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Intel D925XECV2 Product Specification - Page 96

BIOS Flash Memory Organization, 3 Resource Configuration

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Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification Table 44 lists the BIOS Setup program menu features. Table 44. BIOS Setup Program Menu Bar Maintenance Main Advanced Security Clears passwords and displays processor information Displays processor and memory configuration Configures advanced features available through the chipset Sets passwords and security features Power Boot Configures power management features and power supply controls Selects boot options Exit Saves or discards changes to Setup program options Table 45 lists the function keys available for menu screens. Table 45. BIOS Setup Program Function Keys BIOS Setup Program Function Key or or Description Selects a different menu screen (Moves the cursor left or right) Selects an item (Moves the cursor up or down) Selects a field (Not implemented) Executes command or selects the submenu Load the default configuration values for the current menu Save the current values and exits the BIOS Setup program Exits the menu 3.2 BIOS Flash Memory Organization The Firmware Hub (FWH) includes a 8 Mbit (1024 KB) symmetrical flash memory device. 3.3 Resource Configuration 3.3.1 PCI Autoconfiguration The BIOS can automatically configure PCI devices. PCI devices may be onboard or add-in cards. Autoconfiguration lets a user insert or remove PCI cards without having to configure the system. When a user turns on the system after adding a PCI card, the BIOS automatically configures interrupts, the I/O space, and other system resources. Any interrupts set to Available in Setup are considered to be available for use by the add-in card. 3.3.2 PCI IDE Support If you select Auto in the BIOS Setup program, the BIOS automatically sets up the PCI IDE connector with independent I/O channel support. The IDE interface supports hard drives up to ATA-66/100 and recognizes any ATAPI compliant devices, including CD-ROM drives, tape drives, and Ultra DMA drives. The BIOS determines the capabilities of each drive and configures them to optimize capacity and performance. To take advantage of the high capacities typically available today, hard drives are automatically configured for Logical Block Addressing (LBA) and 96

Section	Page
Intel® Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Other Common Notation	4
Contents	5
1 Product Description	11
1.1 PCI Bus Terminology Change	11
1.2 Board Differences	11
1.3 Overview	12
1.3.1 Feature Summary	12
1.3.2 Manufacturing Options	13
1.3.3 Board Layouts	14
1.3.4 Block Diagram	18
1.4 Online Support	19
1.5 Processor	19
1.6 System Memory	20
1.6.1 Memory Configurations	21
1.7 Intel® 925XE Chipset	25
1.7.1 USB	25
1.7.2 IDE Support	25
1.7.3 Real-Time Clock, CMOS SRAM, and Battery	28
1.8 PCI Express Connectors	28
1.9 Auxiliary Power (AUX PWR) Output Connector	28
1.10 I/O Controller	29
1.10.1 Serial Port	29
1.10.2 Parallel Port	29
1.10.3 Diskette Drive Controller	30
1.10.4 Keyboard and Mouse Interface	30
1.11 Audio Subsystem	31
1.11.1 Audio Subsystem Software	31
1.11.2 Audio Connectors	31
1.11.3 8-Channel (7.1) Audio Subsystem	32
1.11.4 6-Channel (5.1) Audio Subsystem	34
1.12 LAN Subsystem	35
1.12.1 Marvell Yukon 88E8050 PCI Express 1.0a Integrated MAC/PHY Gigabit Ethernet Controller	35
1.12.2 RJ-45 LAN Connector with Integrated LEDs	35
1.12.3 Alert Standard Format (ASF) Support	36
1.12.4 LAN Subsystem Software	36
1.13 Hardware Management Subsystem	37
1.13.1 Hardware Monitoring and Fan Control ASIC	37
1.13.2 Thermal Monitoring	38
1.13.3 Fan Monitoring	40
1.13.4 Chassis Intrusion and Detection	40
1.14 Power Management	40
1.14.1 ACPI	40
1.14.2 Hardware Support	43
1.15 Trusted Platform Module (Optional)	47
1.15.1 System Requirements	47
1.15.2 Warning of Potential Data Loss	47
1.15.3 Security Precautions	48
1.15.4 Trusted Platform Module Ownership	49
1.15.5 Enabling the Trusted Platform Module	50
1.15.6 Assuming Trusted Platform Module Ownership	50
1.15.7 Recovery Procedures	51
1.15.8 Clearing Trusted Platform Module Ownership	52
1.15.9 Software Support	53
2 Technical Reference	55
2.1 Introduction	55
2.2 Memory Resources	55
2.2.1 Addressable Memory	55
2.2.2 Memory Map	57
2.3 DMA Channels	57
2.4 Fixed I/O Map	58
2.5 PCI Configuration Space Map	59
2.6 Interrupts	60
2.7 PCI Conventional Interrupt Routing Map	61
2.8 Connectors	63
2.8.1 Back Panel Connectors	63
2.8.2 Component-side Connectors	68
2.9 Jumper Block	80
2.10 Mechanical Considerations	81
2.10.1 D925XECV2 Form Factor	81
2.10.2 D925XEBC2 Form Factor	82
2.10.3 I/O Shield	83
2.11 Electrical Considerations	85
2.11.1 DC Loading	85
2.11.2 Add-in Board Considerations	85
2.11.3 Fan Connector Current Capability	86
2.11.4 Power Supply Considerations	86
2.12 Thermal Considerations	87
2.13 Reliability	89
2.14 Environmental	90
2.15 Regulatory Compliance	91
2.15.1 Safety Regulations	91
2.15.2 EMC Regulations	91
2.15.3 European Union Declaration of Conformity Statement	92
2.15.4 Product Ecology Statements	93
2.15.5 Product Certification Markings (Board Level)	94
3 Overview of BIOS Features	95
3.1 Introduction	95
3.2 BIOS Flash Memory Organization	96
3.3 Resource Configuration	96
3.3.1 PCI Autoconfiguration	96
3.3.2 PCI IDE Support	96
3.4 System Management BIOS (SMBIOS)	97
3.5 Legacy USB Support	97
3.6 BIOS Updates	98
3.6.1 Language Support	98
3.6.2 Custom Splash Screen	98
3.7 Boot Options	99
3.7.1 CD-ROM Boot	99
3.7.2 Network Boot	99
3.7.3 Booting Without Attached Devices	99
3.7.4 Changing the Default Boot Device During POST	99
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot	100
3.8.1 Peripheral Selection and Configuration	100
3.8.2 Intel Rapid BIOS Boot	100
3.9 BIOS Security Features	101
4 Error Messages and Beep Codes	103
4.1 BIOS Error Messages	103
4.2 Port 80h POST Codes	105
4.3 Bus Initialization Checkpoints	109
4.4 Speaker	110

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Intel Desktop Boards D925XECV2/D925XEBC2 Technical Product Specification

Table 44 lists the BIOS Setup program menu features.

Table 44.

BIOS Setup Program Menu Bar

Maintenance

Main

Advanced

Security

Power

Boot

Exit

Clears

passwords and

displays

processor

information

Displays

processor

and memory

configuration

Configures

advanced

features

available

through the

chipset

Sets

passwords

and security

features

Configures

power

management

features and

power supply

controls

Selects boot

options

Saves or

discards

changes to

Setup

program

options

Table 45 lists the function keys available for menu screens.

Table 45.

BIOS Setup Program Function Keys

BIOS Setup Program Function Key

Description

←

> or <

→

Selects a different menu screen (Moves the cursor left or right)

↑

> or <

↓

Selects an item (Moves the cursor up or down)

<Tab>

Selects a field (Not implemented)

<Enter>

Executes command or selects the submenu

<F9>

Load the default configuration values for the current menu

<F10>

Save the current values and exits the BIOS Setup program

<Esc>

Exits the menu

3.2 BIOS Flash Memory Organization

The Firmware Hub (FWH) includes a 8 Mbit (1024 KB) symmetrical flash memory device.

3.3 Resource Configuration

3.3.1

PCI Autoconfiguration

The BIOS can automatically configure PCI devices.

PCI devices may be onboard or add-in cards.

Autoconfiguration lets a user insert or remove PCI cards without having to configure the system.

When a user turns on the system after adding a PCI card, the BIOS automatically configures

interrupts, the I/O space, and other system resources.

Any interrupts set to Available in Setup are

considered to be available for use by the add-in card.

3.3.2

PCI IDE Support

If you select Auto in the BIOS Setup program, the BIOS automatically sets up the

PCI IDE connector with independent I/O channel support.

The IDE interface supports hard drives

up to ATA-66/100 and recognizes any ATAPI compliant devices, including CD-ROM drives, tape

drives, and Ultra DMA drives.

The BIOS determines the capabilities of each drive and configures

them to optimize capacity and performance.

To take advantage of the high capacities typically

available today, hard drives are automatically configured for Logical Block Addressing (LBA) and