A neighbor's DELL E521 motherboard & CPU bit the dust according to 2 different repair shops.
So he decided to order a motherboard & CPU himself. While shopping, he discovered the E521 has a PROPRIETY motherboard. So he ordered an IDENTICAL DELL motherboard but opted for a AMD X2 5200 instead of the factory 3900.
When he turns the computer on, it first says "HDD 0 Seek Failure" so he went into BIOS but the BIOS IDENTIFIES the CORRECT Hard drive. As well as the CORRECT CPU.
When he exits BIOS he gets the BSOD with STOP: 0x0000005C (0x0000010B, 0x00000001, 0x00000000, 0x00000000)
*IF* he hits F1 to continue when the HDD 0 Seek Failure appears it displays the Option Menu Start Normally , Repair, etc. He chose Repair, it "did it's repair thing" but then when it restarts, he's right back where he started, SAME PROBLEM, SAME ERROR.
If you google for this STOP error - there are loads of similar issues - however, the Seek error bit is too dramatic for a software fault - unless you have been misinformed as to exactly when it occurs.
I say this because a BSOD error is usually from within Windows - which is much later than "exiting the BIOS"