Intel Desktop Board D945GCNL Technical Product Specification
Intel Desktop Board D945GCNL Technical Product Specification
vi
2.5 Interrupts ...................................................................................... 42
2.6 PCI Conventional Interrupt Routing Map ............................................. 43
2.7 Connectors and Headers................................................................... 44
2.7.1 Back Panel Connectors .......................................................... 45
2.7.2 Component-side Connectors and Headers ................................ 46
2.8 Jumper Block .................................................................................. 54
2.9 Mechanical Considerations ................................................................ 56
2.9.1 Form Factor......................................................................... 56
2.10 Electrical Considerations................................................................... 57
2.10.1 Power Supply Considerations ................................................. 57
2.10.2 Fan Header Current Capability................................................ 58
2.10.3 Add-in Board Considerations .................................................. 58
2.11 Thermal Considerations.................................................................... 59
2.12 Reliability ....................................................................................... 61
2.13 Environmental ................................................................................ 61
3 Overview of BIOS Features
3.1 Introduction ................................................................................... 63
3.2 BIOS Flash Memory Organization....................................................... 64
3.3 Resource Configuration .................................................................... 64
3.3.1 PCI Autoconfiguration ........................................................... 64
3.3.2 PCI IDE Support................................................................... 65
3.4 System Management BIOS (SMBIOS)................................................. 65
3.5 BIOS Updates ................................................................................. 66
3.5.1 Language Support ................................................................ 66
3.5.2 Custom Splash Screen .......................................................... 66
3.6 Legacy USB Support ........................................................................ 67
3.7 Boot Options................................................................................... 67
3.7.1 CD-ROM Boot ...................................................................... 67
3.7.2 Network Boot....................................................................... 67
3.7.3 Booting Without Attached Devices........................................... 68
3.7.4 Changing the Default Boot Device During POST ........................ 68
3.8 Adjusting Boot Speed....................................................................... 69
3.8.1 Peripheral Selection and Configuration..................................... 69
3.8.2 BIOS Boot Optimizations ....................................................... 69
3.9 BIOS Security Features .................................................................... 70
4 Error Messages and Beep Codes
4.1 Speaker ......................................................................................... 71
4.2 BIOS Beep Codes ............................................................................ 71
4.3 BIOS Error Messages ....................................................................... 71
4.4 Port 80h POST Codes ....................................................................... 72










