i have local power supply from circle i am from india it has 20 a on two rail that is there is single waire split into two 6 pin conector i have right now hd 6770 which run fine all games without any probleam but i want to upgrade it to gtx 660 so plz tell me those my psu will handal my card or not what will happen if i run my card on this psu
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It should be OK. The GTX 660 does not consume much more power than the 6770.
Am using my EVGA GTX 660 SC on GX550 working fine for me it will be also good for you then