How much power does a 741 *really* use?  I have 245v at the wall, using the PSU above.  When I have two 741s running off one PSU, the PSU sounds like a jet engine.  When plugged into 3 of the 4 "cards" for two 741s, it sounds much better.

I've seen the 741 listed as using ~1150w, but I've also seen it say "+15%".  Which is it?  I have a killawatt, but it's the 110 version, so I can't measure the power usage.

Even if it's 1150w exactly, that's 2300w on a 2400w psu, which is pretty high imho.  I'm thinking two PSUs for three 741s is a much better idea.

Thoughts anyone?

M