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The EXTREME Overclocking Forums are a place for people to learn how to overclock and tweak their PC's components like the CPU, memory (RAM), or video card in order to gain the maximum performance out of their system. There are lots of discussions about new processors, graphics cards, cooling products, power supplies, cases, and so much more!
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11-29-2010, 05:07 PM
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#1 | ||||
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.....18.5db.....
Senior Member
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Enough power to run 5870's in crossfire?
Just got a new power supply and a gigabyte 5870, Loving BF BC2 now, graphics are sooo good with dx11. I'm thinking about getting another gigabyte 5870 and was wondering if the Corsair HX 750 is enough to power the system? Cheers |
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11-29-2010, 05:33 PM
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#2 | ||||
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NAVIDIA Rocks!!!!!!
Senior Member
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I would imagine so, but best to check on one of the caluclators
http://forums.extremeoverclocking.co...d.php?t=125165 |
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11-29-2010, 05:50 PM
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#3 | ||||
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Je plie, donc je suis
Senior Member
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You'll be cutting it close, if you go xfire. Are you gaming at a resolution greater than 1900 x 1080, or are you using a multi monitor setup? If not, you may only need one 5870.
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11-29-2010, 05:52 PM
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#4 | ||||
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.....18.5db.....
Senior Member
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ok cool, it says my system will use 653w under peak load. Should the PSU cope ok, or would it run quite hot and loud?
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11-29-2010, 05:56 PM
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#5 | ||||
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Nine Inch Nails
Moderator
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Very nice tool. I never seen one of these before.
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11-29-2010, 05:56 PM
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#6 | ||||
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.....18.5db.....
Senior Member
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im gaming at 1900x1080 and the 1 monitor, I just would like to max any game at that res, i doubt the 1 5870 would be able to do that.
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11-29-2010, 05:58 PM
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#7 | ||||
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NAVIDIA Rocks!!!!!!
Senior Member
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from what I understand the more headroom you leave on the PSU, the longer the life expectancy will be. A corsair should deliver the rated wattage so you would probably be ok.
When I bought my last psu (upgrade from 500w) I got the 950w version cause with the rebate it was about the same as the 850, and I did not want to have to buy another psu for a long time. Additional Comment: Quote:
only reason to xfire a 5870 is to game in eyefinity. Last edited by prudhomb : 11-29-2010 at 05:58 PM. Reason: Automerged Doublepost |
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11-29-2010, 05:59 PM
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#8 | ||||
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.....18.5db.....
Senior Member
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ok cool, it says there is 62amps on the 12v rail and 744w so hopefully it should be fine.
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11-29-2010, 06:01 PM
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#9 | ||||
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NAVIDIA Rocks!!!!!!
Senior Member
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if its not enough power, good news is a corsair should not take the rest of your system down with it.
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11-29-2010, 06:04 PM
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#10 | ||||
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.....18.5db.....
Senior Member
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haha ok fair enough, yeah I can max out bf2 and it runs great even in the smoke, but i want the system to last a little while longer. From what i have seen the core 2 quads an the i7's arnt a whole lot different in games and thats all im wanting it for.
Last edited by titin200 : 11-29-2010 at 06:19 PM. |
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11-29-2010, 06:17 PM
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#11 | ||||
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6260Mhz e8600
Senior Member
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As long as you aren't anal about pushing OCs to the max, that PSU will certainly keep doing you fine. If you're a diehard bencher... well, you'll have to test if the increased load adds enough noise to your power rails that it effects your OCs.
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11-29-2010, 06:23 PM
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#12 | ||||
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.....18.5db.....
Senior Member
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ok cool, i will be leaving the cards at stock speeds, im not a big fan on fans getting too loud, it gets quite annoying, this is the card im using http://www.gigabyte.com/products/pro...px?pid=3355#ov
its pretty quiet which is good. |
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