SAPPHIRE HD 5870 PSU Question

[OVC]

I'm looking at getting two 5870 cards and running them in Crossfire mode, although I think the PSU should be ok I just Want to double check. I have an ENERMAX 850W Revolution with a a Peak Powr of 1020W and a UPS of 1000W/1400VA with 70A Rails I'm thinking this should be ok running two 5870? I bl***y hope so.

Rig
Intel Duo Core 2 Quad 9650 3.6GHz (OVC)
Corsair XMS3 DDR 3 1600 8GB
ASUS Rampage Extreme X48
Windows VISTA Ultimate 64-Bit (soon to be Windows 7 Ultimate 64-Bit)
ENERMAX REVOLUYION 860W PPSU

previously run 2x Sapphire 4890 OC Edition GFX cards CrossFire together and it handled very well.

 

[Happy]

It'll easily cope, I would imagine they would run fine of a 650W (not with i7), so yours will easily run them.

 

[TheMorningStar]

BOOM! headshot!

 

[Happy]

http://www.guru3d.com/article/radeon-hd-5870-crossfirex-test-review/3

On Seconds thoughts maybe not on a 650W, but 700W+ would be fine.

 

[OVC]

Chears guys, always best to double check although I already run a test I just wanted an opinion as well. The Revolution is a good PDU it has a good PP and UPS. probably one of the best I've ever used. I've been using Enermax for years now and never once had a problem with them.