Sli unstable

[Slayer1443]

So I have 2 gtx 660s sc in sli. They run fine in games although after about 5 mins or less my fps drops from 150-230 range down to 13-20  fps causing me to just lag very hard. Its not my temperatures ive already checked multiple times for that and i dont know what else would be causeing it. If this helps my power supplys a 750w so i dont think it would be that either ;/ thanks for the help in advanced ;D. 

[zlolslavez]

check your tempatures

[xToFxREAPER]

check your tempatures

Did you even read the entire post

 

"Its not my temperatures ive already checked multiple times for that" 

 

 

So I have 2 gtx 660s sc in sli. They run fine in games although after about 5 mins or less my fps drops from 150-230 range down to 13-20  fps causing me to just lag very hard. Its not my temperatures ive already checked multiple times for that and i dont know what else would be causeing it. If this helps my power supplys a 750w so i dont think it would be that either ;/ thanks for the help in advanced ;D. 

I would ensure your cards are properly seated in the board as well as making sure the sli bridge is properly fitted and not damaged. Failing that i would test each card by itself to see if one possibly has a fault in it that is causing said issues.

[CalculuS]

Check with MSi Afterburner if the clocks stay stable.

[Slayer1443]

ive had both cards in sli befor on a diffrent mobo and they were fine and i have changed sli bridges and nothing as well