viii
1.16 Power Management .......................................................................... 31
1.16.1 ACPI .................................................................................... 31
1.16.2 Hardware Support ................................................................. 34
2 Technical Reference
2.1 Memory Resources ........................................................................... 38
2.1.1 Addressable Memory ............................................................. 38
2.1.2 Memory Map ......................................................................... 40
2.2 Connectors and Headers .................................................................... 40
2.2.1 Back Panel Connectors ........................................................... 41
2.2.2 Component-side Connectors and Headers................................. 42
2.3 BIOS Configuration Jumper Block ....................................................... 51
2.4 Intel
®
Management Engine BIOS Extension (Intel
®
MEBX) Reset Header . 53
2.5 Mechanical Considerations ................................................................. 54
2.5.1 Form Factor .......................................................................... 54
2.6 Electrical Considerations .................................................................... 55
2.6.1 Power Supply Considerations .................................................. 55
2.6.2 Fan Header Current Capability ................................................ 56
2.6.3 Add-in Board Considerations ................................................... 56
2.7 Thermal Considerations ..................................................................... 57
2.8 Reliability......................................................................................... 59
2.9 Environmental .................................................................................. 59
3 Overview of BIOS Features
3.1 Introduction ..................................................................................... 60
3.2 System Management BIOS (SMBIOS) ................................................. 62
3.3 Legacy USB Support ......................................................................... 62
3.4 BIOS Updates .................................................................................. 63
3.4.1 Language Support ................................................................. 63
3.4.2 Custom Splash Screen ........................................................... 64
3.5 BIOS Recovery ................................................................................. 64
3.6 Boot Options .................................................................................... 65
3.6.1 Optical Drive Boot ................................................................. 65
3.6.2 Network Boot ........................................................................ 65
3.6.3 Booting Without Attached Devices ........................................... 65
3.6.4 Changing the Default Boot Device During POST ......................... 65
4 Error Messages and Beep Codes
4.1 Speaker .......................................................................................... 66
4.2 BIOS Beep Codes ............................................................................. 66
4.3 Front-panel Power LED Blink Codes ..................................................... 67
4.4 BIOS Error Messages ........................................................................ 67
4.5 Port 80h POST Codes ........................................................................ 68