PSU for a Gaming Rig.

I am going to build a Gaming Rig Based on

MSI 790FX GD-70 ($152)

Most Likely either Radeon HD 4850 this in Quad fromation or this in Radeon HD 4850 X2 dual fromation.

with 12800 4 gb ram

2 7200rpm HDD

1 Dvd- RW

and 1 X 120 MM

2 X 80 MM Fans

And Phenom II X4

I would like to know how big a or How much Wattage should i Be looking At.


3 answers Last reply
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  1. I'd park it in the 850w+ range for a good PSU brand with at least 60a on the 12v rail. Make sure you have a PSU with the proper conncectors. Manufacture spec is for a 1kw unit. Use the link for PSU in my sig and you can see a list of the reviewed PSUs and how they stack up to each other. Interesting GPU selection.
  2. Count up the total number of pci-e 6 or 8 pin power connectors that your graphics configuration needs.
    Get a psu with that number of leads. All your other parts are normal, and accounted for.

    A quality PSU will be able to deliver enough power for all the leads at any load and temperature.

    Quality units come from Corsair, PC P&C, Seasonic, Antec to name a few.

    Your requirements will be satisfied typically by a 750w unit.
  3. Thanks guys for all the help.

    Thanks a Bunch. I will try the links and also check out some of the suggested PSU's.
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