Is this PSU enough?

Hello. I have a 460w extreme power plus PSU from CoolerMaster and since I know nothing about PSUs I decided to ask the community if this one would suffice for running the following system:

P7p55d Pro mobo + Core i5 750 + 4GB Corsair 1600mhz 1.65v + HD4670 + 2 HDDs. No overclocking intended.

I'm looking forward to upgrade to this system but I'm kind of low on money. I wonder if my PSU will handle it without, you know, blowing everything up or something. I should be able to get a better PSU in a couple of months to replace this one. In fact I'm saving money for some more robust power supply like a Corsair 750w for future-proofness. Well the eXtreme Power Plus had served me well on my Athlon x2 4000+ system so far but I assume the i5 platform would be more power hungry.

And (why not) if you have some good reading about PSUs let me know, so I won't have to come back to ask the same kind of question in the future.

Thanks :)
4 answers Last reply
More about enough
  1. Have you checked PSU calculators. although they are not 100% accurate they can give you a decent idea of what you need.

    This one is pretty cool
  2. PSU requirements are usually driven by the graphics card. The requirement for a 4600 series is 400W:
    Only if you had many hard drives or other components would that change; you should be OK.

    Newer systems tend to be MORE power efficient, not less, since they use a smaller manufacturing process.

    Go to for lots of good psu info.
  3. I did use a PSU calculator but I also question the quality of the product. I could easily buy a 700w+ power supply manufactured from some company I never heard of. As for the graphics card, I belive the 4670 is not that hard on the PSU. It doesn't even use a separate power connector but draws power directly from the PCI-Ex bus. Plus I was worried a 4 core solution would be more power hungry than a low end 2 core though I see your point there geofelt: my previous system was a 65nm one.

    Well I'll just go for it since you guys seem to see no problem with this. Thanks! And I'll spend some time at
  4. You'll be fine.

    ATI Radeon™ HD 4600 System Requirements

    PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard

    400 Watt or greater power supply

    550 Watt or greater power supply for ATI CrossFireX™ technology in dual mode.

    Those recommendations are for an entire pc system.
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