Lot of black screen of death.. pls help !!

  SameerSam 10:45 26 May 2014
Locked

HI,

I am getting frequents black screen of deaths.

Very few times, what I see is Black screen while working on After effects or browsing internet or watching movies, today I got 2 black screen while playing multilayer MW3 and even on Batman.

What it does? The screen goes black and CPU is running. Keyboard lights goes off. 1 in 10 times I see that whole system gets restarted again.

Graphic driver is latest updated. CPU temp are 30-34 C idle and 45 C while playing games Mobo temps around 38 C normal, 50 while playing games. RAM are okay in MemTest.

I recently tested my system with Performance test with all test and it shows result as 2022.4 click here can be the issue of black screens?

I checked my CPU it has black lines.. See images. I tried to rub it with cloth and it was getting off, is that dust? Will that effect? If yes, then how can I clean it in a better way? Is this CPU is issue?

click here system specs: Mobo: ASUS M4A88T-M CPU: AMD Phenom II X6 1090T BE CPU Cooler: CM Hyper 212 EVO GPU: EVGA GeForce GTX 560 Ti DS Superclocked PSU: Seasonic Gold X 650W 2 HDD 12gigs RAM

Dump files: click here

What http://s28.postimg.org/eainyfikd/DSC_0007.jpg

My

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