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Intel D915GMH Product Specification - Page 12

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Intel Desktop Board D915GMH Technical Product Specification 1.3 Overview 1.3.1 Feature Summary Table 1 summarizes the major features of the Desktop Board D915GMH. Table 1. Feature Summary Form Factor Processor Memory microBTX Form Factor (10.50 inches by 10.40 inches [266.70 millimeters by 264.16 millimeters]) Support for an Intel® Pentium® 4 processor in an LGA775 socket with an 800 or 533 MHz system bus • Four DDR SDRAM Dual Inline Memory Module (DIMM) sockets • Support for DDR 400 MHz and DDR 333 MHz DIMMs • Support for up to 4 GB of system memory Chipset Video I/O Control Intel® 915G Chipset, consisting of: • Intel® 82915G Graphics Memory Controller Hub (GMCH) • Intel® 82801FB I/O Controller Hub (ICH6) • 4 Mbit Firmware Hub (FWH) Intel® GMA900 onboard graphics subsystem LPC Bus I/O controller USB Peripheral Interfaces BIOS Instantly Available PC Technology Support for USB 2.0 devices • Eight USB ports • One serial port • One parallel port • Four Serial ATA interfaces • One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support • One diskette drive interface • PS/2* keyboard and mouse ports • Intel/AMI BIOS (resident in the 4 Mbit FWH) • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS • Support for PCI Local Bus Specification Revision 2.2 • Support for PCI Express Revision 1.0a • Suspend to RAM support • Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports continued 12

Section	Page
Intel® Desktop Board D915GMH Technical Product Specification	1
Revision History	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 Power Connector Terminology Change	11
1.3 Overview	12
1.3.1 Feature Summary	12
1.3.2 Manufacturing Options	13
1.3.3 Board Layout	14
1.3.4 Block Diagram	16
1.4 Online Support	17
1.5 Processor	17
1.6 System Memory	18
1.6.1 Memory Configurations	20
1.7 Intel® 915G Chipset	24
1.7.1 Intel 915G Graphics Subsystem	24
1.7.2 USB	26
1.7.3 IDE Support	26
1.7.4 Real-Time Clock, CMOS SRAM, and Battery	28
1.8 PCI Express Connectors	28
1.9 I/O Controller	29
1.9.1 Serial Port	29
1.9.2 Parallel Port	29
1.9.3 Diskette Drive Controller	29
1.9.4 Keyboard and Mouse Interface	30
1.10 Audio Subsystem	30
1.10.1 Audio Subsystem Software	31
1.10.2 Audio Connectors	31
1.10.3 8-Channel (7.1) Audio Subsystem	32
1.10.4 6-Channel (5.1) Audio Subsystem	34
1.11 LAN Subsystem	35
1.11.1 10/100 Mbits/sec LAN Subsystem	35
1.11.2 Gigabit LAN Subsystem	36
1.11.3 Alert Standard Format (ASF) Support	37
1.11.4 LAN Subsystem Software	38
1.12 Hardware Management Subsystem	38
1.12.1 Hardware Monitoring and Fan Control ASIC	38
1.12.2 Thermal Monitoring	39
1.12.3 Fan Monitoring	40
1.12.4 Chassis Intrusion and Detection	40
1.13 Power Management	40
1.13.1 ACPI	40
1.13.2 Hardware Support	42
1.14 Trusted Platform Module (Optional)	46
1.14.1 System Requirements	46
1.14.2 Warning of Potential Data Loss	46
1.14.3 Security Precautions	47
1.14.4 Trusted Platform Module Ownership	48
1.14.5 Enabling the Trusted Platform Module	49
1.14.6 Assuming Trusted Platform Module Ownership	49
1.14.7 Recovery Procedures	50
1.14.8 Clearing Trusted Platform Module Ownership	51
1.14.9 Software Support	52
2 Technical Reference	53
2.1 Introduction	53
2.2 Memory Resources	53
2.2.1 Addressable Memory	53
2.2.2 Memory Map	55
2.3 DMA Channels	55
2.4 Fixed I/O Map	56
2.5 PCI Configuration Space Map	57
2.6 Interrupts	58
2.7 PCI Conventional Interrupt Routing Map	59
2.8 Connectors	60
2.8.1 Back Panel Connectors	60
2.8.2 Component-side Connectors	64
2.9 Jumper Block	72
2.10 Mechanical Considerations	73
2.10.1 Form Factor	73
2.10.2 I/O Shield	74
2.11 Electrical Considerations	76
2.11.1 DC Loading	76
2.11.2 Add-in Board Considerations	76
2.11.3 Fan Connector Current Capability	76
2.11.4 Power Supply Considerations	77
2.12 Thermal Considerations	77
2.13 Reliability	79
2.14 Environmental	80
2.15 Regulatory Compliance	81
2.15.1 Safety Regulations	81
2.15.2 EMC Regulations	81
2.15.3 European Union Declaration of Conformity Statement	82
2.15.4 Product Ecology Statements	83
2.15.5 Product Certification Markings (Board Level)	84
3 Overview of BIOS Features	85
3.1 Introduction	85
3.2 BIOS Flash Memory Organization	86
3.3 Resource Configuration	86
3.3.1 PCI Autoconfiguration	86
3.3.2 PCI IDE Support	86
3.4 System Management BIOS (SMBIOS)	87
3.5 Legacy USB Support	87
3.6 BIOS Updates	88
3.6.1 Language Support	88
3.6.2 Custom Splash Screen	88
3.7 Boot Options	89
3.7.1 CD-ROM Boot	89
3.7.2 Network Boot	89
3.7.3 Booting Without Attached Devices	89
3.7.4 Changing the Default Boot Device During POST	89
3.8 Fast Booting Systems with Intel® Rapid BIOS Boot	90
3.8.1 Peripheral Selection and Configuration	90
3.8.2 Intel® Rapid BIOS Boot Raid BIOS Boot	90
3.9 BIOS Security Features	91
4 Error Messages and Beep Codes	93
4.1 BIOS Error Messages	93
4.2 Port 80h POST Codes	95
4.3 Bus Initialization Checkpoints	99
4.4 Speaker	100