power supply requirement

[silvscorp]

Is a 430w PSU enough for e8500 oced at 3.6ghz, 4gb ram, and HD7850 GPU and 2 SATA HD?

I tried couple power supply calculator but results varies by a lot. For HD7850, hwcompare.com shows power consumption at 130W but some other sites claim close to 300w at max load.

Of course a bigger PSU will solve the problem but I just want to know a 430w is enough.

thanks,

 

[lehtv]

What 430W PSU?

 

[Puppies04]

430W will be fine as long as it is a "decent" brand.

 

[silvscorp]

it's a seasonic one. I understand PSU quality will effect the efficiency. I just want to find out if this seasonic 430w psu is fully capable and not just barely enough.

thanks,

 

[lehtv]

it's a seasonic one. I understand PSU quality will effect the efficiency. I just want to find out if this seasonic 430w psu is fully capable and not just barely enough.

thanks,

Efficiency is not relevant. Quality PSUs can supply stable voltages all the way up to the rated wattage which they should be able to output continuously. And they have working protections in place to prevent damage to the PSU or other components.

Seasonic 430W will handle your system fine but I'd limit OC on the 7850 to stock voltages.

 

[sm625]

some other sites claim close to 300w at max load.

That is 300 watts in an i7-9xx or i7-3xxx SB-E testbed. A penryn system sans gpu at 3.6GHz is going to pull around 130 watts from the wall. Total should be around 250. Absolute peak might be 270.

 

[silvscorp]

thank you!!