Intel Desktop Board D845PEBT2 Technical Product Specification
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2 Technical Reference
2.1 Introduction.................................................................................................................45
2.2 Memory Map ..............................................................................................................45
2.3 Fixed I/O Map.............................................................................................................46
2.4 DMA Channels ...........................................................................................................47
2.5 PCI Configuration Space Map ....................................................................................47
2.6 Interrupts ....................................................................................................................48
2.7 PCI Interrupt Routing Map..........................................................................................49
2.8 Connectors.................................................................................................................51
2.8.1 Back Panel Connectors................................................................................52
2.8.2 Internal I/O Connectors ................................................................................56
2.8.3 External I/O Connectors...............................................................................68
2.9 Jumper Blocks............................................................................................................72
2.9.1 Front Panel Audio Connector/Jumper Block.................................................72
2.9.2 BIOS Setup Configuration Jumper Block......................................................73
2.10 Mechanical Considerations.........................................................................................74
2.10.1 D845PEBT2 Form Factor.............................................................................74
2.10.2 I/O Shield .....................................................................................................76
2.11 Electrical Considerations ............................................................................................79
2.11.1 Power Consumption.....................................................................................79
2.11.2 Add-in Board Considerations........................................................................79
2.11.3 Standby Current Requirements....................................................................80
2.11.4 Fan Connector Current Capability ................................................................81
2.11.5 Power Supply Considerations ......................................................................82
2.12 Thermal Considerations..............................................................................................83
2.13 Reliability ....................................................................................................................85
2.14 Environmental ............................................................................................................85
2.15 Regulatory Compliance ..............................................................................................86
2.15.1 Safety Regulations .......................................................................................86
2.15.2 EMC Regulations .........................................................................................86
2.15.3 Product Certification Markings (Board Level) ...............................................87
3 Overview of BIOS Features
3.1 Introduction.................................................................................................................89
3.2 BIOS Flash Memory Organization ..............................................................................90
3.3 PCI Autoconfiguration.................................................................................................90
3.4 System Management BIOS (SMBIOS).......................................................................90
3.5 Legacy USB Support ..................................................................................................91
3.6 BIOS Updates ............................................................................................................91
3.6.1 Language Support........................................................................................92
3.6.2 Custom Splash Screen.................................................................................92
3.7 Recovering BIOS Data ...............................................................................................92
3.8 Boot Options...............................................................................................................93
3.8.1 CD-ROM Boot..............................................................................................93
3.8.2 Network Boot................................................................................................93
3.8.3 Booting Without Attached Devices ...............................................................93
3.9 Changing the Default Boot Device During POST........................................................94