PSU for Sandy Bridge Build

daddyorchips · 8 Jan 2011 at 17:07

I've currently got a Corsair 620HX powering the rig in my sig.

I'm due to pick up another 6950 for some Crossfire action, to couple with a Sandy Bridge upgrade (i7 2600K, Asus P8P67 Pro, 4GB Geil DDR3) and am wondering whether I'll need to get another PSU? I know Gibbo said that 2x6950's ought to work with a 620W Corsair PSU in a user's PC that was of a similiar spec to mine, but I'm guessing the new rig will push it over the edge.

If so, can anyone recommend a replacement power supply? I quite like the modular design of my Corsair, but it's not a must.

Ta :cool:

RJC · 8 Jan 2011 at 17:13

In gaming you would be looking at 400w ~, have a look at the link below:

http://www.anandtech.com/show/4061/amds-radeon-hd-6970-radeon-hd-6950/24

daddyorchips · 8 Jan 2011 at 17:14

Figures.

I'm leaning towards a Corsair HX850 atm.

RJC · 8 Jan 2011 at 17:16

Don't forget that is total system load.

Your current PSU would be ok.

daddyorchips · 8 Jan 2011 at 17:17

I've only got a couple of hard disks and one optical drive on top of the above, plus a few USB devices. Are you saying 850W won't be enough?? Ouch :-/

RJC · 8 Jan 2011 at 17:25

No... Your current PSU 620w should be enough!!

daddyorchips · 8 Jan 2011 at 18:12

RJC said:
No... Your current PSU 620w should be enough!!

Really???

Sweeeeeeeeeet :cool: