nvidia gtx660 help!!!!!!!

Hony Chuahdry

Honorable
Apr 27, 2013
23
0
10,510
hi.i have pc core i5 with 600 psu and my gpu is gtx 660 2gb.3 days ago it was good.when i start a game it starts and fans works like a thunder and performence was good.but now when i start any game it is still so quite.not working fast and every game display lags.i update drivers.install new windows too.but not working.i play nfs rivals high settings but it is givin lag on low settings now.farcry 4 was running smoothly on medium but now its laging on low settings.gpu is working but not get accelrated when game starts.plz tell me solution
 

Hony Chuahdry

Honorable
Apr 27, 2013
23
0
10,510


but i have a new and fresh windows 7 64bit.can u tell me how i can turn it off?how i can access motherboard power saving and canu plz tell me any software to boost my gpu for working like before?
 

Hony Chuahdry

Honorable
Apr 27, 2013
23
0
10,510


i have dell vostro 430 mother board with intel core i5 760 chip.600watt psu.5gb ram.it work perfect for whole year but now this problem.i install a game in which it start laging so i chek on other games there it got same issue but never had before this problem.that game was farcry 4.before this i installed far cry4 from other setup that works perfect.i reassemble whole pc too include this card but doesnt work.