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Old January 11, 2010, 12:01 AM
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Agreed. I just picked up an HX850 recently and it is very quiet.
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Old January 11, 2010, 12:24 AM
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500W is without a doubt enough. It seems to be the 'in' thing to over estimate how much power computers need. 2 HD4980s and an i7 @ 4.4GHz consumes less than 400W. Put a kill-a-watt on your outlets that your PC is attached and I bet you'll be pleasantly surprise. Ok 500W may be pushing it a bit. But 550W would be enough

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Old January 11, 2010, 12:32 AM
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Quote:
Originally Posted by lowfat View Post
500W is without a doubt enough. It seems to be the 'in' thing to over estimate how much power computers need. 2 HD4980s and an i7 @ 4.4GHz consumes less than 400W. Put a kill-a-watt on your outlets that your PC is attached and I bet you'll be pleasantly surprise. Ok 500W may be pushing it a bit. But 550W would be enough

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From nvidia site, each GTS 250 draws a max of 150W.

4x 150W = 600W..

500 is enough?

I too am going to say 850W. 750W being borderline. 500? Nope! Not for me...
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Old January 11, 2010, 12:49 AM
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unless theyre 100 watt units than cpu and rest 100 watts..hmm..if the psu is top notch itll do it. but 100% load 24/7 hmmmmmmmm..unless its a 600watt with a 500 sticker...hmmmmmmmmmm
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Old January 11, 2010, 01:32 AM
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I agree that the power requirements of computers today are greatly exaggerated... That said, I've always believed it doesn't hurt to have a little extra so that you are not pushing your psu close to it's maximum output. I personally wouldn't feel comfortable running all that gear with a 550 even a 650, although it may very well get the job done. Better safe than sorry

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Old January 11, 2010, 02:25 AM
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I'll let you know if my 4 9800 GT cards + OC'd 955be blow up my PC P&C 750W...... ;)
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Old January 11, 2010, 11:26 AM
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I wouldn't be too confident with a 500W sitting in there.
My APC shows 496W from my system ATM.

1 EVGA 9800GX2
1 EVGA 9800Gt
1 965BE.
1 HDD, 1 Optical
10 Fans.

Not sure I'd want to put 4X GTS250s' in on that to be honest.
Espically if you are going up to the max capacity you will shorten the life of it for sure.

If you want a good budget one, the Silverstone Strider Plus 750W is a good price now and its 60A on the 12V rail with 80PLus Silver.
I have one right now and I wouldn't look back.

ST
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Old January 11, 2010, 11:36 AM
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Quote:
Originally Posted by Soultribunal View Post
I wouldn't be too confident with a 500W sitting in there.
My APC shows 496W from my system ATM.

1 EVGA 9800GX2
1 EVGA 9800Gt
1 965BE.
1 HDD, 1 Optical
10 Fans.

Not sure I'd want to put 4X GTS250s' in on that to be honest.
Espically if you are going up to the max capacity you will shorten the life of it for sure.

ST
Take the PSU efficiency in to that as well. Assuming 80% efficiency you are only pulling ~ 400w from the PSU. Is your CPU overclocked? This will also make a huge impact on power usage.
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Old January 11, 2010, 11:36 AM
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Corsair HX650W will be enough. 500W is pushing it, though doable.
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Old January 11, 2010, 11:43 AM
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Quote:
Originally Posted by lowfat View Post
Take the PSU efficiency in to that as well. Assuming 80% efficiency you are only pulling ~ 400w from the PSU. Is your CPU overclocked? This will also make a huge impact on power usage.
80 Silver (HX750W).

No Overclock.

I wouldn't be putting a 500W in that system even if it would run it. Putting a PSU that close to its Peak Output is asking for trouble no matter what.

ST
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