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New Builder. Power Supply Help Needed.

Intel Core i5-4670K
Noctua NH-U12S
Asus Z87-Pro
G.Skill Ripjaws X 16GB (2 x 8GB) DDR3-1866
Asus GeForce GTX 780
Cooler Master JetFlo 120 PWM Fan (x4)
DVD-ROM Drive (x1)
Samsung 840 EVO 120GB SSD (x1)
Seagate Barracuda 1TB 3.5" 7200RPM (x1)

+ maximum of 5 USB devices

Also, if it matters, the CPU, GPU and RAM will be overclocked.

Right now I'm considering an EVGA SuperNOVA 650W 80+ Gold but, if it is possible, I'd rather get a smaller PSU to save a bit of cash. This build is pushing my budget to the absolute limit.

Thanks,
Miles.
7 answers Last reply Best Answer
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  1. Best answer
    The GTX 780 requires a minimum 600 watts PSU with 42 Amps on the 12 V rail. This does not include overclocking the CPU or the GPU. Generally it is not a good idea to overclock the RAM.

    Considering these factors you need a 750 watts or higher PSU of a good brand like Corsair, Seasonic, XFX, Antec. - Watch for sales and promos.
  2. Luckily I still haven't bought anything yet!

    Thanks for the reply.
  3. Ninjamilez said:
    Luckily I still haven't bought anything yet!

    Thanks for the reply.


    Watch for these on sale: http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=100007657%2050001459%2050001697%2050001516%2050001669%20600014094%20600014095%20600014097%20600479297&IsNodeId=1&name=XFX

    Check Amazon, and computer stores too for sales.
  4. HX and AX are decent , but RM series is cheaply built with poor capacitors.
  5. Thanks for the information.

    How would you compare an Antec PSU to a Corsair one?
  6. Ninjamilez said:
    Thanks for the information.

    How would you compare an Antec PSU to a Corsair one?


    This will help: http://www.tomshardware.com/answers/id-1804779/power-supply-unit-tier-list.html
  7. Thanks, that helped a lot. :)
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