How much power to run 2 GTX285 in SLI?

One GTX 285 will draw a total of just over 15A at maximum load (card only). Assuming you need to allow for 32A with 2 of these cards, the TX750W with 52A will be ample to run that system with 30A (360W) for the rest of the system, due to its high efficency and single powerful rail.
 
In my opinon yes, providing you don't need say more than 20A (240W) for the remaining system (left a bit out because you don't want to run a psu at max).

good luck
 
Forgot to say.

How much power would this rig need?

Core i7 920
X58 mobo
6 gigs RAM
2 x GTX285
2 HDD
1 DVD drive
Floppy drive
7 case fans

Will a TX750 handle that?
 
I basicly have that same system and am using a 1000w I know that doesnt directly answer your question but just thought id let you know
 
a review on Guru3D, states that it uses 560W on load with a core i7 rig

doesnt state the amperage...

So i think a TX750 will manage
 
nVidia states the 15A per card at max i quoted before. I simply doubled that figure for 30A for two cards, then decided that a PSU such as the TX750W with 52A on a single quality rail would be sufficient.
 
@Computer_Freak

Corsair sells the PSUs so of course they'll say something much higher :P

The Newegg calculator tells you 40W per HDD, which is absolutely ridiculous, your average modern 7200RPM drive consumes 1A on 12V and 1A on 5V absolute max, which is 17W at most, on average 10-15W depending on amount of platters
 
You must log in or register to reply here.
Back
Top