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Beginner
925 Views

DQ77KB broken after BIOS flash and cannot downgrade

I once tried flash BIOS version 0061 and the operation was successful. However after reboot:

 

1.The power LED doesn't come up anymore

2.The 82579LM NIC never shows in the BIOS

3.CPU cooler stopped working and can cause temperature warning

4.All BIOS downgrade method stopped working: recovery method using jumper will just show black screen and the iAMT blue light flashes from time to time (seems like cannot find valid USB drive and reboot, tried different USB stick and disk format with no good); other downgrade method will simply get error FwUpdateFullBuffer (0x8000000000000015, 1550).

 

Is it still possible to recover from this state? Thanks for helping.

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New Contributor III
14 Views

try to remove cmos battery and reinsert

if possible restore bios default settings

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