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BIOS Flash Memory Organization, Resource Configuration

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Intel Desktop Board D865GSA 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 passwords and displays processor information Displays processor and memory configuration Configures advanced features available through the chipset Sets Configures Selects boot Saves or passwords power options discards and security manage- changes to features ment Setup features and program power options supply controls Table 43 lists the function keys available for menu screens. Table 43. BIOS Setup Program Function Keys BIOS Setup Program Function Key Description or or 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 4 Mbit (512 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. 78

Section	Page
Intel® Desktop Board D865GSA Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Notes, Cautions, and Warnings	3
Other Common Notation	4
Contents	5
1 Product Description	9
1.1 Overview	10
1.1.1 Feature Summary	10
1.1.2 Board Layout	12
1.1.3 Block Diagram	14
1.2 Online Support	15
1.3 Processor	15
1.4 System Memory	16
1.4.1 Memory Configurations	18
1.5 Intel® 865G Chipset	21
1.5.1 Intel 865G Graphics Subsystem	21
1.5.2 Universal 0.8 V / 1.5 V AGP 3.0 Connector	29
1.5.3 USB	30
1.5.4 IDE Support	30
1.5.5 Real-Time Clock, CMOS SRAM, and Battery	32
1.6 Legacy I/O Controller	36
1.6.1 Serial Port	36
1.6.2 Parallel Port	36
1.6.3 Diskette Drive Controller	36
1.6.4 Keyboard and Mouse Interface	37
1.7 Audio Subsystem	37
1.7.1 Audio Subsystem Software	37
1.7.2 Audio Connectors	37
1.8 LAN Subsystem	38
1.8.2 LAN Subsystem Software	38
1.9 Hardware Management Subsystem	39
1.9.1 Hardware Monitoring and Fan Control	39
1.9.2 Fan Monitoring	39
1.9.3 Chassis Intrusion and Detection	39
1.9.4 Thermal Monitoring	40
1.10 Power Management	41
1.10.1 ACPI	41
1.10.2 Hardware Support	43
2 Technical Reference	47
2.1 Memory Map	47
2.2 Fixed I/O Map	48
2.3 PCI Configuration Space Map	49
2.4 Interrupts	50
2.5 DMA Channels	51
2.6 PCI Interrupt Routing Map	51
2.7 Connectors	52
2.7.1 Back Panel Connectors	53
2.7.2 Component-side Connectors	54
2.8 Jumper Block	61
2.9 Mechanical Considerations	62
2.9.1 Form Factor	62
2.9.2 I/O Shield	63
2.10 Electrical Considerations	64
2.10.1 DC Loading	64
2.10.2 Fan Connector Current Capability	64
2.10.3 Add-in Board Considerations	64
2.10.4 Power Supply Considerations	65
2.11 Thermal Considerations	66
2.12 Reliability	68
2.13 Environmental	69
2.14 Regulatory Compliance	70
2.14.1 Safety Regulations	70
2.14.2 European Union Declaration of Conformity Statement	70
2.14.3 Product Ecology Statements	72
2.14.4 EMC Regulations	75
2.14.5 Product Certification Markings (Board Level)	76
3 Overview of BIOS Features	77
3.1 Introduction	77
3.2 BIOS Flash Memory Organization	78
3.3 Resource Configuration	78
3.3.1 PCI Autoconfiguration	78
3.3.2 PCI IDE Support	79
3.4 System Management BIOS (SMBIOS)	79
3.5 Legacy USB Support	80
3.6 BIOS Updates	80
3.6.1 Language Support	81
3.6.2 Custom Splash Screen	81
3.7 Boot Options	81
3.7.1 CD-ROM Boot	81
3.7.2 Network Boot	81
3.7.3 Booting Without Attached Devices	82
3.7.4 Changing the Default Boot Device During POST	82
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot	82
3.8.1 Peripheral Selection and Configuration	82
3.8.2 Intel Rapid BIOS Boot	83
3.9 BIOS Security Features	84
4 Error Messages and Beep Codes	85
4.1 BIOS Error Messages	85
4.2 Port 80h POST Codes	86
4.3 Bus Initialization Checkpoints	91
4.4 Speaker	92

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Intel Desktop Board D865GSA 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

passwords and

displays

processor

information

Displays

processor

and

memory

configura-

tion

Configures

advanced

features

available

through the

chipset

Sets

passwords

and security

features

Configures

power

manage-

ment

features and

power

supply

controls

Selects boot

options

Saves or

discards

changes to

Setup

program

options

Table 43 lists the function keys available for menu screens.

Table 43. 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 4 Mbit (512 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.