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1.13.2 Fan Monitoring ........................................................................................................................ 27
1.13.3 Thermal Solution ................................................................................................................... 28
1.14 Power Management ................................................................................................................................ 29
1.14.1 ACPI ............................................................................................................................................. 29
1.14.2 Hardware Support ................................................................................................................. 31
2 Technical Reference ............................................................................................... 33
2.1 Memory Resources .................................................................................................................................. 33
2.1.1 Addressable Memory ........................................................................................................... 33
2.2 Connectors and Headers....................................................................................................................... 33
2.2.1 Front Panel Connectors ...................................................................................................... 34
2.2.2 Back Panel Connectors ....................................................................................................... 36
2.2.3 USB and I/O Headers ........................................................................................................... 37
2.3 VESA Bracket .............................................................................................................................................. 45
2.4 Power Supply ............................................................................................................................................. 47
2.4.1 Power Supply Connector ................................................................................................... 48
2.4.2 Fan Header Current Capability ......................................................................................... 48
2.5 Reliability ..................................................................................................................................................... 48
2.6 Environmental ........................................................................................................................................... 49
3 Overview of BIOS Features ................................................................................... 51
3.1 Introduction ................................................................................................................................................ 51
3.2 BIOS Flash Memory Organization ..................................................................................................... 51
3.3 System Management BIOS (SMBIOS) .............................................................................................. 51
3.4 Legacy USB Support ............................................................................................................................... 52
3.5 BIOS Updates ............................................................................................................................................. 52
3.5.1 Language Support ................................................................................................................. 53
3.6 BIOS Recovery ........................................................................................................................................... 53
3.7 Boot Options .............................................................................................................................................. 53
3.7.1 Network Boot........................................................................................................................... 53
3.7.2 Booting Without Attached Devices ................................................................................ 54
3.7.3 Changing the Default Boot Device During POST ...................................................... 54
3.7.4 Power Button Menu .............................................................................................................. 55
3.8 Hard Disk Drive Password Security Feature .................................................................................. 56
3.9 BIOS Security Features .......................................................................................................................... 56
3.10 System LED Functionality ..................................................................................................................... 58
4 Error Messages and Blink Codes ......................................................................... 59
4.1 Front-panel Power LED Blink Codes ................................................................................................ 59
4.2 BIOS Error Messages ............................................................................................................................... 59