Crossfire - PSU advice

[TheLostOne]

Hey there

Well the situation is I don't know whether my Corsair AX860 power supply is capable of running two Sapphire Radeon R9-280X Vapor-X and a AMD FX 9370 CPU. I watched TTL's video about the RM450 powering a 780Ti and a i5, pretty amazing! I also saw that TTL is running a i7-3960X and a couple of Asus 7970 of an AX860i...... Sooo maybe/maybe not

Sys spec:

Asus Crosshair V Formula-Z
AMD FX 9370 @ 4,72GHz at 1.450V
Sapphire R9-280X Vapor-X @ 1100/1600 at 1.200V
1 SSD
2 WD green harddrives
8 fans total, CPU fans included

System peaked at 620W (measured of wall socket) with prime95 small FFT and MSI Kombustor running max preset 1080p

PSU calculators recommend at least 860+

If more information needed, just ask Thanks in advance!

 

[lAnimal]

According to this: http://coolermaster.outervision.com/PSUEngine you might be good (it's saying 783w+), but have you had any trouble with it so far?
I would say it should be okay but there are a lot more people on here that know more than me...

 

[TheLostOne]

Well I haven't bought the second gfx yet, wanted to wait to see peoples responses . I thought too it will work out but I'm still uncertain.

Thx for reply

 

[NeverBackDown]

You will be fine and wont have to worry.

 

[TheLostOne]

Awesome thanks! Even if CPU is overclocked and graphics a little bit?

 

[NeverBackDown]

Should be fine. If you hear the fan spin up then you know the PSU is actually working a little bit harder but as long as it doesn't get loud then nothing to worry about.

 

[TheLostOne]

Thanks alot, will pay attention to noise then

 

[Excalabur50]

I use an AX850 for my 7970's and have no problems at all an 860i will be perfect

 

[TheLostOne]

Ah nice! Well then I would look forward to crossfire