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Intel D975XBX2 Product Specification - Page 66

Front Panel Header

UPC - 735858186179

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Intel Desktop Board D975XBX2 Technical Product Specification 2.7.2.4 Front Panel Header This section describes the functions of the front panel header. Table 29 lists the signal names of the front panel header. Figure 21 is a connection diagram for the front panel header. Table 29. Front Panel Header Pin Signal In/ Description Pin Out Hard Drive Activity LED [Orange] 1 HD_PWR Out Hard disk LED pull-up 2 to +5 V 3 HAD# Out Hard disk active LED 4 Reset Switch [Blue] 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/ Out Description Power LED [Green] HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch [Red] FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected Dualcolored Power LED - + N/C Power Switch Singlecolored Power LED + - 9 87 65 43 21 +5 V DC Reset Switch - Hard Drive Activity LED + OM18331 Figure 21. Connection Diagram for Front Panel Header 66

Section	Page
Intel® Desktop Board D975XBX2 Technical Product Specification	1
Revision History / Disclaimer	2
Preface	3
Intended Audience	3
What This Document Contains	3
Typographical Conventions	3
Contents	5
1 Product Description	11
1.1 Overview	12
1.1.1 Feature Summary	12
1.1.2 Manufacturing Options	13
1.1.3 Board Layout	14
1.1.4 Block Diagram	16
1.2 Online Support	17
1.3 Processor	17
1.4 System Memory	18
1.4.1 Memory Configurations	20
1.5 Intel® 975X Chipset	24
1.5.1 USB	24
1.5.2 IDE Support	25
1.5.3 Real-Time Clock, CMOS SRAM, and Battery	26
1.6 Discrete Serial ATA Interface (Optional)	27
1.6.1 Serial ATA Controller	27
1.6.2 External Serial ATA Support	27
1.7 PCI Express Connectors	28
1.8 IEEE-1394a Connectors (Optional)	29
1.9 Legacy I/O Controller	29
1.9.1 Serial Port	29
1.9.2 Parallel Port	30
1.9.3 Diskette Drive Controller	30
1.9.4 Keyboard and Mouse Interface	30
1.10 Audio Subsystem	31
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	33
1.11 LAN Subsystem	34
1.11.1 Intel® 82573E/82573L Gigabit Ethernet Controller	34
1.11.2 RJ-45 LAN Connector with Integrated LEDs	34
1.11.3 Alert Standard Format (ASF) Support	35
1.11.4 Intel® Active Management Technology (Optional)	35
1.11.5 LAN Subsystem Software	37
1.12 Hardware Management Subsystem	37
1.12.1 Hardware Monitoring and Fan Control ASIC	37
1.12.2 Thermal Monitoring	38
1.12.3 Fan Monitoring	39
1.12.4 Chassis Intrusion and Detection	39
1.13 Power Management	39
1.13.1 ACPI	39
1.13.2 Hardware Support	42
1.14 Onboard Power Button	46
1.15 Onboard LEDs	47
1.16 Trusted Platform Module (Optional)	48
2 Technical Reference	49
2.1 Memory Resources	49
2.1.1 Addressable Memory	49
2.1.2 Memory Map	51
2.2 DMA Channels	51
2.3 Fixed I/O Map	52
2.4 PCI Configuration Space Map	53
2.5 Interrupts	54
2.6 PCI Conventional Interrupt Routing Map	55
2.7 Connectors	56
2.7.1 Back Panel Connectors	56
2.7.2 Component-side Connectors and Headers	59
2.8 Jumper Block	70
2.9 Mechanical Considerations	71
2.9.1 Form Factor	71
2.9.2 I/O Shield	72
2.10 Electrical Considerations	74
2.10.1 DC Loading	74
2.10.2 Add-in Board Considerations	74
2.10.3 Fan Header Current Capability	75
2.10.4 Power Supply Considerations	75
2.11 Thermal Considerations	76
2.12 Reliability	78
2.13 Environmental	79
3 Overview of BIOS Features	81
3.1 Introduction	81
3.2 Resource Configuration	82
3.2.1 PCI Autoconfiguration	82
3.2.2 PCI IDE Support	82
3.3 System Management BIOS (SMBIOS)	83
3.4 Watchdog Timer	83
3.5 Legacy USB Support	84
3.6 BIOS Updates	84
3.6.1 Language Support	85
3.6.2 Custom Splash Screen	85
3.7 Boot Options	85
3.7.1 CD-ROM Boot	85
3.7.2 Network Boot	85
3.7.3 Booting Without Attached Devices	86
3.7.4 Changing the Default Boot Device During POST	86
3.8 BIOS Security Features	87
4 Error Messages and Beep Codes	89
4.1 Speaker	89
4.2 BIOS Beep Codes	89
4.3 BIOS Error Messages	89
4.4 Port 80h POST Codes	90
5 Regulatory Compliance and Battery Disposal Information	95
5.1 Regulatory Compliance	95
5.1.1 Safety Regulations	95
5.1.2 European Union Declaration of Conformity Statement	95
5.1.3 Product Ecology Statements	97
5.1.4 EMC Regulations	101
5.1.5 Product Certification Markings (Board Level)	102