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400w is ok for my specs (i5-2500k, hd6850)?

Last response: in Components
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March 26, 2012 4:34:22 AM

im going to buy HD radeon 6850 and i dont know if my psu can handle it.

this is my specs*

processor: i5 2500k
mobo: foxconn z68
ram: 2x kingston 4gb
HDD: Western Digital 500gb
PSU: Qube extreme 400w rated psu.

i will buy this in 2 weeks :D 

Best solution

a c 144 ) Power supply
March 26, 2012 5:58:58 AM

I cannot find any specs on your power supply. That leads me to conclude that it is a cheapy.

Figure 10 - 12 amps (at 12 volts) for the 6850 and 10 amps for the CPU. Figure another 3 amps for HD, optical, and fans. That's 23 - 25 amps just at 12 volts. That doesn't include the 5 volts for the digital logic or 3.3 volts for the memory.

The absolute bare minimum PSU I would use is the now discontinued Corsair 400CX with its 30 amp 12 volt rail.

I'd probably use a good 550 watt PSU (Seasonic, Corsair, XFX, or Antec), certainly nothing less than a good 500 watt PSU.
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March 26, 2012 7:07:27 AM

On that system I would go with a Corsair CX500 or a CM GX550 Bronze.
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March 26, 2012 7:10:02 AM

Don't cheap out on your PSU...it'll end in tears. If you're overclocking and running a reasonably new GPU, you'll need 500W minimum.
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March 26, 2012 7:10:16 AM

Don't cheap out on your PSU...it'll end in tears. If you're overclocking and running a reasonably new GPU, you'll need 500W minimum.
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a b ) Power supply
March 26, 2012 8:13:03 AM

That system will run on an Earthwatts 380W but your current PSU is crap.
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March 28, 2012 1:09:01 AM

Best answer selected by keenanfullbuster.
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