You dont' seem to be the only one with this problem, look for thread with title Intel releases another broken BIOS for DX58SO desktop board... another user seems to have had the same experience as you yesterday.
I had similar issues with 5020, but they were resolved by either moving jumper to configuration mode, or unplugging the machine and pulling the CMOS battery. After resolution, the board would eventually do the same thing again after a few reboots... (aka fans at full speed, no video, hang forever). Moved back to 4405 until Intel can either get a stable BIOS release, or the next BIOS release kills my board as well.
hmm doesn't sound too good then, its almost the same as described in the thread
guess i send it back to my retailer, exchange it and wait for a newer bios version *hopefully* to use my i7...
Hi, did you find a solution for this issue? I am having the same problem!