Is this PSU enough?

[znegval]

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

 

[dmblue]

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

http://extreme.outervision.com/psucalculatorlite.jsp

 

[geofelt]

PSU requirements are usually driven by the graphics card. The requirement for a 4600 series is 400W:
http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-4000/hd-4600/Pages/ati-radeon-hd-4600-system-requirements.aspx
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 http://www.jonnyguru.com/ for lots of good psu info.

 

[znegval]

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 jonnyguru.com.

 

[JohnnyLucky]

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.