I recently upgraded my motherboard (Gigabyte GA-MA74GM-S2) CPU (AMD Phenom x4 9600) my graphics card (Geforce 9600 GSO) and ram (2 sticks of 2 gb OCX PC1600)
and my computer runs fine at the start but randomly it gets a bsod (error 124) and shuts off. Sometimes the computer lasts for hours and hours... sometimes just a few minutes. Ive run various tests such as CPU, GPU and Memory tests, all came back with no problems found. I had windows 7 installed, but then downgraded to vista x64. and the problems seemed to lighten up, but now it seems to get a bsod more frequently.
Im out of ideas of what the problem could be.
Did you do a fresh installation of Windows after you upgraded all your hardware? If not, that's most likely the cause of your BSOD's.
Incorrect RAM settings are also a common cause of BSOD's. What program did you use to test your RAM? Did you manually set the RAM speed/timings/voltage to the manufacturer's specs in the BIOS? I've seen RAM with the voltage set to low pass Memtest86+, but then fail in real world use.
I did do a fresh install after upgrading, first to win7 then to vista.
I used Memtest and also did a stress test wtih Prime95.
My bios doesnt let me change my timings for some reason but my speed and voltage are set correctly.