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Title: 12V power supplies for powering graphics cards Post by: louis_net on May 23, 2011, 04:41:18 AM http://cgi.ebay.com/Switching-Power-Supply-Transformer-DC-12V-30A-LED-CCTV-/110656523970?pt=LH_DefaultDomain_0&hash=item19c3a48ec2
AC input: 100-120V; 200-240V. Output: 12V , 0 ~ 30A . About 72% efficient, should be more efficient than running a normal psu just to power cards $40 to power two cards. Any thoughts? Title: Re: 12V power supplies for powering graphics cards Post by: error on May 23, 2011, 04:45:44 AM Something tells me that wouldn't be such a great idea.
The absolute first issue to resolve is wiring it up. Second is the low efficiency compared to PSUs designed for computers (which are generally 80%+). Title: Re: 12V power supplies for powering graphics cards Post by: Basiley on May 23, 2011, 04:47:16 AM any specs about this "12V" spectrum/fluctuations/stability ?
also this device is hardly designed to 24/7 operation. Title: Re: 12V power supplies for powering graphics cards Post by: louis_net on May 23, 2011, 04:53:42 AM dont foresee wiring to be too much of a problem, just more work
I guess i should buy one and stress test it some graphs on the output of this thing, read the 12v lines http://www.amiline.com/images/12v30a-2.jpg Title: Re: 12V power supplies for powering graphics cards Post by: smooth on May 23, 2011, 04:56:47 AM I see absolutely no reason to want to do this. It's only 360W and the efficiency is poor.
Title: Re: 12V power supplies for powering graphics cards Post by: Basiley on May 23, 2011, 04:59:57 AM 72% is poor efficiency, sure.
Title: Re: 12V power supplies for powering graphics cards Post by: Clipse on May 23, 2011, 05:30:50 AM At that cost you could just as well buy another psu
Title: Re: 12V power supplies for powering graphics cards Post by: Basiley on May 23, 2011, 06:29:02 AM At that cost you could just as well buy another psu sure. about $50 for similary-rate[on 12V] PSU's is quite usual and [slight]price difference was pay back in power efficiency very quick. let alone chances to realiably work long time for such stuff.Title: Re: 12V power supplies for powering graphics cards Post by: smooth on May 23, 2011, 05:38:55 PM Here you go, enough power for two cards (40A 12V output but you shouldn't draw that much, 30A should be okay though), 80+ bronze, and good reviews for $35
http://www.newegg.com/Product/Product.aspx?Item=N82E16817815007 You are just way off here. |
