quick wattage check

[Humate]

I want a PSU that will be able to handle 2x 7900gtx Sli, 12 hard drives, 1 optical, and the usual (probably go conroe sometime, but a64 4000+ atm at stock), with a bit to spare. Will this 900w tagan be sufficient?

Tagan TG900-U95 900W ATX2.01 Turbojet Quad SLi Silent PSU (CA-011-TG)

How much power do the 7900gtx's need in sli?

Thanks

 

[Humate]

Thanks for the replies

I dont have 12 hard drives atm... theres only 5 SATA drives in there (although i have about 4 other IDE drives that i need a controller for that arent in the machine). But i have a CM stacker and plan to fill it in time. Just wanted a PSU that was future proof. I also have a 500w PSU from pc world in there, heh. I suppose i can use that to run the drives, and maybe buy a smaller PSU... i just fancied one bad boy instead

oh by the way... thanks for that PSU calculator... it says 609w with all that stuff (11 hard drives, and 7900gtx in sli).

 

[Humate]

Ok thanks guys, keeping my current 500w psu and getting something around 600w is gonna save me a load of money too, which is always a bonus.