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Power supply for Core i7 build

I'm building a new machine around a Core i7 950 CPU, a GA-X58A-UD3R motherboard, and an ATI Radeon HD 3450 GPU or similar graphics board. I’ll start up with 3 sticks of 2 GB RAM and add more RAM later. For HD I'll probably go with the Western Digital Caviar Black 1TB. I'll also install a HP RW/DVD disc drive. All those components weigh in with a power requirement of ~450 watts. However, I'm going to buy ahead for expansion in a year or so and install a PSU in the range of 600-750 watts. I want an electrical source for this new build to include modular wiring, multiple rails, and the full complement of overage/underage protections offered inside top line power supplies.

I'd like to get as close as possible to these criteria in a price range under $100. However, I'm willing to go higher if the value is there.

Does anyone have recommendations or other comments about the best value in a power supply unit that I can find on the web?

Thanks for any and all feedback. :hello:
12 answers Last reply Best Answer
More about power supply core build
  1. http://www.newegg.com/Product/Product.aspx?Item=N82E16817207003
    The XFX 750W unit is a little above the $100 mark but is modular, quite powerful, and comes with the standard protections. It has a single rail but that really doesnt affect much, its just as safe and stable as a multi rail one of the same quality would be.
  2. Yaa...Go for the XFX 750W PSU!
  3. Corsair and Seasonic are two brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty (in the USA).
  4. Thank you, Aneesh, Hunter and JohnnyLucky, for the recommendations. I'm definitely taking a closer look at them.
  5. An HD 3450 on a X58 rig.! What's up.?
  6. An HD 3450 on a X58 rig.! What's up.?[/quotem

    I went with the Gigabyte GeForce GTX 460. The HD 3450 was a placeholder, and, as you point out, a misfit.
    This is what I finally ordered in addition to the GTX:

    Chassis: Antec P183
    Memory: Corsair Dominator GT 6 GB PC3-16000 2000Mhz
    HD: WD VelociRaptor 300 GB
    Motherboard: GA-X58A-UD5
    Power Supply: Antec CP850
    CPU: Core i7 950
    Storage: WD Caviar Green 2 TB

    What do you think? I should be able to begin assembly this week.
  7. omg.... first... why velocirraptor!!! u should get a ssd not velocirraptor...

    second... caviar green :|... u should get samsung spinpoint f3

    and third 850w its a lot for that... 650w/750w would be sufficient to power gtx460 in sli...
  8. Best answer
    Juanchioo said:
    omg.... first... why velocirraptor!!! u should get a ssd not velocirraptor...

    second... caviar green :|... u should get samsung spinpoint f3

    and third 850w its a lot for that... 650w/750w would be sufficient to power gtx460 in sli...

    SSDs are WAAAY to small that is why.
  9. but they are waaay faster too.... i prefer 60gb or 120gb ssd than velocirraptor
  10. Randomacts said:
    SSDs are WAAAY to small that is why.
    Thank you for that feedback. I took it to heart and switched the hard drive build to a RunCore Pro IV 128GB for the boot drive and a Samsung SpinPoint 1TB for primary storage. The velociraptor has been delivered, and I'm assuming I will send it back -- although I suppose I could add it as a secondary storage, which might be a waste of money, except perhaps to use it for all essential on-site backups.
    Here's the system I'm ending up with
    Graphics Card: GV-N460OC-1GB
    Case: Antec P183
    Memory: Corsair Dominator GT 6 GB PC3-16000 2000Mhz
    Hard Drive: RunCore Pro IV 128GB 2.5" SATA Solid State Drive
    Processor: Intel Core i7 950
    Motherboard: Gigabyte-X58A-UD5
    Power Supply: Antec CP850
    Storage: Samsung SpinPoint F3EG HD103SJ 1TB
    Fans: Thermal SpinQ VT

    ???=WD VelociRaptor 300 GB
  11. Best answer selected by Antaresting.
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