Need help in choosing power supply PLEASE HELP!!!

So I'm planning on building my rig and I was wondering which power supply would be best for me to buy a FSP HEXA HE500 Eff>80% 500w or Thermaltake LitePower 500w?

My specs are:
Intel Core i3 3220 3.3ghz
MSI H61M-P31 H61
RipJaws 8gb 1333 (10666CL9D) 2x4
PC (HD7750-4400) (HD7770-5250) 1gb ddr5
500gb Seagate Barracuda 7200rpm
250gb Seagate Barracuda 7200rpm

Which one would be good enough and is durable enough for long time use?
Reply to SystemDown
5 answers Last reply
More about need choosing power supply help
  1. your running CF?

    i ask because there may not be enough power! how many connectors for power does that card(s) require? and how many amps will they need. not sure if either of these will do...
    Reply to Mt Power
  2. 7750 is a 55 watt part
    7770 is a 80 watt part
    that i3 is a 55 watt part.
    add in 50 watts for all your other parts and your at like 250 watts max draw. Keep in mind that a 250 watt draw would only happen when every bit of the PC is being taxed to its fullest.

    I would get the cheapest gold rated 350-400 watt PSU I could find.
    Reply to bucknutty
  3. well i ran the items you have listed, through a wattage calculator, and they are actually gonna need 440 watts give or take
    Reply to Mt Power
  4. The calculater is wrong. Its way over estimating.
    Reply to bucknutty
  5. I would do what bucknutty said, that setup is not going to need that much
    Reply to Coedgy
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