PSU needed for SLI gtx 570

helo everyone, i'm planning to do a GTX 570 SLI if i can. But don't know if my PSU fits the requirement to get the job done. here is my specs..

intel core i5 750
asus p7p55d
kingston hyperx 4gb ddr3 1600mhz
1x WD caviar green 640gb
1x WD caviar blue 160gb
coolermaster silent pro m 850w

i know my mobo need to change if i want to do SLI. i just have no idea about the PSU.
Do i need to replace my PSU? Thanks for any feedback.
3 answers Last reply
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  1. If it were a Corsair, Seasonic,PCP&C, Antec Earthwatts, or XFX 850 watt-er, I'd say you were good to go. I know nothing about a CM Silent Pro M850.
  2. A silent Pro M 850W can handle 2 GTX 570s easily, its got enough power behind it to support them, it got the award from HW secrets so its a solid unit
  3. thx for all your feedback... if its true.. i should relief.. at least i don't have to spend more for another psu...
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