2 dead RAM sockets.

Hello errybodeh,

I've got this issue which started way back in November I think.
So there I was, switching CPU cooler and everything was fine. I started the system but it wouldn't get to BIOS. Error thingy on my AsRock P67 Pro3 told me that it's RAM related so I switched slots from 1 | 3 to 2 | 4. Didn't help so I put them in 3 | 4 and boom, it worked. My guess was that the pins of the CPU socket on mobo are bent, and they were. So far I didn't see any more problems so I continued using the system while I figure out whether to fix the pins or buy a new mobo.

After a while problems with GPU started, it would overheat like crazy. We're talking 70C idle, 98C in AC3. Took my GPU and tested it in my friend's setup. Temps were fine so I figured - ok, it's the mobo (bent pins and all that). Bought new motherboard and this is where things get weird.

The day I was supposed to replace the mobo, I started my PC, I got to the desktop and it died with a GPU drivers related BSOD. Tried reinstalling and all that stuff but it didn't work so I decided to replace the mobo since I was supposed to do so anyway.

Replaced and of course, relocated the RAM to 1 | 3 but apparently it wouldn't boot. The problem is still there.
As to GPU, tried few things, even a fresh win installation (was about to refresh the installation anyway) and as soon as I install any drivers I get a BSOD.

I'm sending my GPU to the manufacturer for RMA today but the problem with sockets is still there.

I will probably be able to test PSU as well as CPU this week but if it's possible I'd like to know which part is most likely to cause that kind of damage. CPU or PSU?

PSU was fine till the part where (after the first 2 sockets dropped dead) while playing AC3 my screen would go black and GPU fan would go crazy up to 100% . Now it could be the PSU problem but it can be a GPU problem as well which, I just sent to EVGA for RMA cuz of the drivers.
CPU is fine. It has some paste on the sides but I don't think that it would cause such problems. I thought that it had some on the bottom but nope, it's clean. CPU temps are around 22-26C in idle so in my opinion CPU is ok.

Now my theory is that there's something wrong with PSU and it's basically screwing with both mobo and GPU. I'd like to hear few more opinions since last time I thought that I know what's damaged I bought new mobo which in fact is not the problem.

Thanks upfront!
I'd start the topic with some kind of GA, but well, I just bought the mobo and if the CPU is damaged I'll have to conjure some money out of a hat...

Specs:
i5 2500K, AsRock P67 Pro3, Antec TP-750, Patriot G2 2x8GB 1600MHz, EVGA GTX580 SC.