Intel Desktop Board DB85FL Technical Product Specification
viii
2
Technical Reference
2.1
Memory Resources ........................................................................... 39
2.1.1
Addressable Memory.............................................................. 39
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 Security Jumper ....................................................................... 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 ..................................................................... 55
2.7
Reliability ........................................................................................ 58
2.8
Environmental .................................................................................. 58
3
Overview of BIOS Features
3.1
Introduction ..................................................................................... 59
3.2
BIOS Flash Memory Organization ........................................................ 60
3.3
Resource Configuration ..................................................................... 61
3.3.1
PCI Express Autoconfiguration ................................................ 61
3.4
System Management BIOS (SMBIOS) ................................................. 61
3.5
Legacy USB Support ......................................................................... 61
3.6
BIOS Updates .................................................................................. 62
3.6.1
Language Support ................................................................. 62
3.6.2
Custom Splash Screen ........................................................... 63
3.7
BIOS Recovery ................................................................................. 63
3.8
Boot Options .................................................................................... 64
3.8.1
Optical Drive Boot ................................................................. 64
3.8.2
Network Boot ........................................................................ 64
3.8.3
Booting Without Attached Devices ........................................... 64
3.8.4
Changing the Default Boot Device During POST ......................... 64
3.9
Adjusting Boot Speed ........................................................................ 65
3.9.1
Peripheral Selection and Configuration ..................................... 65
3.9.2
BIOS Boot Optimizations ........................................................ 65
3.9.3
Power Button Menu ............................................................... 66
3.10
Hard Disk Drive Password Security Feature .......................................... 66
3.11
BIOS Security Features ..................................................................... 67
3.12
BIOS Performance Features ............................................................... 68
4
BIOS Error Codes and Messages
4.1
BIOS Error Codes ............................................................................. 69
4.1.1
BIOS Beep Codes .................................................................. 69
4.1.2
Front-panel Power LED Blink Codes ......................................... 70
4.2
BIOS Error Messages ........................................................................ 70
