The only thing I can think of is that for some reason your original PSU shorted out, now it's starting to become really obvious that something else is buggered too and I don't think it was your mobo.. You've replaced it right? And your still getting blue screens! Therefore something else in the mix is suspect too... As you know, the most likely candidate is going to be your memory... I bet you thats what it is...

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AMD X2 BLACK EDITION 3.2GHz SAMURAI COOLER::GA-M51 MB-HEATPIPE CHIPSET COOLER::3GB XMS2 PC6400 RAM::GEFORCE 8800 GTS 320MB 575/900MHz::160GB BARRACUDA RAID 0::SOUNDBLASTER AUDIGY::SAMSUNG WRITEMASTER DVD-RW/PIONEER DVD::HIPER MODULAR 530W PSU::THERMALTAKE ARMOUR Jr CASE::RAZER COPPERHEAD MOUSE::VISTA HOME PREMIUM SP1