Intel Desktop Board DH61HO Technical Product Specification
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2 Technical Reference
2.1 Memory Resources ........................................................................... 35
2.1.1 Addressable Memory.............................................................. 35
2.1.2 Memory Map ......................................................................... 37
2.2 Connectors and Headers .................................................................... 37
2.2.1 Back Panel Connectors ........................................................... 38
2.2.2 Component-side Connectors and Headers ................................. 39
2.3 BIOS Configuration Jumper Block ....................................................... 47
2.4 Mechanical Considerations ................................................................. 48
2.4.1 Form Factor .......................................................................... 48
2.5 Electrical Considerations .................................................................... 49
2.5.1 Power Supply Considerations .................................................. 49
2.5.2 Fan Header Current Capability ................................................ 50
2.5.3 Add-in Board Considerations ................................................... 50
2.6 Thermal Considerations ..................................................................... 51
2.7 Reliability ........................................................................................ 53
2.8 Environmental .................................................................................. 53
3 Overview of BIOS Features
3.1 Introduction ..................................................................................... 55
3.2 System Management BIOS (SMBIOS) ................................................. 57
3.3 Legacy USB Support ......................................................................... 57
3.4 BIOS Updates .................................................................................. 58
3.4.1 Language Support ................................................................. 58
3.4.2 Custom Splash Screen ........................................................... 59
3.5 BIOS Recovery ................................................................................. 59
3.6 Boot Options .................................................................................... 60
3.6.1 Optical Drive Boot ................................................................. 60
3.6.2 Network Boot ........................................................................ 60
3.6.3 Booting Without Attached Devices ........................................... 60
3.6.4 Changing the Default Boot Device During POST ......................... 60
4 Error Messages and Beep Codes
4.1 Speaker .......................................................................................... 61
4.2 BIOS Beep Codes ............................................................................. 61
4.3 Front-panel Power LED Blink Codes ..................................................... 62
4.4 BIOS Error Messages ........................................................................ 62
4.5 Port 80h POST Codes ........................................................................ 63
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