Sign in with
Sign up | Sign in
Your question
Solved

r9 290 xfire 750w

Tags:
  • Systems
Last response: in Systems
Share
October 10, 2014 1:54:41 AM

So I was wondering if a rm series 750w psu would support 2 r9 290's? I have the sapphire toxic already OC card and was wondering if I got a 2nd would this 750w be able to handle it? The max a r9 290 gets to is like 220w, isnt it? so surely if i got 2 that leaves about 200w for cpu and other components.
I wont ever use stress testing on the powersupply or benchmarking.
Could this be done?

More about : 290 xfire 750w

October 10, 2014 2:07:56 AM

Max TDP of the R9 290 (stock volts) is 275W

AMD processors can require a lot more power than Intel processors.

750W is fine if your on Intel, at least 800W if on AMD

Add more if you running a lot of fans and drives/peripherals

Get a tier 1 PSU that has enough connectors for two cards:
http://www.tomshardware.co.uk/forum/id-1804779/power-su...
m
0
l
October 10, 2014 2:29:49 AM

huilun02 said:
Max TDP of the R9 290 (stock volts) is 275W

AMD processors can require a lot more power than Intel processors.

750W is fine if your on Intel, at least 800W if on AMD

Add more if you running a lot of fans and drives/peripherals

Get a tier 1 PSU that has enough connectors for two cards:
http://www.tomshardware.co.uk/forum/id-1804779/power-su...


I have:
intel i5 4670k-Stock fan and not overclocked
2x4gb ram
z87 hd3 mobo
2 x 1tb 7200rpm HDD
6 case fans
RM Series fully modular 750w psu
Nzxt hue
r9 290-factory overclocked
Is that too much? I got a fair few fans for good air flow, nzxt hue for decoration and the rest is pretty basic, could the 750 handle it?
m
0
l
Related resources
October 10, 2014 2:35:14 AM

Its a tight fit but it'll work as long as you don't overclock anymore.
m
0
l
October 10, 2014 3:01:00 AM

huilun02 said:
Its a tight fit but it'll work as long as you don't overclock anymore.


hmm,do you think it is a safe "tight fit" though,would it realistically exceed 750w? 2x275=550w
750-550=200w
cpu usage-?? cant find this info
2 hdd = 25w max
6 fans= 10w max
mobo = ??
ram= 5w max
this leaves about 160w for cpu and mobo. Is that good?
m
0
l
October 10, 2014 3:03:59 AM

i5 4670k gets 135 watts of usage leaving about 30 for mobo!
m
0
l

Best solution

October 10, 2014 3:05:40 AM

Your processor's max TDP is 84W. More than enough left for the mobo.

With everything at full load its close to your PSU's max output.

If you don't mind spending on a new PSU for more headroom, heres a list you can follow:
http://www.tomshardware.co.uk/forum/id-1804779/power-su...
Share
!