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Intel BOXD845BGSE Product Specification - Page 12

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UPC - 735858150767

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Intel Desktop Board D845BG/D845PT Technical Product Specification 1.2 Overview 1.2.1 Feature Summary Table 2 summarizes the D845BG and D845PT boards' major features. Table 2. Feature Summary Form Factor Processor Memory D845BG: ATX (12.00 inches by 8.20 inches) D845PT: microATX (9.60 inches by 8.20 inches) • Support for an Intel® Pentium® 4 processor in a µPGA478 socket • 400 MHz system bus • Two 184-pin DDR SDRAM Dual Inline Memory Module (DIMM) sockets • Support for single-sided or double-sided DIMMs (DDR 200 and DDR 266) • Support for up to 2 GB system memory NOTE: The D845BG/D845PT boards have been designed to support DIMMs based on 512 Mbit technology for a maximum onboard capacity of up to 2 GB, but this technology has not been validated on this board. Please refer to the following Intel web sites. For the D845BG board: http://developer.intel.com/design/motherbd/bg/bg_mem.htm Chipset Audio Video I/O Control Peripheral Interfaces Expansion Capabilities Hardware Monitor Subsystem For the D845PT board: http://developer.intel.com/design/motherbd/pt/pt_mem.htm Intel® 845 Chipset, consisting of: • Intel® 82845 Memory Controller Hub (MCH) • Intel® 82801BA I/O Controller Hub (ICH2) • Intel® 82802AB 4 Mbit Firmware Hub (FWH) Audio subsystem for AC '97 processing using the Analog Devices AD1885 codec AGP connector supporting 1.5 V 4X AGP cards SMSC LPC47M142 LPC Bus I/O controller • Up to seven USB ports • Two serial ports • One parallel port • Two IDE interfaces with UDMA 33, ATA-66/100 support • One diskette drive interface • PS/2† keyboard and mouse ports • Three fan connectors • D845BG: Six PCI bus add-in card connectors (SMBus routed to PCI bus connector 1) • D845PT: Three PCI bus add-in card connectors (SMBus routed to PCI bus connector 1) • Voltage sense to detect out of range power supply voltages • Thermal sense to detect out of range thermal values • Two fan sense inputs used to monitor fan activity continued 12

Section	Page
Intel® Desktop Board D845BG/D845PT 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	11
1.1 Board Differences	11
1.2 Overview	12
1.2.1 Feature Summary	12
1.2.2 Manufacturing Options	13
1.2.3 Board Layouts	14
1.2.4 Block Diagram	16
1.3 Online Support	18
1.4 Operating System Support	18
1.5 Design Specifications	19
1.6 Processor	22
1.7 System Memory	23
1.8 Intel® 845 Chipset	25
1.8.1 AGP	26
1.8.2 USB	27
1.8.3 IDE Support	29
1.8.4 Real-Time Clock, CMOS SRAM, and Battery	30
1.8.5 Intel® 82802AB 4 Mbit Firmware Hub (FWH)	30
1.9 I/O Controller	30
1.9.1 Serial Ports	31
1.9.2 Parallel Port	31
1.9.3 Diskette Drive Controller	32
1.9.4 Keyboard and Mouse Interface	32
1.10 Audio Subsystem	33
1.10.1 Audio Connectors	34
1.10.2 Audio Subsystem Software	34
1.11 LAN Subsystem (Optional)	35
1.11.1 Intel® 82562ET Platform LAN Connect Device	35
1.11.2 RJ-45 LAN Connector with Integrated LEDs	35
1.11.3 LAN Subsystem Software	36
1.12 CNR (Optional)	36
1.13 Hardware Management Subsystem	37
1.13.1 Hardware Monitor Component	37
1.13.2 Fan Monitoring	37
1.13.3 Chassis Intrusion and Detection	38
1.14 Power Management	38
1.14.1 ACPI	38
1.14.2 Hardware Support	42
2 Technical Reference	47
2.1 Introduction	47
2.2 Memory Map	47
2.3 I/O Map	48
2.4 DMA Channels	50
2.5 PCI Configuration Space Map	50
2.6 Interrupts	51
2.7 PCI Interrupt Routing Map	52
2.8 Connectors	54
2.8.1 Back Panel Connectors	55
2.8.2 Internal I/O Connectors	58
2.8.3 External I/O Connectors	71
2.9 Jumper Blocks	75
2.9.1 Front Panel Audio Connector/Jumper Block	75
2.9.2 BIOS Setup Configuration Jumper Block	76
2.10 Mechanical Considerations	77
2.10.1 D845BG Form Factor	77
2.10.2 D845PT Form Factor	78
2.10.3 I/O Shield	79
2.11 Electrical Considerations	82
2.11.1 Power Consumption	82
2.11.2 Add-in Board Considerations	82
2.11.3 Standby Current Requirements	83
2.11.4 Fan Connector Current Capability	84
2.11.5 Power Supply Considerations	84
2.12 Thermal Considerations	85
2.13 Reliability	87
2.14 Environmental	87
2.15 Regulatory Compliance	88
2.15.1 Safety Regulations	88
2.15.2 EMC Regulations	88
2.15.3 Product Certification Markings (Board Level)	89
3 Overview of BIOS Features	91
3.1 Introduction	91
3.2 BIOS Flash Memory Organization	92
3.3 Resource Configuration	92
3.3.1 PCI Autoconfiguration	92
3.3.2 PCI IDE Support	92
3.4 System Management BIOS (SMBIOS)	93
3.5 Legacy USB Support	93
3.6 BIOS Updates	94
3.6.1 Language Support	95
3.6.2 Custom Splash Screen	95
3.7 Recovering BIOS Data	95
3.8 Boot Options	96
3.8.1 CD-ROM and Network Boot	96
3.8.2 Booting Without Attached Devices	96
3.9 Fast Booting Systems with Intel Rapid BIOS Boot	96
3.9.1 Peripheral Selection and Configuration	96
3.9.2 Intel Rapid BIOS Boot	97
3.10 BIOS Security Features	98
4 BIOS Setup Program	99
4.1 Introduction	99
4.2 Maintenance Menu	100
4.2.1 Extended Configuration Submenu	101
4.3 Main Menu	102
4.4 Advanced Menu	103
4.4.1 PCI Configuration Submenu	104
4.4.2 Boot Configuration Submenu	105
4.4.3 Peripheral Configuration Submenu	106
4.4.4 IDE Configuration Submenu	108
4.4.5 Diskette Configuration Submenu	111
4.4.6 Event Log Configuration Submenu	112
4.4.7 Video Configuration Submenu	113
4.5 Security Menu	114
4.6 Power Menu	115
4.6.1 ACPI Submenu	116
4.7 Boot Menu	117
4.7.1 Boot Device Priority Submenu	118
4.7.2 Hard Disk Drives Submenu	119
4.7.3 Removable Devices Submenu	119
4.7.4 ATAPI CD-ROM Drives Submenu	120
4.8 Exit Menu	120
5 Error Messages and Beep Codes	121
5.1 BIOS Error Messages	121
5.2 Port 80h POST Codes	123
5.3 Bus Initialization Checkpoints	127
5.4 Speaker	128

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Intel Desktop Board D845BG/D845PT Technical Product Specification

1.2 Overview

1.2.1

Feature Summary

Table 2

summarizes the D845BG and D845PT boards

’

major features.

Table 2.

Feature Summary

Form Factor

D845BG:

ATX (12.00 inches by 8.20 inches)

D845PT:

microATX (9.60 inches by 8.20 inches)

Processor

•

Support for an Intel

Pentium

4 processor in a

PGA478 socket

•

400 MHz system bus

Memory

•

Two 184-pin DDR SDRAM Dual Inline Memory Module (DIMM) sockets

•

Support for single-sided or double-sided DIMMs (DDR 200 and DDR 266)

•

Support for up to 2 GB system memory

NOTE:

The D845BG/D845PT boards have been designed to support DIMMs based

on 512 Mbit technology for a maximum onboard capacity of up to 2 GB, but

this technology has not been validated on this board.

Please refer to the

following Intel web sites.

For the D845BG board:

http://developer.intel.com/design/motherbd/bg/bg_mem.htm

For the D845PT board:

http://developer.intel.com/design/motherbd/pt/pt_mem.htm

Chipset

Intel

845 Chipset, consisting of:

•

Intel

82845 Memory Controller Hub (MCH)

•

Intel

82801BA I/O Controller Hub (ICH2)

•

Intel

82802AB 4 Mbit Firmware Hub (FWH)

Audio

Audio subsystem for AC

‘

97 processing using the Analog Devices AD1885 codec

Video

AGP connector supporting 1.5 V 4X AGP cards

I/O Control

SMSC LPC47M142 LPC Bus I/O controller

Peripheral

Interfaces

•

Up to seven USB ports

•

Two serial ports

•

One parallel port

•

Two IDE interfaces with UDMA 33, ATA-66/100 support

•

One diskette drive interface

•

PS/2

†

keyboard and mouse ports

•

Three fan connectors

Expansion

Capabilities

•

D845BG:

Six PCI bus add-in card connectors (SMBus routed to PCI bus

connector 1)

•

D845PT:

Three PCI bus add-in card connectors (SMBus routed to PCI bus

connector 1)

Hardware Monitor

Subsystem

•

Voltage sense to detect out of range power supply voltages

•

Thermal sense to detect out of range thermal values

•

Two fan sense inputs used to monitor fan activity

continued