How much power will this rig need?

This is my first post on here, and the first computer I'm making.
I am pretty sure about a lot of my system. Here are the parts I am thinking of getting and why:

Motherboard: GIGABYTE GA-X58A-UD3R - $200
Why: It's very versatile and upgradeable, doesn't cost $400, and has SATA III for my SSD

Case: CoolerMaster Haf 932 - $130
Why: Has plenty of space for my mobo and GFX, awesome air cooling, tool-less design, and looks great.

CPU: Intel Core i7 950 - $260
Why: Currently the best CPU out there for it's price

RAM: Mushkin Enhanced Silverline DDR3 1333MHZ (3x2GB) - $70
Why: Cheap. I wanted 1066MHZ because then I wouldn't overclock over the 950's compatible RAM speed (for lower temps and more stability), but looks like this is actually cheaper than the equivalent 1066MHZ RAM

Hard Drive: 128GB Crucial C300 SSD - $250
Why: Arguably the fastest and best performing SSD on the market.

Video Card: ATI Radeon HD 5870 - $290
Why: Awesome bang for buck, no hassle with crossfire, and can be used with crossfire in the future if it's not enough

Power Supply - ????

So that is my system, but I have no idea what power supply I need. The absolute highest I want to pay for the PSU is $150, but I really would rather stay under $100. So anybody know how much power this rig will take and what good PSUs I can hook it up with?

Also, I haven't bought any of these parts yet, so could there be any stability or compatibility issues with this setup? And do you guys have any recommendations, suggestions, or criticisms for anything/any combination of parts I chose?
5 answers Last reply
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  1. I'd choose a Corsair 650 - from newegg it is $89.99 w/free shipping.
  2. treefrog07 said:
    I'd choose a Corsair 650 - from newegg it is $89.99 w/free shipping.

    Are you sure 650W is enough? I got some pretty high end parts on it and might even be upgrading some of them in the future. For example doubling the ram or adding in another video card when I get the money
  3. Yes, check my configuration for the DFI-LP-X48=T3RSB+ (under more information, member configuration). I'm loading much more hardware than you plan to have. And your 5870 uses much less current than my 2 4870s.
  4. The Corsair 650W is plenty for your setup, with ONE video card. The HD5870 wants a "500W or greater" PSU according to AMD.

    However, if you're serious about adding a second video card later, you need something with 4 PCI-E connectors. The Corsair 650W only has 2. I'd pick something like the PC Power & Cooling 750W, for example. It's currently $120 minus 10% promo code.

    Or the Corsair 750W, a few dollars less, and also very good.
  5. Yeah actually I am now planning to SLI two GeForce GTS 450 together instead of the HD5870, because that's $100 cheaper but actually gives better performance.

    Would you still recommend the PC Power and Cooling 750W if I do that?
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