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Checking PSU requirements + need PSU recommendation

I need verification with what my machine will require.

In use:
Mobo: MSI P55-CD53
GPU: Twin Frozr II GeForce GTX 560 Ti
CPU: Intel i5-650
HDD: 1x 7200rpm
Fans: 1x 80mm, 1x 92mm, 1x 120mm.
Memory: 4x 4GB DDR3
1x CD drive

Provided that I'm looking for the PSU to handle peak load along with some allowance for future upgrades and a longer lifespan under frequent use, I got something along the lines of 600-650w with a minimum of 38amps. If this information is incorrect, please feel free to correct me as I have no knowledge outside of what I have read.

Previous PSU dimensions: 5.9"(W) x 3.4"(H) X 6.3"(L); fits the case well, but provided the distance between screws is standardized (~5.5" x ~3.5") it has room for a slight increase in width and length.

Also keep in mind that I live in a desert, which means that it can get quite hot around here (although we try to keep the inside cool), with dust storms happening about every month. If you also recommend attaching another fan to my case because of this, that can be done. (Note: I do make sure that the inside is kept well)

With all of this information, what would you recommend for a new PSU? (provided my information is correct)


Guides referred to:
http://www.tomshardware.com/forum/314712-28-please-read-determine-power-required
http://extreme.outervision.com/PSUEngine


Thanks in advance!
2 answers Last reply Best Answer
More about checking psu requirements psu recommendation
  1. Best answer
    Will run your specs:

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: XFX 550W 80 PLUS Bronze Certified ATX12V / EPS12V Power Supply ($59.99 @ Newegg)
    Total: $59.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-08-06 18:50 EDT-0400)

    Dimensions
    5.5" x 5.9" x 3.4"



    Future Proof at a good price $69.99

    PCPartPicker part list / Price breakdown by merchant / Benchmarks

    Power Supply: Rosewill Capstone 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($69.99 @ Newegg)
    Total: $69.99
    (Prices include shipping, taxes, and discounts when available.)
    (Generated by PCPartPicker 2013-08-06 18:53 EDT-0400)

    Dimension 5.9 x 3.39 x 6.42 inch
    150 x 86 x 163 mm
    W x H x D
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