BSOD when playing games

ok so 1 month ago i was getting a whole load of BSOD'd and thanks to your help, leading me to RMA my gpu, new one is back, installed and im still getting freezing.

it will freeze, the screen will turn black and i'll have too soft shut it down.

a couple of times it didn't want to display anything when turned on and the screen will go into standby mode.

i tested the ram and found a dead dimm, moved the ram to the next pair of dimms and all was well.

the after playing skyrm for a couple of hours it did it again. this time removing and putting the ram back in the same slots solved it.

i noticed in the bios that the ram speed was set lower than the ram is so set it right.

and then it did it again..... and started up fine this time.

ran memtest and found no problems, ran the built in windows memory checker and that found no porblems.


in the solution centre the last crash was this

Description
A problem with your video hardware caused Windows to stop working correctly.

Problem signature
Problem Event Name: LiveKernelEvent
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 2057

Extra information about the problem
BCCode: 117
BCP1: FFFFFA8009093010
BCP2: FFFFF8800F1ACA88
BCP3: 0000000000000000
BCP4: 0000000000000000
OS Version: 6_1_7601
Service Pack: 1_0
Product: 768_1
Bucket ID: X64_0x117_Tdr:2_IMAGE_nvlddmkm.sys
Server information: 03bcb137-d849-496a-b4a9-84ef5fe6ca20



but ive just had a replacement back??

running out of ideas!!

not happy that i cant really use my 3month old system!! :-(

Any ideas on how to fix? Or is it RMA time again? could it be a software issue?

yea got all clocks at stock, apart from the GPU which is factory OC

following on from gunderman's post i swapped my GPU to another PCI-E, re-installed the drivers. and so far no crash. i double checked all the wires were plugged in properly aswell. "touch wood" though it may be ok

i have a feeling all the prefered slots on my board are dodgey, all the ones of the light grey colour (the fastest) as the RAM and GPU are now all in the brown slots.

also im just wondering if my PSU is up to the job. its a modular 650watt by corsair powering :-

i7 3770k
windforce 680 2gb
sabertooth z77
8gb corsair vengance.

how funny because it certenly seems to be that way.

ive had no problems since and its been more than enough time before one would of happened, (not too say that it wont but its looking good)

i'm a bit reluctant to try it back into the x16 slot as ive seen no preformance drop after going to the x1, but i may try it just to confim that that was the problem.

thanks for the info thought.

i shall use that calculator and make sure im above the recomended, just to be safe


thanks again.