Serious Stability Issues Help

E6300 Stock speed
Gigabyte DS3 latest BIOS
X1900xt 256
GSkill DDR2 800 4-4-4-12 (Blue spreader) @2.1v
Aspire 500W PSU (Clear Blue Model)
Thermaltake Big Typhoon W/ Silverstone FM121 fan @ 1000RPM's


Voltage Idle From Easytune

VcoreA 1.25
+3.3v 3.32
+12v 12.49 (kinda high?)
CPU Vid 1.32 (??)

Temps Idle Easy Tune

System 39c
CPU 23c

TAT- 39c both cores

Volts Load Using TAT recoded from Easy Tune

VcoreA 1.33
+3.3V 3.32
+12V 12.36
CPU Vid 1.32

Temps Load using tat recorded from Easy Tune

System 39c
CPU 43c

TAT full load 55c core0 51c core1

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Story:

My PC suddenly died the other day. Took my two days to narrow it down. The CPU died and I replaced it with another E6300

Worked fine for 1 day and I overclocked it to 400x7 1.325v and Ram at Factory 800 4-4-4-12 2.1v

Temps stayed below 60c under normal use and seemed stable

Last night running idle with Torrent program, CP started restarting in a fuc[b][/b]Kedup way.

It wouldnt turn on the first 5 times and the 6th time it turned on @ 2.8

I reset everything to Failsafe defaults and it restared again browsing the web.

I set ram at 2.1v (from 1.8v with is below specs) and I typed this.

Any ideas??? I'm thinking either Motherboard or PSU.

Im feeling left out