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vid card power requirements?

 
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sv07
Pilgrim
Pilgrim


Joined: 02 Jan 2008
Posts: 3

PostPosted: Wed Jan 09, 2008 1:53 pm    Post subject: vid card power requirements? Reply with quote

Building a new rig, but I have a stupid question.

My anticipated power supply is rated at 17amps on the 12v rail.
The vid card I'm looking at says it recommends 18 amps.

Is this really a problem?

Parts:
PSU -Antec Eartwatts EA380
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371005

Vid- EVGA GeForce 7600 GT 256mb
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130062

Thanks in advance for any input.
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greytrains
Mobo-fu Master
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Joined: 10 Sep 2002
Posts: 2079
Location: Harney, MD

PostPosted: Tue Jan 22, 2008 10:36 am    Post subject: Reply with quote

I would upgrade your PSU up to a minimum of 450W. Most systems now days require a 500W PSU or better.
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Karlsweldt
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Joined: 12 Nov 2003
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PostPosted: Tue Jan 22, 2008 3:43 pm    Post subject: Reply with quote

The card itself doesn't demand all that power. The amount stated takes into account that other devices will draw power from the source, and it is advised to have the stated minimal limit. The actual power drawn by the video card may only be around 5~8 amps.
A definite advantage in having a PSU with greater wattage than needed. It is a good reserve, and will regulate more efficiently. A PSU will never "push" more power to a mobo than it requires. Unless, of course, it is under-sized and fails to regulate properly!
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