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Is this PSU enough?

Last response: in Components
December 15, 2009 9:24:31 PM

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 :) 

More about : psu

a c 144 ) Power supply
December 15, 2009 9:35:45 PM

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.
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December 15, 2009 9:53:35 PM

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
a c 248 ) Power supply
December 15, 2009 10:02:56 PM

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.