Re: All Graphics Cards related queries here.
^^ that is a common misconception
70% efficiency means your PSU draw 845W from wall socket/main power source to deliver 650W. So if your current consumption is around say 320W your PSu will draw 430 approx from the main power socket.
But the main important spec for a PSU is it's 12V ampere rating. As all the peripherals inside the cabby depends heavily on it.
according to the specs your PSU can deliver upto 432 with it's dual +12v rail.
But the power consumption of your rig witha added HD5830 or HD5850 can go upto 460W ( approx ) - so it's better to get a new PSu like corsair TX/HX 650W as I mentioned earlier.
@ abhidev - get the corsair VX550W but if you can't find it CM GX 550 should be your alternative chioce.
^^ that is a common misconception
70% efficiency means your PSU draw 845W from wall socket/main power source to deliver 650W. So if your current consumption is around say 320W your PSu will draw 430 approx from the main power socket.
But the main important spec for a PSU is it's 12V ampere rating. As all the peripherals inside the cabby depends heavily on it.
according to the specs your PSU can deliver upto 432 with it's dual +12v rail.
But the power consumption of your rig witha added HD5830 or HD5850 can go upto 460W ( approx ) - so it's better to get a new PSu like corsair TX/HX 650W as I mentioned earlier.
@ abhidev - get the corsair VX550W but if you can't find it CM GX 550 should be your alternative chioce.