If it were my rig, the first thing I would look at is this. "430W Apevia PSU (came with the case) If it were a quality Power Supply it would not be adequate for your rig, and Apevia isn't known for quality to say the least..
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Biostar TForce X58 - Core i7 920 - 6GB Corsair Dominator DDR3 - XFX 9800GTX 512MB - PCP&C 750W - 1 X 36GB Raptor, 1 X 200GB Sata2, 3 X 320GB Sata2 - Dual boot, Gentoo Linux/WinXP |