Hi,
It seems to me to be a memory related problem, have you run memtest on all memory sticks,
(Intel MRC Code
This block of code has to be implemented in every Intel based platform BIOS. It initializes and configures the processor and runs bus training and adusting routines. It adjusts clockskews, read/write leveling, signal termination resistors and several chipset timings dynamically depending on the trace length, signal quality, timing and memory installed in the motherboard. If the MRC code hangs or the board cant pas the MRC code and resets it usually points towards memory problems and unsupported multiplier settings or a unsupported combination of multipliers.
I don't know if capitalised means anything, sorry
Cheers