Intel Desktop Board DH61WW Technical Product Specification 
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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  Mechanical Considerations ................................................................. 53 
2.4.1  Form Factor .......................................................................... 53 
2.5  Electrical Considerations .................................................................... 54 
2.5.1  Power Supply Considerations .................................................. 54 
2.5.2  Fan Header Current Capability ................................................ 55 
2.5.3  Add-in Board Considerations ................................................... 55 
2.6  Thermal Considerations ..................................................................... 56 
2.7  Reliability......................................................................................... 58 
2.8  Environmental .................................................................................. 58 
3  Overview of BIOS Features 
3.1  Introduction ..................................................................................... 59 
3.2  System Management BIOS (SMBIOS) ................................................. 61 
3.3  Legacy USB Support ......................................................................... 61 
3.4  BIOS Updates .................................................................................. 62 
3.4.1  Language Support ................................................................. 62 
3.4.2  Custom Splash Screen ........................................................... 63 
3.5  BIOS Recovery ................................................................................. 63 
3.6  Boot Options .................................................................................... 64 
3.6.1  Optical Drive Boot ................................................................. 64 
3.6.2  Network Boot ........................................................................ 64 
3.6.3  Booting Without Attached Devices ........................................... 64 
3.6.4  Changing the Default Boot Device During POST ......................... 64 
4  Error Messages and Beep Codes 
4.1  Speaker .......................................................................................... 65 
4.2  BIOS Beep Codes ............................................................................. 65 
4.3  Front-panel Power LED Blink Codes ..................................................... 66 
4.4  BIOS Error Messages ........................................................................ 66 
4.5  Port 80h POST Codes ........................................................................ 67 
5  Regulatory Compliance and Battery Disposal Information 
5.1  Regulatory Compliance ...................................................................... 73 
5.1.1  Safety Standards................................................................... 73 
5.1.2  European Union Declaration of Conformity Statement ................ 74