in Card Connectors The board has the following add-in card connectors: •... -
Page 69: Connection Diagram For Front Panel Connector
Technical Reference 2.8.2.3 Auxiliary Front Panel Power/Sleep LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 30. Auxiliary Front Panel Power/Sleep LED Connector Signal Name In/Out Description HDR_BLNK_GRN Front panel green LED... -
Page 70: States For A One-Color Power Led
Intel Desktop Board D915GMH Technical Product Specification 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. Proper LED function requires one of the following: •... -
Page 71: Connection Diagram For Front Panel Usb Connectors
Technical Reference 2.8.2.5 Front Panel USB Connectors Figure 22 is a connection diagram for the front panel USB connectors. INTEGRATOR’S NOTES • The +5 V DC power on the USB connector is fused. • Pins 1, 3, 5, and 7 comprise one USB port. •... -
Page 72: Jumper Block
Intel Desktop Board D915GMH 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. -
Page 73: Mechanical Considerations
Technical Reference 2.10 Mechanical Considerations 2.10.1 Form Factor The board is designed to fit into a BTX-form-factor chassis. Figure 25 illustrates the mechanical form factor of the board. Dimensions are given in inches [millimeters]. The outer dimensions are 10.50 inches by 10.40 inches [266.70 millimeters by 264.16 millimeters]. 0.250 [6.35] 10.200... -
Page 74: I/O Shield
Intel Desktop Board D915GMH 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 need the back panel I/O shield to pass certification testing. Figure 26 shows the I/O shield for board with the 8-channel (7.1) audio subsystem. -
Page 75: I/O Shield Dimensions For Boards With The 6-Channel (5.1) Audio Subsystem
Technical Reference 6.808 Ref [172.93] 0.512 [13.00] 6.692 ±0.010 [168.98 ±0.254] 0.039 Dia. [1.00] 0.380 1.687 Ref [9.65] [42.84] 0.00 0.361 [9.18] 0.455 0.370 [11.55] [9.40] OM17553 Figure 27. I/O Shield Dimensions for Boards with the 6-channel (5.1) Audio Subsystem... -
Page 76: Electrical Considerations
Intel Desktop Board D915GMH Technical Product Specification 2.11 Electrical Considerations 2.11.1 DC Loading Table 35 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. -
Page 77: Power Supply Considerations
All responsibility for determining the adequacy of any thermal or system design remains solely with the reader. Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance. -
Page 78: Localized High Temperature Zones
Intel Desktop Board D915GMH Technical Product Specification OM17547 Item Description Intel 82915G GMCH Intel 82801FB ICH6 1.5 V core and front side bus voltage regulator areas Processor Processor voltage regulator area Figure 28. Localized High Temperature Zones... -
Page 79: Reliability
Intel 82801FB ICH6 C (under bias) For information about Refer to Intel Pentium 4 processor datasheets and specification updates Section 1.4, page 17 2.13 Reliability The Mean Time Between Failures (MTBF) prediction is calculated using component and subassembly random failure rates. The calculation is based on the Bellcore Reliability Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. -
Page 80: Environmental
Intel Desktop Board D915GMH Technical Product Specification 2.14 Environmental Table 38 lists the environmental specifications for the board. Table 38. Environmental Specifications Parameter Specification Temperature -40 °C to +70 °C Non-Operating 0 °C to +55 °C Operating Shock Unpackaged 50 g trapezoidal waveform... -
Page 81: Regulatory Compliance
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 39 lists the safety regulations the Desktop Board D915GMH complies with when correctly installed in a compatible host system. Table 39. -
Page 82: European Union Declaration Of Conformity Statement
Connect the equipment to a different electrical branch circuit from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Any changes or modifications to the equipment not expressly approved by Intel Corporation could void the user’s authority to operate the equipment. 2.15.2.2 Canadian Compliance Statement This Class B digital apparatus complies with Canadian ICES-003. -
Page 83: Product Ecology Statements
2.15.4.2 Recycling Considerations Intel encourages its customers to recycle its products and their components (e.g., batteries, circuit boards, plastic enclosures, etc.) whenever possible. In the U.S., a list of recyclers in your area can be found at: http://www.eiae.org/... -
Page 84: Product Certification Markings (Board Level)
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 D915GMH model designation (component side). -
Page 85: Overview Of Bios Features
BIOS Security Features ....................91 3.1 Introduction The board uses an Intel/AMI BIOS that is stored in the Firmware Hub (FWH) and can be updated using a disk-based program. The FWH contains the BIOS Setup program, POST, the PCI auto- configuration utility, and Plug and Play support. -
Page 86: Bios Flash Memory Organization
Intel Desktop Board D915GMH Technical Product Specification Table 42 lists the BIOS Setup program menu features. Table 42. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Power Boot Exit Clears Displays Configures Sets Configures Selects boot Saves or passwords and... -
Page 87: System Management Bios (Smbios)
Overview of BIOS Features to PIO Mode 3 or 4, depending on the capability of the drive. You can override the auto- configuration options by specifying manual configuration in the BIOS Setup program. To use ATA-66/100 features the following items are required: •... -
Page 88: Bios Updates
To install an operating system that supports USB, verify that Legacy USB support in the BIOS Setup program is set to Enabled and follow the operating system’s installation instructions. 3.6 BIOS Updates The BIOS can be updated using either of the following utilities, which are available on the Intel World Wide Web site: •... -
Page 89: Boot Options
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. -
Page 90: Fast Booting Systems With Intel ® Rapid Bios Boot
It is possible to optimize the boot process to the point where the system boots so quickly that the Intel logo screen (or a custom logo splash screen) will not be seen. Monitors and hard disk drives with minimum initialization times can also contribute to a boot time that might be so fast that necessary logo screens and POST messages cannot be seen. -
Page 91: Bios Security Features
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: •... - Page 92 Intel Desktop Board D915GMH Technical Product Specification...
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Page 93: Error Messages And Beep Codes
4 Error Messages and Beep Codes What This Chapter Contains BIOS Error Messages ....................93 Port 80h POST Codes ....................95 Bus Initialization Checkpoints ..................99 Speaker........................100 BIOS Beep Codes...................... 100 4.1 BIOS Error Messages Table 46 lists the error messages and provides a brief description of each. Table 46. - Page 94 Intel Desktop Board D915GMH Technical Product Specification Table 46. 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.
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Page 95: Port 80H Post Codes
F000:0000 in Shadow RAM and give control to recovery code in F000 Shadow RAM. Initialize interrupt vector tables, initialize system timer, initialize DMA controller and interrupt controller. Initialize extra (Intel Recovery) Module. Initialize floppy drive. Try to boot from floppy. If reading of boot sector is successful, give control to boot sector code. -
Page 96: Runtime Code Uncompressed In F000 Shadow Ram
Intel Desktop Board D915GMH Technical Product Specification Table 49. Runtime Code Uncompressed in F000 Shadow RAM Code Description of POST Operation NMI is Disabled. To check soft reset/power-on. BIOS stack set. Going to disable cache if any. POST code to be uncompressed. - Page 97 Error Messages and Beep Codes Table 49. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation To prepare the descriptor tables. To enter in virtual mode for memory test. To enable interrupts for diagnostics mode. To initialize data to check memory wrap around at 0:0. Data initialized.
- Page 98 Intel Desktop Board D915GMH Technical Product Specification Table 49. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Lock-key checking over. To check for memory size mismatch with CMOS. Memory size check done. To display soft error and check for password or bypass setup.
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Page 99: Bus Initialization Checkpoints
Error Messages and Beep Codes Table 49. Runtime Code Uncompressed in F000 Shadow RAM (continued) Code Description of POST Operation Uncompress SMBIOS module and init SMBIOS code and form the runtime SMBIOS image in shadow. Going to copy any code to specific area. Copying of code to specific area done. -
Page 100: Speaker
Intel Desktop Board D915GMH Technical Product Specification Table 52 describes the lower nibble of the high byte and indicates the bus on which the routines are being executed. Table 52. Lower Nibble High Byte Functions Value Description Generic DIM (Device Initialization Manager)