Intel Desktop Board DP55WB Technical Product Specification 
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2.5  Electrical Considerations................................................................... 52 
2.5.1  Power Supply Considerations ................................................. 52 
2.5.2  Fan Header Current Capability................................................ 53 
2.5.3  Add-in Board Considerations .................................................. 53 
2.6  Thermal Considerations.................................................................... 53 
2.7  Reliability ....................................................................................... 56 
2.8  Environmental ................................................................................ 56 
3  Overview of BIOS Features 
3.1  Introduction ................................................................................... 57 
3.2  BIOS Flash Memory Organization....................................................... 58 
3.3  Resource Configuration .................................................................... 58 
3.3.1  PCI Autoconfiguration ........................................................... 58 
3.4  System Management BIOS (SMBIOS)................................................. 59 
3.5  Legacy USB Support ........................................................................ 59 
3.6  BIOS Updates ................................................................................. 60 
3.6.1  Language Support ................................................................ 60 
3.6.2  Custom Splash Screen .......................................................... 61 
3.7  BIOS Recovery................................................................................ 61 
3.8  Boot Options................................................................................... 62 
3.8.1  CD-ROM Boot ...................................................................... 62 
3.8.2  Network Boot....................................................................... 62 
3.8.3  Booting Without Attached Devices........................................... 62 
3.8.4  Changing the Default Boot Device During POST ........................ 62 
3.9  Adjusting Boot Speed....................................................................... 63 
3.9.1  Peripheral Selection and Configuration..................................... 63 
3.9.2  BIOS Boot Optimizations ....................................................... 63 
3.10 BIOS Security Features .................................................................... 64 
3.11 BIOS Performance Features .............................................................. 65 
4  Error Messages and Beep Codes 
4.1  Speaker ......................................................................................... 67 
4.2  BIOS Beep Codes ............................................................................ 67 
4.3  Front-panel Power LED Blink Codes.................................................... 68 
4.4  BIOS Error Messages ....................................................................... 68 
4.5  Port 80h POST Codes ....................................................................... 69 
5  Regulatory Compliance and Battery Disposal Information 
5.1  Regulatory Compliance..................................................................... 75 
5.1.1  Safety Standards.................................................................. 75 
5.1.2  European Union Declaration of Conformity Statement................ 76 
5.1.3  Product Ecology Statements................................................... 77 
5.1.4  EMC Regulations .................................................................. 81 
5.1.5  Product Certification Markings (Board Level)............................. 82 
5.2  Battery Disposal Information............................................................. 83