Power Management

Support for Advanced Configuration and Power Interface (ACPI) Suspend to RAM (STR) Wake on USB, PCI, PCI Express, PS/2, LAN, and front panel

Hardware Management

Hardware monitor with: Three fan sensing inputs used to monitor fan activity Remote diode temperature sensing Intel Precision Cooling Technology fan speed control that automatically adjusts processor fan speed based on processor temperature and chassis fan speeds based on system temperature Voltage sensing to detect out of range values

Security (Optional)

Trusted Platform Module (Optional)
Related Links: For more information about Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG, including the Technical Product Specification (TPS), BIOS updates, and device drivers, go to: http://support.intel.com/support/motherboards/desktop/

Desktop Board Features

Manufacturing Options
Table 2 shows the manufacturing options for Desktop Board D915GEV/D915GUX/ D915GAV/D915GAG.

Table 2.

Option LAN Gigabit LAN Gigabit LAN and TPM
Description Intel 82562EZ 10/100 Mbit/sec Platform LAN Connect (PLC) device with RJ-45 connector Marvell* 88E8050 PCI Express Gigabit Ethernet Controller (10/100/1000 Mbit/sec ) with RJ-45 connector Marvell* 88E8050 PCI Express Gigabit Ethernet Controller (10/100/1000 Mbit/sec ) with RJ-45 connector Infineon* Trusted Platform Module
Supported Operating Systems
The desktop board supports the following operating systems: Microsoft Windows* 2000 Microsoft Windows XP

Desktop Board Components

Figure 1 shows the approximate location of the major components on desktop boards D915GAV and D915GEV.

Line In

A W V U
Channel A DIMM 0 DIMM 1 Channel B DIMM 0 DIMM 1

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Figure 1. Desktop Boards D915GAV and D915GEV Components

Table 3.

Label A B C D E F G H I J K L M N O P Q R S T U V W
Desktop Boards D915GAV and D915GEV Components
Description Front panel audio header PCI Express x16 connector Rear chassis fan header 1 (fan speed control) Alternate power connector (1x4) 12 V processor core voltage connector (2x2) Processor socket Processor fan header (4-pin, fan speed control) Main power connector (2x12) Diskette drive connector Primary IDE connector Battery Chassis intrusion header BIOS configuration jumper Trusted Platform Module (optional) Front chassis fan header (fan speed control) Serial ATA connectors (four) Power LED header Front panel header USB 2.0 headers PCI bus add-in card connectors Speaker PCI Express x1 connectors Rear chassis fan header 2 (always on)
Figure 2 shows the approximate location of the major components on desktop boards D915GAG and D915GUX.

Channel A

DIMM 0 DIMM 1 Channel B DIMM 0 DIMM 1

R Q P O N M L

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Figure 2. Intel Desktop Boards D915GUX and D915GAG Components

Table 4.

Label A B C D E F G H I J K L M N O P Q R S T U V
Desktop Boards D915GAG and D915GUX Components
Description Front panel audio header PCI Express x16 connector Rear chassis fan header (fan speed control) Alternate power connector (1x4) 12 V processor core voltage connector (2x2) Processor socket Processor fan header (4-pin, fan speed control) Main power connector (2x12) Diskette drive connector Primary IDE connector Battery Chassis intrusion header BIOS configuration jumper Trusted Platform Module (optional) Front chassis fan header (fan speed control) Serial ATA connectors (four) Power LED header Front panel header USB 2.0 headers PCI bus add-in card connectors Speaker PCI Express x1 connector
Related Links: Go to the following links for more information about: http://www.intel.com/design/motherbd Intel Desktop Board http://support.intel.com/support/motherboards/desktop D915GEV/D915GUX/ D915GAV/D915GAG http://support.intel.com/support/motherboards/desktop Supported processors http://www.intel.com/design/motherbd Audio software and utilities http://www.intel.com/design/motherbd LAN software and drivers

Processor

Failure to use an ATX12V power supply, or not connecting the 12 V (2x2) processor core voltage power supply connector to Desktop Board D915GEV/D915GUX/D915GAV/D915GAG may result in damage to the desktop board and/or power supply. Desktop Boards D915GEV, D915GUX, D915GAV, and D915GAG support a single Intel Pentium 4 processor in the LGA775 package. Processors are not included with the desktop board and must be purchased separately. The processor connects to the Intel desktop board through the LGA775 socket. The supported processors list for Desktop Boards D915GEV, D915GUX, D915GAV, and D915GAG is located on the web at: http://support.intel.com/support/motherboards/desktop/ Related Links: Go to the following links or pages for more information about: Supported Intel processors for Desktop Board D915GEV/D915GUX/D915GAV/D915GAG http://support.intel.com/support/motherboards/desktop/ Instructions on installing or upgrading the processor, page 32 in Chapter 2 The location of the two power connectors, page 48 in Chapter 2

Main Memory

To be fully compliant with all applicable Intel SDRAM memory specifications, the board should be populated with DIMMs that support the Serial Presence Detect (SPD) data structure. If your memory modules do not support SPD, you will see a notification to this effect on the screen at power up. The BIOS will attempt to configure the memory controller for normal operation. The desktop board supports dual or single channel memory configurations. Desktop boards D915GAV and D915GAG support dual or single channel memory configurations defined in Table 5.

Input/Output (I/O) Controller
The super I/O controller features the following: Low pin count (LPC) interface 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 systems PS/2-style mouse and keyboard interfaces Interface for one 1.2 MB or 1.44 MB diskette drive Intelligent power management, including a programmable wake up event interface PCI power management support

LAN Subsystem (Optional)

The optional LAN, with the Intel 82801FB (ICH6), provides a Fast PCI LAN subsystem. The LAN subsystem provides the following functions: Basic 10/100 Ethernet LAN (Intel 82562EZ) or Marvell 10/100/1000 Gigabit Ethernet LAN Support for RJ-45 connector with status indicator LEDs Programmable transit threshold Configurable EEPROM that contains the MAC address

LAN Subsystem Software

For LAN software and drivers, refer to the D915GEV/D915GUX/D915GAV/D915GAG link on Intels World Wide Web site at: http://support.intel.com/support/motherboards/desktop

RJ-45 LAN Connector LEDs

Two LEDs are built into the RJ-45 LAN connector (see Figure 3).

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Figure 3. Back Panel LAN Connector LED Locations
Table 7 describes the LED states when the board is powered up and the 10/100 Ethernet LAN subsystem is operating.

Table 7.

LED Color Green
RJ-45 10/100 Ethernet LAN Connector LEDs
LED State Off On Blinking Indicates LAN link is not established. LAN link is established. LAN activity is occurring. 10 Mbits/sec data rate is selected. 100 Mbits/sec data rate is selected.

Yellow

Off On (steady state)
Table 8 describes the LED states when the board is powered up and the 10/100/1000 Gigabit Ethernet LAN subsystem is operating.

Table 8.

LED Color Bi-color LED
RJ-45 10/100/1000 Gigabit Ethernet LAN Connector LEDs
LED State Off Green Yellow Indicates 10 Mbit/sec data rate is selected. 100 Mbit/sec data rate is selected. 1 Gbit/sec data rate is selected. LAN link is not established. The computer is communicating with another computer on the LAN.

Off On (pulsing)

Hi-Speed USB 2.0 Support
Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device. The desktop board supports up to eight USB 2.0 ports via ICH6; four ports routed to the back panel and four routed to two internal USB 2.0 headers. USB 2.0 ports are backward compatible with USB 1.1 devices. USB 1.1 devices will function normally at USB 1.1 speeds. USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates. Disabling Hi-Speed USB in BIOS reverts all USB 2.0 ports to USB 1.1 operation. This may be required to accommodate operating systems that do not support USB 2.0.

Suspend to RAM (Instantly Available PC Technology) CAUTION
For Instantly Available PC technology, the 5 V standby line for the power supply must be capable of delivering adequate +5 V standby current. Failure to provide adequate standby current when using this feature can damage the power supply and/or effect ACPI S3 sleep state functionality.
Power supplies used with this desktop board must be able to provide enough standby current to support the standard Instantly Available (ACPI S3 sleep state) configuration. If the standby current necessary to support multiple wake events from the PCI and/or USB buses exceeds power supply capacity, the desktop board may lose register settings stored in memory.
Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-RAM) sleep state. While in the S3 sleep state, the computer will appear to be off. When signaled by a wake-up device or event, the system quickly returns to its last known awake state. The desktop boards standby power indicator, shown in Figure 4, is lit when there is standby power to the system. This includes the memory modules and PCI bus connectors, even when the computer appears to be off. If the system has a dual-colored power LED on the front panel, the sleep state is indicated by the LED turning amber.

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Figure 4. Location of Standby Power Indicator
Related Links: For more information on standby current requirements for the desktop board, refer to the Technical Product Specification by going to the following link, finding the product, and selecting Product Documentation from the left-hand menu: http://support.intel.com/support/motherboards/desktop/

Resume on Ring

The operation of Resume on Ring can be summarized as follows: Resumes operation from either ACPI S1 or ACPI S3 state Requires only one call to access the computer Detects incoming call similarly for external and internal modems Requires modem interrupt be unmasked for correct operation

Wake from USB NOTE

Wake from USB requires the use of a USB peripheral that supports wake from USB. USB bus activity wakes the computer from an ACPI S1 or S3 state.
Wake from PS/2 Keyboard/Mouse
PS/2 keyboard/mouse activity wakes the computer from an ACPI S1 or S3 state.

PME# Wakeup Support

When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI S1, S3, or S5 state.

Speaker

A speaker is mounted on the desktop board. The speaker provides audible error code (beep code) information during the Power-On Self-Test (POST).

Battery

A battery on the desktop board keeps the values in CMOS RAM and the clock current when the computer is turned off. Go to page 55 for instructions on how to replace the battery.

Installation Instructions
Follow these guidelines to meet safety and regulatory requirements when installing this board. 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 with these instructions or the instructions for associated modules, contact the suppliers technical support to find out how you can ensure that your computer meets safety and regulatory requirements. If you do not follow these instructions and the instructions provided by chassis and module suppliers, you increase safety risk and the possibility of noncompliance with regional laws and regulations.
Ensure Electromagnetic Compatibility (EMC) Compliance
Before computer integration, make sure that the power supply and other modules or peripherals, as applicable, have passed Class B EMC testing and are marked accordingly. Pay close attention to the following when reading the installation instructions for the host chassis, power supply, and other modules: Product certifications or lack of certifications External I/O cable shielding and filtering Mounting, grounding, and bonding requirements Keying connectors when mating the wrong connectors could be hazardous If the power supply and other modules or peripherals, as applicable, are not Class B EMC compliant before integration, then EMC testing is required on a representative sample of the newly completed computer.
Installing and Replacing Desktop Board Components
Chassis and Component Certifications
Ensure that the chassis and certain components; such as the power supply, peripheral drives, wiring, and cables; are components certified for the country or market where used. Agency certification marks on the product are proof of certification. Typical product certifications include: In Europe The CE marking signifies compliance with all applicable European requirements. If the chassis and other components are not properly CE marked, a suppliers Declaration of Conformity statement to the European EMC directive and Low Voltage directive (as applicable), should be obtained. Additionally, other directives, such as the Radio and Telecommunications Terminal Equipment (R&TTE) directive may also apply depending on product features. In the United States A certification mark by a Nationally Recognized Testing Laboratory (NRTL) such as UL, CSA, or ETL signifies compliance with safety requirements. Wiring and cables must also be UL listed or recognized and suitable for the intended use. The FCC Class B logo for home or office use signifies compliance with electromagnetic interference (EMI) requirements. In Canada A nationally recognized certification mark such as CSA or cUL signifies compliance with safety requirements. The Industry Canada statement at the front of this product guide demonstrates compliance with Canadian EMC regulations. Industry Canada recognizes and accepts FCC certification as denoting compliance with national electromagnetic interference (emissions) requirements.

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Figure 13. Connecting the Processor Fan Heat Sink Cable to the Processor Fan Connector

Removing the Processor

For instruction on how to remove the processor fan heat sink and processor, refer to the processor installation manual or the Intel World Wide Web site at: http://support.intel.com/support/processors/pentium4/intnotes478.htm
Installing and Removing Memory
To be fully compliant with all applicable Intel SDRAM memory specifications, the boards require DIMMs that support the Serial Presence Detect (SPD) data structure. You can access the PC Serial Presence Detect Specification at: http://www.intel.com/technology/memory/pcsdram/spec/ Desktop boards D915GAV and D915GAG have four 184-pin DDR DIMM sockets arranged as DIMM 0 (blue) and DIMM 1 (black) in both Channel A and Channel B. Desktop boards D915GEV and D915GUX have four 240-pin DDR2 DIMM sockets arranged as DIMM 0 (blue) and DIMM 1 (black) in both Channel A and Channel B.
Guidelines for Dual Channel Memory Configuration
Before installing DIMMs, read and follow these guidelines for dual channel configuration.

Two or Four DIMMs

Install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) of both channels A and B (see Figure 14).
Channel A 1 GB, 400 MHz Channel B 1 GB, 400 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1
Figure 14. Dual Configuration Example 1
If additional memory is to be used, install another matched pair of DIMMs in DIMM 1 (black) in both channels A and B (see Figure 15).
Channel A 256 MB, 400 MHz 512 MB, 400 MHz Channel B 256 MB, 400 MHz 512 MB, 400 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1
Figure 15. Dual Configuration Example 2 Three DIMMs
Install a matched pair of DIMMs equal in speed and size in DIMM 0 (blue) and DIMM 1 (black) of channel A. Install a DIMM equal in speed and total size of the DIMMs installed in channel A in either DIMM 0 or DIMM 1 of channel B (see Figure 16).
Channel A 256 MB, 400 MHz 256 MB, 400 MHz Channel B 512 MB, 400 MHz DIMM 0 DIMM 1 DIMM 0 DIMM 1
Figure 16. Dual Configuration Example 3
All other memory configurations will result in single channel memory operation.

Installing DIMMs CAUTION

Install memory in the DIMM sockets prior to installing the PCI Express video card to avoid interference with the memory retention mechanism. To make sure you have the correct DIMM, place the DIMM on the illustration in Figure 17.

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Figure 20. Connecting the IDE Cable
Connecting the Serial ATA (SATA) Cable
The SATA cable (4-conductor) supports the Serial ATA protocol and connects a single drive to the desktop board. Either end of the cable can be connected to the SATA drive or the connector on the board. For correct cable function: 1. Observe the precaution in "Before You Begin" on page 27. 2. Attach either cable end to the connector (Figure 21, A) on the board. 3. Attach the other cable end to the drive (Figure 21, B).

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Figure 21. Connecting the Serial ATA Cable
Connecting Internal Headers
Before connecting cables to the internal headers, observe the precautions in "Before You Begin" on page 27. Figure 22 shows the location of the internal headers.
Port1L Port1R Port2R Sense_Send Port2L
GND Presence# Sense1_Ret Key (no pin) Sense2_Ret
USB A Power (+5V) DD+ Ground Key (no pin)
USB B Power (+5V) DD+ Ground 10 N/C
1 No Connection Reset HD LED 1

On/Off

Power LED
Item A B C D E Description Chassis intrusion Power LED Front panel USB 2.0 Front panel audio

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Figure 22. Internal Headers
Installing a Front Panel Audio Solution
Figure 22, E on page 44 shows the location of the yellow front panel audio header. Table 9 shows the pin assignments for the front panel audio header.

Table 9.

Front Panel Audio Header Signal Names
Signal Name Port1L Port1R Port2R Sense Send Port2L Pin 10 Signal Name GND Presence# Sense1 Ret Key (no pin) Sense2 Ret
To install the cable that connects the front panel audio solution to the front panel audio header, follow these steps: 1. Observe the precautions in "Before You Begin" on page 27. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the cover. 4. Locate the yellow front panel audio header. Remove the two jumpers from the header to disable the back panel audio connectors. 5. Install a correctly keyed and shielded front panel audio cable. 6. Connect the audio cable to the front panel audio solution. 7. Replace the cover. To restore back panel audio, follow these steps: 1. Observe the precautions in "Before You Begin" on page 27. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the cover. 4. Remove the front panel audio cable. 5. Install a jumper on pins 5-6 (rear R channel). 6. Install a jumper on pins 9-10 (rear L channel). 7. Replace the cover.

Connecting USB 2.0 Headers
Before connecting the USB 2.0 headers, observe the precautions in "Before You Begin" on page 27. See Figure 22, D on page 44 for the location of the black USB 2.0 headers. Table 10 shows the pin assignments for the USB 2.0 headers.

Table 10.

USB 2.0 Header Signal Names
USB Port A Signal name Power DD+ Ground Key Pin 10 USB Port B Signal name Power DD+ Ground No connect
Note: USB ports may be assigned as needed.
Connecting the Front Panel Header
Before connecting the front panel header, observe the precautions in "Before You Begin" on page 27. See Figure 22, C on page 44 for the location of the multi-colored front panel header. Table 11 shows the pin assignments for the front panel header.

Table 11.

Pin Signal HD_PWR HDA#
Front Panel Header Signal Names
In/Out Out Out Description Hard disk LED pullup (330 ) to +5 V Hard disk active LED Pin Signal In/Out Description Front panel green LED Front panel yellow LED Power LED (Green) HDR_BLNK_GRN Out HDR_BLNK_YEL Out
Hard Drive Activity LED (Orange)
Reset Switch (Purple) Ground FP_RESET# In Ground Reset switch Ground
On/Off Switch (Red) SWITCH_ON# In Power switch Ground

Not connected

No pin
Setting Up the Flexible 6-Channel Audio with Jack Re-tasking
After installing the Realtek audio driver from the Intel Express Installer CD-ROM, the multichannel audio feature can be enabled.

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Item A B C
Description Rear left/right out or Line In Front left/right out Center/LFE (Subwoofer) or Mic In
Figure 23. Back Panel Audio Connectors for Flexible 6-Channel Audio System
Multi-Channel Analog Audio
Connect two speakers to the front left/right out (B) and two speakers to the rear left/right out (A) for both 4- and 6-channel audio configurations. For 6-channel audio, connect two additional speakers to the center LFE out (C).
Connecting Fan and Power Cables

Connecting Fan Cables

Figure 24 shows the location of the fan headers. Connect the processors fan heat sink cable to the 4-pin processor fan header on the board. Connect chassis fan cables to the 3-pin fan headers.

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Figure 24. Location of Fan Headers

Connecting Power Cables CAUTION
Failure to use an ATX12V power supply, or not connecting the 12 V (2x2) processor core voltage power supply connector to the desktop board may result in damage to the desktop board and/or power supply.
Connecting 2x10 Power Supply Cables
The 2x12 main power connector on the desktop board is backwards compatible with ATX12V power supplies with 2x10 power connections. Use of the 1x4 power connection is recommended with ATX12V power supplies with 2x10 connections when using PCI Express video cards that can consume up to 75 W. Figure 24 shows the location of the power connectors.

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Figure 25. Connecting 2x10 Power Supply Cables

1. 2. 3. 4.

Observe the precautions in "Before You Begin" on page 27. Connect the 1x4 power supply cable to the 1x4 connector. Connect the 12 V processor core voltage power supply cable to the 2x2 connector. Connect the main power supply cable to the 2x10 connector.
Connecting 2x12 Power Supply Cables
If you have a 2x12 power supply, follow the instruction below. Figure 26 shows the location of the power connectors.

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Figure 26. Connecting 2x12 Power Supply Cables
1. Observe the precautions in "Before You Begin" on page 27. 2. Connect the 12 V processor core voltage power supply cable to the 2x2 connector. 3. Connect the main power supply cable to the 2x12 connector.
PCI Bus Add-In Card Connectors
Figure 27 shows the location of the PCI bus add-in card connectors, PCI Express x16 and x1 add-in card connectors, and peripheral interface connectors for desktop boards D915GAV and D915GEV. Desktop boards D915GUX and D915GAG have two PCI bus add-in card connectors, one PCI Express x16 and one PCI Express x1 add-in card connectors, and peripheral interface connectors.

A B C D E F

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Item A B C D E F G H I

Description PCI bus add-in card connector 4 PCI bus add-in card connector 3 PCI Express x1 connectors PCI bus add-in card connector 2 (SMBus routed) PCI bus add-in card connector 1 PCI Express x16 connector Diskette drive connector IDE connector Serial ATA connectors

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" around the data. Just like physical locks, if keys or combinations are lost, the assets (i.e., data) may be inaccessible not only to adversaries, but also to asset owner/user. The TPM provides two classes of keys: migratable and non-migratable. Migratable keys are designed to protect data that can be used (i.e., unencrypted) on more than one platform. This has the advantage of allowing the key data to be replicated (backed-up and restored) to another platform. This may be because of user convenience (someone uses more than one platform, or the data needs to be available to more than one person operating on different platforms). This type of key also has the advantage in that it can be backed-up and restored from a defective platform onto a new platform. However, migratable keys may not be the appropriate level of protection (e.g., the user wants the data restricted to a single platform) needed for the application. This requires a nonmigratable key. Non-migratable keys carry with them a usage deficit in that while the key may be backed-up and restored (i.e., protected from hard disk failure) they are not protected against system or TPM failure. The very nature of a non-migratable key is that they can be used on one and only one TPM. In the event of a system or TPM failure, all non-migratable keys and the data associated with them will be inaccessible and unrecoverable.
The following precautions and procedures may assist in recovering from any of the previously listed situations. Failure to implement these security precautions and procedures may result in unrecoverable data loss.

Password Procedures

The Infineon Security Platform software allows users to configure passwords from 6 to 255 characters. A good password should consist of: At least one upper case letter (A to Z) At least one numerical character (0 to 9) At least one symbol character (!, @, &, etc.) Example Passwords: I wear a Brown hat 2 worK @ least once-a-month or uJGFak&%)adf35a9m

System builders should pass the Trusted Platform Module Quick Reference (included with the desktop board) to the system owner to assist them in enabling and initializing the TPM.
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. While the PC is displaying the splash screen (or POST screen), press the <F2> key to enter BIOS. 2. Use the arrow keys to go to the Advanced Menu, select Peripheral Configuration, and then press the <Enter> key. 3. Select the Trusted Platform Module, press <Enter>, and select Enabled and press <Enter> again (display should show: Trusted Platform Module [Enabled]). 4. Press the <F10> key, select Ok and press <Enter>. 5. System should reboot and start Microsoft Windows.
Assuming Trusted Platform Module Ownership
Once the TPM has been enabled, ownership must be assumed by using the Infineon Security Platform Software. The owner/end user should follow the steps listed below to take ownership of the TPM: 1. Start the system. 2. Launch the Infineon Security Platform Initialization Wizard. 3. Create Owner password (before creating any password, review the Password Recommendations made earlier in this document). 4. Create a new Recovery Archive (note the file name and location). 5. Specify a Security Platform Emergency Recovery Token password and location. (this password should not match the Owner password or any other password). 6. Define where to save the Emergency Recovery Token (note the file location and name). 7. The software will then create recovery archive files and finalize ownership of the TPM. 8. After completing the Infineon Security Platform Initialization Wizard, the Emergency Recovery Token (SPEmRecToken.xml) must be moved to a removable media (floppy, CDR, flash media, etc) if the file was not saved to a removable media during installation. Once this is

9. 10. 11. 12.

13. 14. 15.

16. 17. 18.

done, the removable media should be stored in a secure location. No copies of this Emergency Recovery Token file should remain on the system. If a copy remains on the system, it could be used to compromise the security of the platform. Launch the Infineon Security Platform User Initialization Wizard. Create a Basic User password (this password is the most frequently used and should not match any other password). Select and configure Security Platform features for this user. After completing the Infineon Security Platform User Initialization Wizard, a copy of the Emergency Recovery Archive (SPEmRecArchive.xml) should be copied to a removable media and stored in a secure location. This procedure should be repeated after any password changes or the addition of new users. Restart the system. To backup the keys for the EMBASSY Trust Suite, the Key Transfer Manager software must be configured. Launch the Key Transfer Manager from the program menu. 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. Create and document the password to protect the key archive. Provide the TPM Owner password to allow the Key Transfer Manager to create the archive and restoration key files. Upon completing the configuration of the Key Transfer Manager, it will place an icon in the task bar and automatically back up all new and updated keys associated with the EMBASSY Trust Suite. If the removable media that contains the archive file is not present when a new key is generated, then keys will have to be manually backed up using the Key Transfer Manager when the removable media is available. All passwords associated with the Infineon Security Platform Software (Owner, Emergency Recovery Token, and User passwords) and Wave Systems EMBASSY Trust Suite and Key Transfer Manager are not recoverable and cannot be reset without the original text. These passwords should be documented and stored in a secured location (vault, safe deposit box, offsite storage, etc.) in case they are needed in the future. These documents and files should be updated after any password changes.

DATA ENCRYPTED BY ANY PROGRAM UTILIZING THE TPM WILL BECOME INACCESSIBLE IF TPM OWNERSHIP IS CLEARED. Recovery procedures may allow the migratable keys to be recovered and might restore access to encrypted data. (Review the Recovery Procedures for detailed instructions). The TPM may be cleared to transfer ownership of the platform to a new owner. 1. Observe precautions in the above WARNING then open the system case. 2. Move the configuration jumper on the board to pins 2-3. 3. Restore power to the PC and power on. 4. System should automatically enter BIOS setup. 5. Use the arrow keys to select Clear Trusted Platform Module, press <Enter>. 6. If you agree to the warning message select Ok and press <Enter>. 7. Press the <F10> key to save and exit, select Ok and press <Enter>. 8. Power off the system. 9. Review precautions in the WARNING above. 10. Restore the configuration jumper on the board to pins 1-2. When cleared, the TPM module is disabled by default.

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 For additional information about TPM and enhancing PC security, visit: https://www.trustedcomputinggroup.org/home

Memory Map

Table 13. System Memory Map
Size 4095 MB 64 KB 64 KB 96 KB 160 KB 1 KB 127 KB 512 KB Description Extended Memory Runtime BIOS Reserved Available high DOS memory (open to the PCI bus) Video memory and BIOS Extended BIOS data (movable by memory manager software) Extended conventional memory Conventional memory 100000 - FFFFFFFF F0000 - FFFFF E0000 - EFFFF C8000 - DFFFF A0000 - C7FFF 9FC00 - 9FFFF 80000 - 9FBFF 00000 - 7FFFF Address Range (decimal) Address Range (hex) 1024 K - 4194304 K 960 K - 1024 K 896 K - 960 K 800 K - 896 K 640 K - 800 K 639 K - 640 K 512 K - 639 K 0 K - 512 K

DMA Channels

Table 14.
Data Width 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 8 or 16 bits 16 bits 16 bits 16 bits Parallel port Floppy drive Parallel port (for ECP or EPP) DMA controller Open Open Open System Resource

DMA Channel Number

Interrupts

Table 15.

IRQ NMI 14 15
System Resource I/O channel check Reserved, interval timer Reserved, keyboard buffer full Reserved, cascade interrupt from slave PIC COM2* (Plug and Play option) / ** COM1* LPT2 (Plug and Play option) / ** Floppy drive controller LPT1* Real time clock ** ** ** Onboard mouse port (if present, else user available) Reserved, math coprocessor Primary IDE/Serial ATA (if present, else user available) Secondary IDE/Serial ATA (if present, else user available)

We, Intel Corporation, declare under our sole responsibility that the product Intel Desktop Board D915GEV/D915GUX/D915GAV/D915GAG is in conformity with all applicable essential requirements necessary for CE marking, following the provisions of the European Council Directive 89/336/EEC (EMC Directive) and Council Directive 73/23/EEC (Safety/Low Voltage Directive). The product is properly CE marked demonstrating this conformity and is for distribution within all member states of the EU with no restrictions.
This product follows the provisions of the European Directives 89/336/EEC and 73/23/EEC.
Dansk Dette produkt er i overensstemmelse med det europiske direktiv 89/336/EEC & 73/23/EEC. Dutch Dit product is in navolging van de bepalingen van Europees Directief 89/336/EEC & 73/23/EEC. Suomi Tm tuote noudattaa EU-direktiivin 89/336/EEC & 73/23/EEC mryksi. Franais Ce produit est conforme aux exigences de la Directive Europenne 89/336/EEC & 73/23/EEC. Deutsch Dieses Produkt entspricht den Bestimmungen der Europischen Richtlinie 89/336/EEC & 73/23/EEC. Icelandic essi vara stenst regluger Evrpska Efnahags Bandalagsins nmer 89/336/ EEC & 73/23/EEC. Italiano Questo prodotto conforme alla Direttiva Europea 89/336/EEC & 73/23/EEC. Norsk Dette produktet er i henhold til bestemmelsene i det europeiske direktivet 89/336/ EEC & 73/23/EEC. Portuguese Este produto cumpre com as normas da Diretiva Europia 89/336/EEC & 73/23/EEC. Espaol Este producto cumple con las normas del Directivo Europeo 89/336/EEC & 73/23/EEC. Svenska Denna produkt har tillverkats i enlighet med EG-direktiv 89/336/EEC & 73/23/EEC.
Product Ecology Statements
The following information is provided to address worldwide product ecology concerns and regulations.

Disposal Considerations

This product contains the following materials that may be regulated upon disposal: lead solder on the printed wiring board assembly.

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 In the absence of a viable recycling option, products and their components must be disposed of in accordance with all applicable local environmental regulations.

Regulatory Compliance

Intel Desktop Boards D915GUX/D915GHA
Technical Product Specification
June 2004 Order Number: C74530-001
The Intel Desktop Board D915GUX/D915GHA 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 D915GUX/D915GHA Specification Update.

Revision History

Revision -001 Revision History First release of the Product Specification. Intel Desktop Board D915GUX/D915GHA Technical Date June 2004
This product specification applies to only standard Intel Desktop Boards D915GUX and D915GHA with BIOS identifier EV91510A.86A. Changes to this specification will be published in the Intel Desktop Board D915GUX/D915GHA Specification Update before being incorporated into a revision of this document.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTELS TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. INTEL PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS. Intel Corporation may have patents or pending patent applications, trademarks, copyrights, or other intellectual property rights that relate to the presented subject matter. The furnishing of documents and other materials and information does not provide any license, express or implied, by estoppel or otherwise, to any such patents, trademarks, copyrights, or other intellectual property rights. Intel may make changes to specifications and product descriptions at any time, without notice. Designers must not rely on the absence or characteristics of any features or instructions marked reserved or undefined. Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them. Intel desktop boards may contain design defects or errors known as errata, which may cause the product to deviate from published specifications. Current characterized errata are available on request. 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. Box 5937 Denver, CO 80217-9808 or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777, Germany 44-0-1793-421-333, other Countries 708-296-9333. Intel, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. * Other names and brands may be claimed as the property of others.

Preface

This Technical Product Specification (TPS) specifies the board layout, components, connectors, power and environmental requirements, and the BIOS for these Intel Desktop Boards: D915GUX and D915GHA. It describes the standard product and available manufacturing options.

Intended Audience

The TPS is intended to provide detailed, technical information about the Desktop Boards D915GUX and D915GHA and their components to the vendors, system integrators, and other engineers and technicians who need this level of information. It is specifically not intended for general audiences.

Channel A, DIMM 0 Channel A, DIMM 1 Channel B, DIMM 0 Channel B, DIMM 1

OM16667

Figure 3. Memory Channel and DIMM Configuration

1.5.1.1

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.

OM17123

Figure 4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs
Figure 5 shows a dual channel configuration using three DIMMs. In this example, the combined capacity of the two DIMMs in Channel A equal the capacity of the single DIMM in the DIMM0 (blue) socket of Channel B.

256 MB 256 MB 512 MB

OM17122
Figure 5. Dual Channel (Interleaved) Mode Configuration with Three DIMMs
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.
256 MB 512 MB 256 MB 512 MB

OM17124

Figure 6. Dual Channel (Interleaved) Mode Configuration with Four DIMMs

1.5.1.2

Single Channel (Asymmetric) Mode Configurations
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.

256 MB

OM17125
Figure 7. Single Channel (Asymmetric) Mode Configuration with One DIMM
Figure 8 shows a single channel configuration using three DIMMs. In this example, the combined capacity of the two DIMMs in Channel A does not equal the capacity of the single DIMM in the DIMM0 (blue) socket of Channel B.

256 MB 512 MB 512 MB

OM17126
Figure 8. Single Channel (Asymmetric) Mode Configuration with Three DIMMs

1.6 Intel 915G Chipset

The Intel 915G chipset consists of the following devices: Intel 82915G 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 MCH 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 boards I/O paths. The FWH provides the nonvolatile storage of the BIOS.
For information about The Intel 915G chipset Resources used by the chipset Refer to http://developer.intel.com/ Chapter 2
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.

For information about The location of the Parallel ATA IDE connector Refer to Figure 17, page 58

1.6.3.2

Serial ATA Interfaces
The ICH6s Serial ATA controller offers four independent Serial ATA ports with a theoretical maximum transfer rate of 150 MB/s per port. One device can be installed on each port for a maximum of four Serial ATA devices. A point-to-point interface is used for host to device connections, unlike Parallel ATA IDE which supports a master/slave configuration and two devices per channel. For compatibility, the underlying Serial ATA functionality is transparent to the operating system. The Serial ATA controller can operate in both legacy and native modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14 and 15). In Native mode, standard PCI Conventional bus resource steering is used. Native mode is the preferred mode for configurations using the Windows* XP and Windows 2000 operating systems.
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 The location of the Serial ATA IDE connectors Refer to Figure 17, page 58

1.6.3.3

SCSI Hard Drive Activity LED Connector (Optional)
The SCSI hard drive activity LED connector is a 1 x 2-pin connector that allows an add-in hard drive controller to use the same LED as the onboard IDE controller. For proper operation, this connector should be wired to the LED output of the add-in hard drive controller. The LED indicates when data is being read from, or written to, either the add-in hard drive controller or the onboard IDE controller (Parallel ATA or Serial ATA).
For information about The location of the SCSI hard drive activity LED connector The signal names of the SCSI hard drive activity LED connector
Refer to Figure 17, page 58 Table 25, page 61
Real-Time Clock, CMOS SRAM, and Battery
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When the computer is not plugged into a wall socket, the battery has an estimated life of three years. When the computer is plugged in, the standby current from the power supply extends the life of the battery. The clock is accurate to 13 minutes/year at 25 C with 3.3 VSB applied.

For information about The location of the front panel audio connector, the optional ATAPI CD-ROM connector, and the optional S/PDIF connector The signal names of the front panel audio connector The signal names of the optional ATAPI CD-ROM connector The signal names of the optional S/PDIF connector Refer to Figure 17, page 58 Table 20, page 60 Table 19, page 60 Table 18, page 60
Intel High Definition Audio Subsystem
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 9.
Front Panel Audio Connectors Back Panel Audio Connectors
Line Out/ Retasking Jack F [Port 2]
Mic In/ Retasking Jack E [Port 1]
Line In/ Retasking Jack C Line Out/ Retasking Jack D Mic In/ Retasking Jack B

OM16989

Figure 9. Front/Back Panel Audio Connector Options for High Definition Audio Subsystem
Figure 10 is a block diagram of the High Definition audio subsystem.
Mic In/Retasking Jack B Line In/Retasking Jack C 82801FB I/O Controller Hub (ICH6) Intel High Definition Audio Link ALC860 Audio Codec Line Out/Retasking Jack D Front Panel Mic In/Retasking Jack E [Port 1] Front Panel Line Out/Retasking Jack F [Port 2] CD-ROM (optional) S/PDIF (optional)

OM16990

Figure 10. High Definition Audio Subsystem Block Diagram
For information about The back panel audio connectors Refer to Figure 16, page 56

1.10 LAN Subsystem

The LAN subsystem consists of the following: Physical layer interface device. As a manufacturing option, the board includes one of the following Platform LAN Connect (PLC) devices: Intel 82562EZ PLC for 10/100 Mbits/sec Ethernet LAN connectivity Marvell Yukon 88E50 for Gigabit (10/100/1000 Mbits/sec) Ethernet LAN connectivity RJ-45 LAN connector with integrated status LEDs Additional features of the LAN subsystem include: CSMA/CD protocol engine LAN Connect Interface (LCI) between the 82562EZ and the ICH6 PCI Conventional bus power management Supports ACPI technology Supports LAN wake capabilities

1.10.1

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.

For information about The location of the fan connectors and sensors for thermal monitoring Refer to Figure 13, page 35

1.11.2

Thermal Monitoring
Figure 13 shows the location of the sensors and fan connectors.
Item A B C D E F Description

OM16659

Thermal diode, located on processor die Remote ambient temperature sensor Ambient temperature sensor, internal to hardware monitoring and fan control ASIC Processor fan Rear chassis fan Front chassis fan
Figure 13. Thermal Monitoring

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 The functions of the fan connectors Refer to Section 1.12.2.2, page 39

1.11.4

Chassis Intrusion and Detection
The boards support a chassis security feature that detects if the chassis cover is removed. The security feature uses a mechanical switch on the chassis that attaches to the chassis intrusion connector. When the chassis cover is removed, the mechanical switch is in the closed position.

1.12 Power Management

Power management is implemented at several levels, including: Software support through Advanced Configuration and Power Interface (ACPI) Hardware support: Power connector Fan connectors LAN wake capabilities Instantly Available PC technology Resume on Ring Wake from USB Wake from PS/2 devices Power Management Event signal (PME#) wake-up support

1.12.1

ACPI gives the operating system direct control over the power management and Plug and Play functions of a computer. The use of ACPI with these boards requires an operating system that provides full ACPI support. ACPI features include: Plug and Play (including bus and device enumeration) Power management control of individual devices, add-in boards (some add-in boards may require an ACPI-aware driver), video displays, and hard disk drives Methods for achieving less than 15-watt system operation in the power-on/standby sleeping state A Soft-off feature that enables the operating system to power-off the computer Support for multiple wake-up events (see Table 9 on page 38) Support for a front panel power and sleep mode switch Table 7 lists the system states based on how long the power switch is pressed, depending on how ACPI is configured with an ACPI-aware operating system.
Table 7. Effects of Pressing the Power Switch

1.12.1.2

Wake-up Devices and Events
Table 9 lists the devices or specific events that can wake the computer from specific states.

Table 9.

LAN Modem (back panel Serial Port A) PME# signal Power switch PS/2 devices RTC alarm USB WAKE#
from this state S1, S3, S4, S5 (Note) S1, S3 S1, S3, S4, S5 (Note) S1, S3, S4, S5 S1, S3 S1, S3, S4, S5 S1, S3 S1, S3, S4, S5
These devices/events can wake up the computer
For LAN and PME# signal, S5 is disabled by default in the BIOS Setup program. Setting this option to Power On will enable a wake-up event from LAN in the S5 state.
The use of these wake-up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events.

1.12.2

Hardware Support
Ensure that the power supply provides adequate +5 V standby current if LAN wake capabilities and Instantly Available PC technology features are used. 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. The boards provide several power management hardware features, including: Power connector Fan connectors LAN wake capabilities Instantly Available PC technology Resume on Ring Wake from USB Wake from PS/2 keyboard PME# signal wake-up support WAKE# signal wake-up support LAN wake capabilities and Instantly Available PC technology require power from the +5 V standby line.
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).
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. When an ACPI-enabled system receives the correct command, the power supply removes all non-standby voltages. When resuming from an AC power failure, the computer returns to the power state it was in before power was interrupted (on or off). The computers response can be set using the Last Power State feature in the BIOS Setup programs Boot menu.
For information about The location of the main power connector The signal names of the main power connector Refer to Figure 17, page 58 Table 27, page 62

1.13.6

Assuming Trusted Platform Module Ownership
Once the TPM has been enabled, ownership must be assumed by using the Infineon Security Platform Software. The owner/end user should follow the steps listed below to take ownership of the TPM: 1. Start the system. 2. Launch the Infineon Security Platform Initialization Wizard. 3. Create Owner password (before creating any password, review the Password Recommendations made earlier in this document). 4. Create a new Recovery Archive (note the file name and location). 5. Specify a Security Platform Emergency Recovery Token password and location. (this password should not match the Owner password or any other password). 6. Define where to save the Emergency Recovery Token (note the file location and name). 7. The software will then create recovery archive files and finalize ownership of the TPM. 8. After completing the Infineon Security Platform Initialization Wizard, the Emergency Recovery Token (SPEmRecToken.xml) must be moved to a removable media (floppy, CDR, flash media, etc) if the file was not saved to a removable media during installation. Once this is done, the removable media should be stored in a secure location. No copies of this Emergency Recovery Token file should remain on the system. If a copy remains on the system, it could be used to compromise the security of the platform. 9. Launch the Infineon Security Platform User Initialization Wizard. 10. Create a Basic User password (this password is the most frequently used and should not match any other password). 11. Select and configure Security Platform features for this user. 12. After completing the Infineon Security Platform User Initialization Wizard, a copy of the Emergency Recovery Archive (SPEmRecArchive.xml) should be copied to a removable media and stored in a secure location. This procedure should be repeated after any password changes or the addition of new users. 13. Restart the system. 14. To backup the keys for the EMBASSY Trust Suite, the Key Transfer Manager software must be configured. Launch the Key Transfer Manager from the program menu.

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. Start User Initialization Wizard. Select Recover Your Basic User Key when prompted. Specify the original Basic User Key password and proceed with the wizard. 7. When re-configuring the Personal Secure Drive, select I want to change my Personal Secure Drive setting, confirm the drive letter and name are correct, and then proceed through the rest of the wizard. 8. Restart the system when requested. 9. To restore access to the EMBASSY Trust Suite, right mouse click on the Key Transfer Manager icon located in the taskbar in the lower right corner of the screen, and select Restore TPM Keys. 10. Provide all the necessary passwords, files, and file locations as requested by the Key Transfer Manager. 11. Upon successful completion of all steps, you should be able to access previously encrypted files.

1.13.8

Clearing Trusted Platform Module Ownership
Disconnect the desktop board's power supply from its AC power source before you connect or disconnect cables, or install or remove any board components. Failure to do this can result in personal injury or equipment damage. Some circuitry on the desktop board can continue to operate even though the front panel power switch is off.
DATA ENCRYPTED BY ANY PROGRAM UTILIZING THE TPM WILL BECOME INACCESSIBLE IF TPM OWNERSHIP IS CLEARED. Recovery procedures may allow the migratable keys to be recovered and might restore access to encrypted data. (Review the Recovery Procedures for detailed instructions). The TPM may be cleared to transfer ownership of the platform to a new owner. 1. Observe precautions in the above WARNING then open the system case. 2. Move the configuration jumper on the board to pins 2-3. 3. Restore power to the PC and power on. 4. System should automatically enter BIOS setup. 5. Use the arrow keys to select Clear Trusted Platform Module, press <Enter>. 6. If you agree to the warning message select Ok and press <Enter>. 7. Press the <F10> key to save and exit, select Ok and press <Enter>. 8. Power off the system. 9. Review precautions in the WARNING above. 10. Restore the configuration jumper on the board to pins 1-2. When cleared, the TPM module is disabled by default.

1.13.9

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 For additional information about TPM and enhancing PC security, visit: https://www.trustedcomputinggroup.org/home

When using high wattage PCI Express x16 graphics cards, use one of the following power supply configurations to avoid system instability: The preferred method of power delivery is to use a power supply with a 2 x 12 main power cable. In this configuration, use two connectors to provide power to the board: The main power connector The ATX12V connector In this configuration, the alternate power connector is not required. The 2 x 12 main power cable can provide up to 144 W of power from the +12 V rail. An alternate method of power delivery is to use a power supply has a 2 x 10 main power cable. In this configuration, use three connectors to provide power to the board: The main power connector The ATX12V connector The alternate power connector

Main Power Connector

Signal Name +3.3 V +3.3 V Ground +5 V Ground +5 V Ground PWRGD (Power Good) +5 V (Standby) +12 V +12 V

(Note) (Note)

Table 27.

Pin 11 12

Pin 23 24
Signal Name +3.3 V -12 V Ground PS-ON# (power supply remote on/off) Ground Ground Ground No connect +5 V +5 V +5 V

2 x 12 connector detect

Ground
Note: When using a 2 x 10 power supply cable, this pin will be unconnected.

Table 28.

Pin 1 3

ATX12V Power Connector

Signal Name Ground +12 V Pin Signal Name Ground +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: One PCI Express x16 connector supporting simultaneous transfer speeds up to 8 GBytes/sec. One PCI Express x1 connector. The x1 interfaces 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). PCI Conventional bus add-in cards with SMBus support can access sensor data and other information residing on the Desktop Board. Note the following considerations for the PCI Conventional bus connectors: All of the PCI Conventional bus connectors are bus master capable. SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI Conventional bus add-in boards with SMBus support to access sensor data on the boards. The specific SMBus signals are as follows: The SMBus clock line is connected to pin A40. The SMBus data line is connected to pin A41.
The PCI Express x16 connector is configured to support only a PCI Express x1 link when the Intel GMA900 graphics controller is enabled.

2.8.2.3

Auxiliary Front Panel Power/Sleep LED Connector

Fan Connector Processor fan Front chassis fan Rear chassis fan

2.11.4

Power Supply Considerations
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 35 when selecting a power supply for use with the board. Additional power required will depend on configurations chosen by the integrator. The power supply must comply with the following recommendations found in the indicated sections of the ATX form factor specification. The potential relation between 3.3 VDC and +5 VDC power rails (Section 4.2) The current capability of the +5 VSB line (Section 4.2.1.2) All timing parameters (Section 4.2.1.3) All voltage tolerances (Section 4.2.2)
2.12 Thermal Considerations
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 24) to maintain required airflow across the processor voltage regulator area.

OM16996

Figure 24. Processor Heatsink Airflow
Failure to ensure appropriate airflow may result in reduced performance of both the processor and/or voltage regulator or, in some instances, damage to the board. For a list of chassis that have been tested with Intel desktop boards please refer to the following website: http://developer.intel.com/design/motherbd/cooling.htm 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.
Ensure that the ambient temperature does not exceed the boards maximum operating temperature. Failure to do so could cause components to exceed their maximum case temperature and malfunction. For information about the maximum operating temperature, see the environmental specifications in Section 2.14.
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 25) can reach a temperature of up to 85 oC in an open chassis. Figure 25 shows the locations of the localized high temperature zones.

Peripheral Selection and Configuration
The following techniques help improve system boot speed: Choose a hard drive with parameters such as power-up to data ready less than eight seconds, that minimize hard drive startup delays. Select a CD-ROM drive with a fast initialization rate. This rate can influence POST execution time. Eliminate unnecessary add-in adapter features, such as logo displays, screen repaints, or mode changes in POST. These features may add time to the boot process. Try different monitors. Some monitors initialize and communicate with the BIOS more quickly, which enables the system to boot more quickly.

Intel Rapid BIOS Boot

Use of the following BIOS Setup program settings reduces the POST execution time. In the Boot Menu: Set the hard disk drive as the first boot device. As a result, the POST does not first seek a diskette drive, which saves about one second from the POST execution time. Disable Quiet Boot, which eliminates display of the logo splash screen. This could save several seconds of painting complex graphic images and changing video modes. Enable Intel Rapid BIOS Boot. This feature bypasses memory count and the search for a diskette drive. In the Peripheral Configuration submenu, disable the LAN device if it will not be used. This can reduce up to four seconds of option ROM boot time.
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. This boot time may be so fast that some drives might be not be initialized at all. If this condition should occur, it is possible to introduce a programmable delay ranging from three to 30 seconds (using the Hard Disk Pre-Delay feature of the Advanced Menu in the Drive Configuration Submenu of the BIOS Setup program).
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. The user password gives restricted access to view and change Setup options in the BIOS Setup program. This is the user mode. If only the supervisor password is set, pressing the <Enter> key at the password prompt of the BIOS Setup program allows the user restricted access to Setup. If both the supervisor and user passwords are set, users can enter either the supervisor password or the user password to access Setup. Users have access to Setup respective to which password is entered. Setting the user password restricts who can boot the computer. The password prompt will be displayed before the computer is booted. If only the supervisor password is set, the computer boots without asking for a password. If both passwords are set, the user can enter either password to boot the computer. For enhanced security, use different passwords for the supervisor and user passwords. Valid password characters are A-Z, a-z, and 0-9. Passwords may be up to 16 characters in length. Table 45 shows the effects of setting the supervisor password and user password. This table is for reference only and is not displayed on the screen.

Code E0

Boot Block Recovery Code Checkpoints
Description of POST Operation Onboard Floppy Controller (if any) is initialized. Compressed recovery code is uncompressed in 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. Booting from floppy failed, look for ATAPI (LS-120, Zip) devices. Try to boot from ATAPI. If reading of boot sector is successful, give control to boot sector code. Booting from floppy and ATAPI device failed. Give two beeps. Retry the booting procedure again (go to check point E9).

E8 E9 EA EB EC EF

Table 49.
Code 08 0B 0C 0E 0F 1A 28 2A 2B 2C 2D 2E 2F 39 3A
Runtime Code Uncompressed in F000 Shadow RAM
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. CPU init and CPU data area init to be done. CMOS checksum calculation to be done next. Any initialization before keyboard BAT to be done next. KB controller I/B free. To issue the BAT command to keyboard controller. Any initialization after KB controller BAT to be done next. Keyboard command byte to be written. Going to issue Pin-23,24 blocking/unblocking command. Going to check pressing of <INS>, <END> key during power-on. To init CMOS if "Init CMOS in every boot" is set or <END> key is pressed. Going to disable DMA and Interrupt controllers. Video display is disabled and port-B is initialized. Chipset init about to begin. 8254 timer test about to start. About to start memory refresh test. Memory Refresh line is toggling. Going to check 15 s ON/OFF time. To read 8042 input port and disable Megakey GreenPC feature. Make BIOS code segment writeable. To do any setup before Int vector init. Interrupt vector initialization to begin. To clear password if necessary. Any initialization before setting video mode to be done. Going for monochrome mode and color mode setting. Different buses init (system, static, output devices) to start if present. (See Section 4.3 for details of different buses.) To give control for any setup required before optional video ROM check. To look for optional video ROM and give control. To give control to do any processing after video ROM returns control. If EGA/VGA not found then do display memory R/W test. EGA/VGA not found. Display memory R/W test about to begin. Display memory R/W test passed. About to look for the retrace checking. Display memory R/W test or retrace checking failed. To do alternate Display memory R/W test. Alternate Display memory R/W test passed. To look for the alternate display retrace checking. Video display checking over. Display mode to be set next. Display mode set. Going to display the power-on message. Different buses init (input, IPL, general devices) to start if present. (See Section 4.3 for details of different buses.) Display different buses initialization error messages. (See Section 4.3 for details of different buses.) New cursor position read and saved. To display the Hit <DEL> message. continued

Code 49 4B 4C 4D 4E 4F 7F 82 83
Runtime Code Uncompressed in F000 Shadow RAM (continued)
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. Going to check for memory wrap around at 0:0 and finding the total system memory size. Memory wrap around test done. Memory size calculation over. About to go for writing patterns to test memory. Pattern to be tested written in extended memory. Going to write patterns in base 640k memory. Patterns written in base memory. Going to find out amount of memory below 1M memory. Amount of memory below 1M found and verified. Going to find out amount of memory above 1M memory. Amount of memory above 1M found and verified. Check for soft reset and going to clear memory below 1M for soft reset. (If power on, go to check point # 4Eh). Memory below 1M cleared. (SOFT RESET) Going to clear memory above 1M. Memory above 1M cleared. (SOFT RESET) Going to save the memory size. (Go to check point # 52h). Memory test started. (NOT SOFT RESET) About to display the first 64k memory size. Memory size display started. This will be updated during memory test. Going for sequential and random memory test. Memory testing/initialization below 1M complete. Going to adjust displayed memory size for relocation/shadow. Memory size display adjusted due to relocation/ shadow. Memory test above 1M to follow. Memory testing/initialization above 1M complete. Going to save memory size information. Memory size information is saved. CPU registers are saved. Going to enter in real mode. Shutdown successful, CPU in real mode. Going to disable gate A20 line and disable parity/NMI. A20 address line, parity/NMI disable successful. Going to adjust memory size depending on relocation/shadow. Memory size adjusted for relocation/shadow. Going to clear Hit <DEL> message. Hit <DEL> message cleared. <WAIT.> message displayed. About to start DMA and interrupt controller test. DMA page register test passed. To do DMA#1 base register test. DMA#1 base register test passed. To do DMA#2 base register test. DMA#2 base register test passed. To program DMA unit 1 and 2. DMA unit 1 and 2 programming over. To initialize 8259 interrupt controller. Extended NMI sources enabling is in progress. Keyboard test started. Clearing output buffer, checking for stuck key, to issue keyboard reset command. Keyboard reset error/stuck key found. To issue keyboard controller interface test command. Keyboard controller interface test over. To write command byte and init circular buffer. Command byte written, global data init done. To check for lock-key. continued
Code 8B 8C 8D 8F 9A 9B 9C 9D 9E A2 A3 A4 A5 A7 A8 A9 AA AB AC AD