Recommended Power Supply

[shtubby]

I recently had the opportunity to purchase a third GTX 680 for a decent price so I grabbed it. Currently have it installed with my original 2 to make it 3 total in my gaming rig. One thing I forgot about was extra draw the third card would place on the system and while I haven’t seen any issues I can directly correlate to under-power, I do wonder.

I currently have a Corsair TX 850. I am running a Px79 PRO with a couple of SSDs, Optical drive, lots of fans  and other assorted goodies, not to mention tons of USB peripherals.

I feel I probably should replace it but thought I would ask. Is this enough power for this kind of setup? And regardless of the first answer, what would the you recommend for an upgrade?

Thanks for any advice!

 

[o1die]

I would just run it; you'll get random shutdowns or reboots if the power supply is reaching it's limit.

 

[shtubby]

Well I'm not seeing that but the fans seem underpowered now, in fact a couple stopped spinning completely until nudged with a finer.. Would that be a sign? These are some little fans that came with the RAM so I didn't give it much thought until now

 

[toyftw]

Well I'm not seeing that but the fans seem underpowered now, in fact a couple stopped spinning completely until nudged with a finer.. Would that be a sign? These are some little fans that came with the RAM so I didn't give it much thought until now

Hi - realhardtech (their expertise) suggests a quality 1050w PSU for a sys with
3 680's running 3xSLI. There's headroom built in so I'd say a khw would be more than
sufficient. You sys prob could run with the TX850 you now have. But personally I would
upgrade if you have the funds to do so.

A couple to consider:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151110 nets to $197

http://www.newegg.com/Product/Product.aspx?Item=N82E16817121068 nets to $155

http://www.newegg.com/Product/Product.aspx?Item=N82E16817494010 nets to $187