Originally Posted by kazakia
So according to you a rig like this:
Oced E8400 ~100w
6x fans ~24
Thats 427w before the +100 you reccommend. which comes out to 527w
Funny thing is that you said most Power supply calculators over calculate and the most popular PSU calculator comes out at 331w. And the known to be over calculated Newegg PSU comes out to the exact same wattage as the way you calculated. However i used a 8800GTX instead of a GTX260 but they have similiar TDP 185w and 183w.
I would like to hear where you got these figures from.
I would estimate it like this:
Oced E8400 ~100-130w
GTX260 ~150w (~180 for 216 version)
HDD ~15w (1A each for 5V and 12V during normal operation)
Optical ~25W (models differ, it can be a little less like 15W)
6x fans ~24W (also depends on model)
2x2GB ~6W (one stick of ram is ~1A of 3.3V or ~3W)
A quality ~500W with ~35A on the 12V is pretty good for this setup.
This article has some useful power consumption figures: http://www.anandtech.com/casecooling...oc.aspx?i=3413
also has nice reviews for individual component power consumption. They've done a lot of testing of HDD power consumption and they have a good video card setup. They use 3dMark06 which isn't as stressful as some games and no where close to Furmark (so power consumption figures will be a little low), but it does give a general idea of what to expect and how power consumption can differ from TDP.