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

[keenanfullbuster]

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

 

[jsc]

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.

 

[sarinaide]

On that system I would go with a Corsair CX500 or a CM GX550 Bronze.

 

[diellur]

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.

 

[diellur]

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.

 

[FinneousPJ]

That system will run on an Earthwatts 380W but your current PSU is crap.

 

[keenanfullbuster]

Best answer selected by keenanfullbuster.

 

[keenanfullbuster]

thanks for the tips )