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How much power do I need?

Last response: in Systems
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October 7, 2008 1:08:08 PM

Hi, I was wondering what kind of PSU I should be running with my current setup. I've heard alot of different things about how much power is really needed to run your rig at its maximum potential.

I've got a Intel Q9550 Quad core
An XFX 8800 GTS 512MB
4(4x1)GB Corsair Dominator ram
One 10,000 RPM Hard drive and One 7,200 RPM drive
A Sony Sata DVD burner
3 23cm fans and a 120cm fan

Any input would be helpful, thanks!

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October 7, 2008 1:28:59 PM

I recommend Corsair and PC Power & Cooling. For your rig, a Corsair 550 or a PP&C 610(~$90-100) will work fine, I personally like the 610, but the 550VX(~$75) is cheaper.
October 7, 2008 1:46:38 PM

I guess im not very familiar with PP&C, anyone got a link to one? What are its advantages over other power supplies? I like corsair, I've just never heard of PP&C
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October 7, 2008 1:47:37 PM

+1 for Corsair VX550. Heck, even an Antec earthwatts EA430 or Corsair VX450 would work, but it's nice to have a little more than is necessary.
October 7, 2008 1:49:09 PM

jeremy9174 said:
I guess im not very familiar with PP&C, anyone got a link to one? What are its advantages over other power supplies? I like corsair, I've just never heard of PP&C

PC Power and Cooling makes some of the highest quality PSUs money can buy. Seriously their PSUs are legendary.
October 7, 2008 1:54:45 PM

I think i have an extra 500W PSU lying around some where but it may be kinda old, is there any new technology in PSUs that i would need? or would my 1-2 year old 500W PSU be ok?
October 7, 2008 1:57:43 PM

I see things like "Quad core CPU Support" is that just a gimmick or something that might help me?
October 7, 2008 2:35:13 PM

It depends on the quality of your 500w psu. If it's generic or no name then I would not use it 'cause most no name psu's are not really good. Some are rated for 500w and can't even put out 350w in real life situations. Remember that if you stress your psu too much it can fry and take out other components with it like ram, cpu, mobo, video card ... do you think it's worth the risk ?

That's a nice rig you got so I would not skimp on the psu, as others said Corsair is a good brand and so is PC Power & Cooling, Antec is also good as are the new psu's from BFG.
October 7, 2008 2:49:12 PM

You can buy the new connector adapters if they are not included with your PSU.
October 7, 2008 3:14:35 PM

huron said:
For everyone here. I found this to be very interesting. It gives some great perspective. The comments give a link to a more complete list of GPUs and their power consumption.

http://anandtech.com/casecoolingpsus/showdoc.aspx?i=341...


I've read that article already and I think they are right .... but I think it is better to have more power (30 to 40%) than needed so your psu will not be running at full capacity all the time. According to the article you linked , with my system I would need between 350 and 400w so I know that with a 650w psu I will be fine.
October 7, 2008 3:34:28 PM

jeremy9174 said:
would my 1-2 year old 500W PSU be ok?
Would need to know the make and model of PSU. It might be one of those bargain PSUs that have a 500W stick on 400W hardware.


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