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Corsair tx750 with dual 6950 n overclocking

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  • Power Supplies
  • Overclocking
  • Corsair
  • HD
  • Components
Last response: in Components
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December 8, 2011 9:33:14 AM

hello, can corsair tx 750w handle hd 6950 cfx and overclock at the same time?

More about : corsair tx750 dual 6950 overclocking

a b K Overclocking
December 8, 2011 9:59:22 AM

hi @Muhamad86,
this situation become dangerous with fitting 2 6950 even with overclocking don't do that get at least 850w
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December 8, 2011 10:02:32 AM

so i have to go with corsair tx850? any suggestion other psu brand?
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December 8, 2011 10:03:55 AM

also i have dual 5850 with corsair hx-650, how that is it okay?
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a b K Overclocking
December 8, 2011 10:06:34 AM

yes, of course look at cooler master silent pro 850w.
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a c 87 ) Power supply
December 8, 2011 11:55:13 AM

It does kind of depend on the rest of the system, but unless you are running a boat load of power hungry monsters then yes a high quality 750W PSU is more than enough for a system with two 6950s.

http://www.anandtech.com/show/4061/amds-radeon-hd-6970-...
6950 Crossfire Power Consumption:
Idle = 169W Load - Crysis = 470 Load - Furmark = 509W
As you can see on an unrealistic Furmark load a system with two 6950s uses well below 750W.
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December 8, 2011 11:59:18 AM

what about corsair hx650 with dual 5850?, is it okay?
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a c 144 ) Power supply
a c 197 K Overclocking
December 8, 2011 12:05:58 PM

A pair of 6950's will pull about 24 amps, peaking to 28 amps. Figure 10 amps for an OC'd CPU. That is around 450 watts.

Figure 40 watts for a couple of hard drives and an optical and another 80 - 120 watts for the motherboard and RAM.

That is around 600 watts. A Corsair TX750 will be operating at around 80% of rated power at peak computer loads. I'd prefer a somewhat larger power supply, but a good 750 watt PSU is perfectly adequate.

2 5850, and an HX650 (50 amp rail):
5850's are pretty efficient. A pair of them will pull about 20 - 24 amps. CPU - 10 amps. That's around 400 watts. Add another 100 - 120 watts or so for the rest of the system and you are up around 520 watts for about the same load factor.

The CM 850 w Silent Pro seems to be a pretty good PSU - especially for CoolerMaster:
http://www.hardwaresecrets.com/article/810
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a b K Overclocking
December 8, 2011 12:07:12 PM

yes it is fine.
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Best solution

a c 111 ) Power supply
a c 150 K Overclocking
December 11, 2011 3:21:00 AM

I am running both of my 560ti's an oc'ed 2600k perfectly fine on my antec high current 620w. I asked a similar question a few months back and people said it would perfectly fine to run 2 6950's or 560ti's on a efficient 620psu. You should be fine.
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December 17, 2011 10:58:56 PM

Best answer selected by Muhamad86.
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