Sign in with
Sign up | Sign in
Your question

Will a 700 watt power supply be good enough for this build?

Last response: in Components
Share
August 9, 2012 10:43:55 PM

Basically the build is
i7-3770k (if i can ill overclock)
2x Radeon 6850's
Msi z77a-g45 mobo
8 gb of vengance blue 1600 mhz
the case is ThermalTake overseer Rx-i(needs power for leds)
2 led fans 200mm
1 tb western digital
2x cd/dvd-rw roms
the power supply is 700 watt 80+bronze ... its a TR2 700w
Please help ... the powersupply comes with the case on tigerdirect
a b ) Power supply
August 9, 2012 10:57:33 PM

Your setup should be in the neighborhood of 500W peak while the 700-TR2 appears to be a reasonably good unit (reviews say everything remains well within specs even beyond 700W) so there does not appear to be any obvious problems.
m
0
l
a c 157 ) Power supply
August 10, 2012 4:02:55 AM

+1^
m
0
l
Related resources
a c 165 ) Power supply
August 10, 2012 4:51:30 AM

you will be around 400w gaming so you will have plenty of power to spare
m
0
l
a b ) Power supply
August 10, 2012 5:10:45 AM

ct1615 said:
you will be around 400w gaming so you will have plenty of power to spare

I think you missed the part about the OP wanting to use TWO HD6850s. If a pair of HD6850s manage to work with a 400W PSU, the power budget is going to be awfully tight.
m
0
l
August 10, 2012 5:47:41 AM

Do you think this build is worth it? I spent 930 on all of it except the first 6850 because i already had it before when my old nvidia 8800gts burned
m
0
l
a c 111 ) Power supply
August 10, 2012 5:51:38 AM

I would really consider changing the PSU.
m
0
l
August 10, 2012 6:03:08 AM

Your system is good enough. If you are really worried a Corsair TX 750 v2 will not hesitate powering that setup.
m
0
l
August 10, 2012 6:13:14 AM

Stick with the power supply listed, as long as it delivers as promised, you will have plenty of power
m
0
l
a c 165 ) Power supply
August 10, 2012 12:03:17 PM

InvalidError said:
I think you missed the part about the OP wanting to use TWO HD6850s. If a pair of HD6850s manage to work with a 400W PSU, the power budget is going to be awfully tight.



i said "you will be around 400w gaming" not you need a 400w PSU which would be pointless since he already owns a 700w PSU :pfff: 

Measured power consumption two 6850 cards

System in IDLE = 186W
System Wattage with GPU in FULL Stress = 393W
Difference (GPU load) = 207 W
Add average IDLE wattage x2 ~ 19W (ATI specified)
Subjective obtained GPU power consumption = ~ 245 Watts


http://www.guru3d.com/article/radeon-hd-6850-6870-cross...



m
0
l
!