Need a PSU?

[chesss]

Intel C2Q600 - 200W
4x1GB DDR2 667MHz - 15W x 4 = 60W
ATI HD 5850(will by soon) = 200W
2x500GB HDD Seagate 7200.12 = 2 x 30W = 60

Don't take my reply personally, but can you back these numbers with some source ?

As seen here a Core 2 Q6600 system consumes only 200W under load .
Here is another link that again shows the power consumption of a Q6600 system to be only 200W under load AND 230W after overclocking .

 

[asingh]

^^

That is why I quoted those figures. So the PSU is calculated at LOAD. And the +30% is for OC, or future upgrade...?

Makes sense..?

See, when calculation PSU, there is no exact science. It depends on experience. From what all I have read --- best to take a standard of 200W for GPU (single PCB) and CPU respectively.

I calculated my Xfire in such manner, and am fine.

What you feel, I quoted too low numbers, or are they too high..?