Which modular PSU for (2) 7970s?

[I3eyond]

Have Corsair 750HX, really like it quite a bit. Would like to stick with Corsair.

What do I need?

 

[Zero82z]

The HX750 would be enough.

 

[I3eyond]

For two 7970s? Wow, that'd be awesome. . .

 

[Zero82z]

If you were buying new I'd suggest an 850W, but since you've already got the HX750, there's no real reason to buy something else.

 

[EquaLiZr]

System specs below. Im maxing out at 430W playing games (single player if that matters) and idle at 175W. 750W is plenty

 

[I3eyond]

I wish the Certified Power Supply list were a bit more updated

http://support.amd.com/us/certified/power-supplies/Pages/details.aspx?item=497

 

[jreinlie4]

AX1200.
Clean 1200w. Fully modular. 7 year warranty. Fat e-peen. The way of the [H].

 

[Ohmycaptain]

Corsair's AX series is my favorite tbh, get the AX850 or AX1200. All black cables make it clean in your case, and if you got the cash and want individually sleeved cables, Corsair is selling kits for their top-end PSU's for individually sleeved cables to replace the ones that come stock.

 

[magoo]

If you look at this......http://www.hardocp.com/article/2012/01/25/asus_radeon_hd_7970_video_card_review/8

The single OC'd ASUS 7970 system took up 600W of power from the wall.

Now if you put in another card.......well I think you would be getting very close to a REAL 650W
from the PSU, if it was 80% efficient......if you overclocked both cards using just CCC Overdrive.

I have a big system.......watercooled, OC 3930, and a bunch of fans, not to mention two 7970s.

I use the AX 1200.

 

[Chrisroman]

The AX750 could probably handle it, but for $100 more why not get the AX1200? For the price difference your getting a unit that won't be stressed, will run cooler, and live longer under the load your planning. And your far less likely to encounter PS issue which are a pain in the @$$ to diagnose and fix.

Personally, I don't get the minimalist attitude when it comes to RAM and power supplies. Reminds me of my dad that would always find the smallest pot in the kitchen to cook with. I can remember him hunting for this one particular tiny little pot to boil eggs in and then only put just enough water to get the job done.

And don't get me started on what he would do with the dishwasher...

 

[P4rD0nM3]

And you wouldn't be upgrading it or a long time.

 

[Filter]

Your 750 will be fine. But if you must corsair 1200