Sign in with
Sign up | Sign in
Your question
Solved

Will a 700W 80+ Bronze certified PSU support GTX 780 SLI?

Last response: in Systems
Share
November 26, 2013 1:34:53 PM

Hello, I have a corsair GS700 series PSU that outputs up to 700w, with 80+ bronze certification. I have read some discussions about 750w psu and 780 SLI(700w discussions are no where to be found), and I have done the overall system wattage requirement calculation at the "extreme power supply calculator" site, the result ends up to be 649 watt recommended, but I still want to hear some suggestions from the ones that are experienced in this kind of setup, where the entire build only leave the PSU merely 50 watts of free space. I am currently using Intel i5 4670K, might consider overclocking to 4.0ghz which is only 200mhz above the boosted clock rate. Will the system be stable, and normally speaking, can a corsair 80+ bronze PSU support hardwares well at almost full load?
a b U Graphics card
November 26, 2013 1:36:09 PM

it should be fine but 750+ would be safer if you can afford it
m
0
l

Best solution

a b ) Power supply
a b U Graphics card
a b Î Nvidia
November 26, 2013 1:45:10 PM

extreme power supply calc sounds about right to me.
750W is definitely more of a recommended number, and there is definitely some sense in having headroom, but it's likely you'd be able to run them fine.
My question would really be, do you want to? Two GTX 780s is at least $1000 so stumping up ~$100 for a new PSU is a minimal expenditure, relatively speaking.
As soon as you start fiddling with overclocking, wattage predictions can be very hard to make.
Share
Related resources
a b ) Power supply
a c 81 U Graphics card
a b Î Nvidia
November 26, 2013 1:46:30 PM

I'd get a 850watt to leave headroom
m
0
l
a b U Graphics card
November 26, 2013 1:47:02 PM

go with 2 770's and put the money into a 1000w psu
m
0
l
a c 259 ) Power supply
a c 255 U Graphics card
a c 87 Î Nvidia
November 26, 2013 1:50:47 PM

NormH said:
go with 2 770's and put the money into a 1000w psu


2 x GTX 770s however, would be fine with a 750w unit.
m
0
l
a b ) Power supply
a c 81 U Graphics card
a b Î Nvidia
November 26, 2013 1:58:06 PM

yes thats good but why buy a 750 watt when u can get a 850watter for a bit more. and leave headroom for overclocking and more components :) 

m
0
l
November 26, 2013 1:59:07 PM

Thank you for the replies, I guess my attempt at cutting cost on PSU is quite unwise. I am not really on a budget, so I guess I will just go for a better PSU as well. Thank you again!
m
0
l
November 26, 2013 2:07:53 PM

800w at least, better be safe than sorry
m
0
l
a b ) Power supply
a c 81 U Graphics card
a b Î Nvidia
November 26, 2013 2:36:48 PM

Yep
m
0
l
a b U Graphics card
November 26, 2013 3:05:03 PM

Jackiel said:
Hello, I have a corsair GS700 series PSU that outputs up to 700w, with 80+ bronze certification. I have read some discussions about 750w psu and 780 SLI(700w discussions are no where to be found), and I have done the overall system wattage requirement calculation at the "extreme power supply calculator" site, the result ends up to be 649 watt recommended, but I still want to hear some suggestions from the ones that are experienced in this kind of setup, where the entire build only leave the PSU merely 50 watts of free space. I am currently using Intel i5 4670K, might consider overclocking to 4.0ghz which is only 200mhz above the boosted clock rate. Will the system be stable, and normally speaking, can a corsair 80+ bronze PSU support hardwares well at almost full load?


Honestly if i were you i would take advice and go with a atleast 850w power supply. Yes possible the 750w would work but your cutting it close with little to no head room and your going to sorta be setting your self up to possible getting another psu when you could of done it right the first time..
m
0
l
!