I have a problem that sounds like the same thing, this is what I get. Could this be related to bad ram as suggested.
STOP: 0x0000004 ( 0xE2893178, 0x00000002, 0x00000000, 0x8049E8E0 )
IRQ_NOT_EQUAL_OR_LESS
*** Address 8049E8E0 Base @ 80400000, Data Stamp 3AD7AD60 - NTOSKRNL.EXE