my processor is intel i5 2500k ocd to 4.5ghz,currenly i have 1 gtx 560ti card..i want to add an another one is this psu Cooler Master PSU(SMPS) GX 650W is enough to handle 2 gtx 560s..my board is msi p67a-gd65
unfortunately my corsair psu is 3 years old ..which died 2 days ago when i was playing mafia ..suddenly my pc turned off and i cannot switch it again ..as my corsair have only 2 years warranty i had to replace an another one currently there is no availability of corsair psu in my area..i dont know whch psu to buy im currenly using my laptop..
the system engg said that it cannot be replaced because i dont have a ups for my computer ..my older ups supports only 600w so i cannot use my ups..my engg said as some voltage fluctuations occured my psu was gone.i cant beleive him because they are high brand and how they can be destroyed by a voltage drop..does this also covers warranty
Since you have done this much oc on you cpu I will say get a 700w psu to be on safe side, because 2 gtx 560s on SLI will draw around 280w power
and that PSU has a single rail +12v for stability reasons it is better to go with dual rail or above