when I'm using my computer my gpu ( gtx 660 ti ) suddenly turn off displaying no display. all the other components work like the processor , exhaust fan and psu . then after turning off my pc when i turn it on again the psu makes a loud noise while turning on. then i have to disconnect the pci-e cables connected to the gpu and plug in again to work normally. this process is going on for sometime and coudnt find any fix.