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Is this PSU good enough?

Last response: in Components
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May 27, 2011 3:06:11 PM

I bought this PSU on a shell shocker deal for $57 ($37 after mail in rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
and was wondering if it could eventually power dual 6850's (no plans to OC, since I doubt I can OC dual 6850's on a 600W)

I'm currently building my system and am waiting for bulldozer processors to come out before making a final decision on CPU, although it will probably be either a new bulldozer or a i5-2400 (from early rumors the bulldozer will probably be 95W TPD like the i5, I have no plans to OC the processor so a 2400 is enough for me)

I'm planning on running at most 2 HDD's and a SSD (future upgrades starting with a single 1tb F3)

my current resolution is only 1440x900 so I know a 6850 is enough, however my first future upgrade will probably be a 1080 monitor, and I want to beable to upgrade to crossfire in the future

If the PSU is not enough, I'm debating buying a 6950 right now instead and overclocking later if I feel the need

I probably won't respond for the next two days since I'm traveling but I will look for recommendations as soon as I get back

More about : psu good

a b ) Power supply
May 27, 2011 4:40:48 PM

For whatever reason, that link doesn't work. What's the PSU model?
What do you mean, no plans to OC? Why the heck not?
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a b ) Power supply
May 27, 2011 5:20:47 PM

No, According to some PSU calculators and myself, a 600W PSU can't handle the two 6850s anf i5-2500 and your remaining setup. So at least get a +700W PSU


Regards...
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a c 275 ) Power supply
May 27, 2011 5:33:20 PM

It would work imo! since a 6850 only needs one 6pin pcie lead..
2X6850 = just under 400W on an oc'd i7 965 full load entire pc.
http://www.guru3d.com/article/radeon-hd-6850-6870-cross...
You're not using an i7 9xx cpu.
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a c 126 ) Power supply
May 27, 2011 5:43:28 PM

Oh you're fine. Throwing in five fans, and a couple of external USB devices, with 10% capacitor aging (even though this is a new system), I got only 476W using the PSU calculator at http://www.extreme.outervision.com/PSUEngine. Enjoy your build.
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a b ) Power supply
May 28, 2011 8:44:03 AM

agree, will work fine. You could run 2 6850's in crossfire if you really wanted to.
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a b ) Power supply
May 28, 2011 9:06:05 AM

You'll be fine. A single HD 6850 consumes about 90w under normal gaming conditions and an i5 2400 consumes about 55w @ 100% utilization.
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a c 92 ) Power supply
May 28, 2011 9:30:18 AM

I think the TDP of the 6850 is around 130W. I know its more then 90W. Two in CF would be 260ish, round up to 300W for your board and other stuff. Even if you were using a 95W CPU, your still at just under 400W for the system. Your PSU has a single 40A rail, so you have 480W available. I agree that you should be fine.
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May 28, 2011 9:56:44 AM

davcon said:
It would work imo! since a 6850 only needs one 6pin pcie lead..
2X6850 = just under 400W on an oc'd i7 965 full load entire pc.
http://www.guru3d.com/article/radeon-hd-6850-6870-cross...
You're not using an i7 9xx cpu.



But there are some 6850 that need two 6 pin pcie lead, like my ASUS EAH6850 DC/2DIS/1GD5/V2, but then again, it oc's great ;) 
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a b ) Power supply
May 28, 2011 10:12:29 AM

theDanijel said:
But there are some 6850 that need two 6 pin pcie lead, like my ASUS EAH6850 DC/2DIS/1GD5/V2, but then again, it oc's great ;) 

even if it needs 2 6 pins, you can just use adaptors. there is no real reason to have 2 6 pins, they dont use that much power.
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May 29, 2011 2:07:19 PM

Thanks for all the replies guys, I guess I'm going to go with 1 6850 for now and upgrade to crossfire when I feel the need
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May 29, 2011 2:28:47 PM

Best answer selected by juntaozhu15.
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