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Help choosing PSU

I'm going to build a new PC, my first one actually, and I have already chosen all the parts I want and the power supply is the only thing left.
Here are the parts I picked:


Case: NZXT Phantom

Processor: Intel Core i5-2500K Sandy Bridge 3.3GHz

Motherboard: MSI Z68MA-ED55 (B3) LGA 1155 Intel Z68 HDMI

RAM: G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666)

Graphics Card: AMD Radeon HD 6970

Hard Drive: SAMSUNG Spinpoint F3 HD103SJ 1TB

DVD Burner: SAMSUNG SH-222AB - OEM

So could someone please recommend me a good psu??
Also, if I'm getting all 7 fans for the NZXT Phantom case and I won't overclock the 2500k, do I really need a cpu cooling system??
Thank you for your time :)
9 answers Last reply Best Answer
More about help choosing
  1. A good 550W, or 600W should do just fine. Look for: Antec, PC P&C, Corsair, Enermax, and Silverstone. I recommend an aftermarket cooler myself, but since you are not OC'ing it isn't needed.
  2. A Radeon HD 6970 has a maximum board power of 250 Watts. This means that the graphics card itself may draw up to 20.8 Amps from the +12 Volt rails.

    For a single Radeon HD 6970 graphics card system AMD recommends a 550 Watt or greater power supply with a +12 Volt current rating of 42 Amps or greater and with at least one 150W 8-pin PCI Express supplementary power connector and one 75W 6-pin PCI Express supplementary power connector.

    For a two Radeon HD 6970 graphics card 2-way CrossFireX system AMD recommends a 800 Watt or greater power supply with a +12 Volt current rating of 62 Amps or greater and with at least two 150W 8-pin PCI Express supplementary power connectors and two 75W 6-pin PCI Express supplementary power connectors.

    Since you're not overclocking the Intel Core i5-2500K the Intel supplied CPU cooler should work just fine.

    What is your power supply budget?

    Do you want a modular power supply?

    Does the power supply's efficiency matter to you?
  3. My budget for the psu is around $140, I don't really need a modular power supply, and obviusly the more efficient the better =P
  4. iiH3R3T1C said:
    My budget for the psu is around $140, I don't really need a modular power supply, and obviusly the more efficient the better =P

    Do you ever plan on running two Radeon HD 6970 graphics cards in 2-way CrossFireX mode?
  5. ko888 said:
    Do you ever plan on running two Radeon HD 6970 graphics cards in 2-way CrossFireX mode?
    Just stepping into the thread :D I may be running two HD 6970's in the future, do you have any recommendations for a PSU in that case? I have a similar budget ($140 wouldn't be too much, but I'd like to save money if possible).
  6. ko888 said:
    Do you ever plan on running two Radeon HD 6970 graphics cards in 2-way CrossFireX mode?


    God no, I could never afford something like that =/
  7. Best answer
    iiH3R3T1C said:
    My budget for the psu is around $140, I don't really need a modular power supply, and obviusly the more efficient the better =P

    Power Efficiency : 80 PLUS GOLD certified
    SeaSonic X Series X650 Gold (SS-650KM Active PFC F3) 650W for $139.99

    Power Efficiency : 80 PLUS Silver certified
    XFX PRO750W XXX Edition Semi-Modular P1-750B-NLG9 for $129.99

    Power Efficiency : 80PLUS BRONZE certified
    Antec High Current Gamer Series HCG-620 620W for $89.99
    CORSAIR HX Series CMPSU-650HX 650W for $119.99
    CORSAIR Enthusiast Series TX650 V2 650W for $89.99
    XFX Core Edition PRO650W (P1-650S-NLB9) 650W for $89.99
    XFX P1-650X-CAH9 650W for $88.99

    Power Efficiency : 80 PLUS Certified
    CORSAIR Enthusiast Series CMPSU-650TX 650W for $89.99
  8. Best answer selected by iiH3R3T1C.
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