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Intel BLKD946GZABL Product Specification - Page 13

Table 2. Board Components Shown

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Table 2. Board Components Shown in Figure 1 Item/callout from Figure 1 Description A Front panel audio header B PCI Express x1 connector C PCI Express x16 connector D Back panel connectors E Processor core power connector F Rear chassis fan header G LGA775 processor socket H Intel 82946GZ GMCH I Processor fan header J DIMM Channel A socket K DIMM Channel B socket L Main Power connector M Diskette drive connector N Parallel ATE IDE connector O Battery P Front chassis fan header Q Chassis intrusion header R Auxiliary front panel power LED header S Front panel header T Serial ATA connectors [4] U Intel 82801GB I/O Controller Hub (ICH7) V Front panel USB headers [2] W PCI Conventional bus add-in card connectors [2] X Speaker Y BIOS Setup configuration jumper block Z High Definition Audio Link header Product Description 13

Section	Page
Intel® Desktop Board D946GZAB 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	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® 946GZ Express Chipset	21
1.5.1 Intel 946GZ Graphics Subsystem	21
1.5.2 USB	23
1.5.3 Serial ATA Interfaces	24
1.5.4 Parallel IDE Interface	25
1.5.5 Real-Time Clock, CMOS SRAM, and Battery	25
1.6 Legacy I/O Controller	26
1.6.1 Serial Port	26
1.6.2 Parallel Port	26
1.6.3 Diskette Drive Controller	26
1.6.4 Keyboard and Mouse Interface	26
1.7 Audio Subsystem	27
1.7.1 Audio Subsystem Software	28
1.7.2 Audio Connectors and Headers	28
1.8 LAN Subsystem	29
1.8.1 Intel® 82562GX PLC Device	29
1.8.2 LAN Subsystem Software	29
1.8.3 RJ-45 LAN Connector with Integrated LEDs	29
1.9 Hardware Management Subsystem	30
1.9.1 Hardware Monitoring and Fan Control	30
1.9.2 Fan Monitoring	30
1.9.3 Chassis Intrusion and Detection	30
1.9.4 Thermal Monitoring	31
1.10 Power Management	32
1.10.1 ACPI	32
1.10.2 Hardware Support	34
2 Technical Reference	39
2.1 Memory Map	39
2.1.1 Addressable Memory	39
2.2 DMA Channels	41
2.3 Fixed I/O Map	42
2.4 PCI Configuration Space Map	43
2.5 Interrupts	44
2.6 PCI Interrupt Routing Map	45
2.7 Connectors and Headers	46
2.7.1 Back Panel Connectors	47
2.7.2 Component-side Connectors and Headers	48
2.8 Jumper Block	56
2.9 Mechanical Considerations	57
2.9.1 Form Factor	57
2.9.2 I/O Shield	58
2.10 Electrical Considerations	59
2.10.1 DC Loading	59
2.10.2 Fan Header Current Capability	59
2.10.3 Add-in Board Considerations	60
2.10.4 Power Supply Considerations	60
2.11 Thermal Considerations	61
2.12 Reliability	63
2.13 Environmental	63
3 Overview of BIOS Features	65
3.1 Introduction	65
3.2 BIOS Flash Memory Organization	66
3.3 Resource Configuration	66
3.3.1 PCI Autoconfiguration	66
3.3.2 PCI IDE Support	67
3.4 System Management BIOS (SMBIOS)	67
3.5 Legacy USB Support	68
3.6 BIOS Updates	68
3.6.1 Language Support	69
3.6.2 Custom Splash Screen	69
3.7 BIOS Recovery	69
3.8 Boot Options	70
3.8.1 CD-ROM Boot	70
3.8.2 Network Boot	70
3.8.3 Booting Without Attached Devices	70
3.8.4 Changing the Default Boot Device During POST	70
3.9 Adjusting Boot Speed	71
3.9.1 Peripheral Selection and Configuration	71
3.9.2 BIOS Boot Optimizations	71
3.10 BIOS Security Features	72
4 Error Messages and Beep Codes	73
4.1 Speaker	73
4.2 BIOS Beep Codes	73
4.3 BIOS Error Messages	73
4.4 Port 80h POST Codes	74
5 Regulatory Compliance and Battery Disposal Information	79
5.1 Regulatory Compliance	79
5.1.1 Safety Regulations	79
5.1.2 European Union Declaration of Conformity Statement	79
5.1.3 Product Ecology Statements	82
5.1.4 EMC Regulations	85
5.1.5 Product Certification Markings (Board Level)	86