Enabled quad crossfire freezes

[acewing2006]

Hello, I'm new to the forum community  so I'm sure I'm posting an issue that someone else has already had and has been solved *hoping*.

 

Anyways I am having a pretty big issue of getting my 4 7950s to run in quad crossfire. I've tested and used all 4 cards for a while on 2 different motherboards so I know they are all working. I recently decided to consolidate into one computer (why not right?). So i went out and got my hands on an Asus Maximus V Extreme motherboard. Updated the bios and plugged the cards in. Everything is recognized in bios and without quad crossfire enabled windows recognizes each of the four cards. I installed the latest drivers and installed the newest CCC, not beta*.

 

The problem is when I activate crossfire for all 4 graphics cards, 3 graphics cards or even 2 while all 4 are plugged into the board windows will freeze solid within 10 seconds. If I only have two cards plugged into the board and run crossfire everything is just fine though.

 

Some people might say its a psu issue but I've got a corsair 1200i platinum and ive been using it for a while without any issues.

 

At this point I could live with dual crossfire and find some other purpose for the 2 remaining pcie slots but I'd really like to see this dream come true.

[SparkySamZa]

have you tried turning it on and off again . sorry joke had to me made , but that sounds very strange cause AMD is known for it's, cross platform crossfire ummm. What CPU are you running under the hood ?

[Mateyyy]

what GPUs are those?

[mvitkun]

what GPUs are those?

 

 

Anyways I am having a pretty big issue of getting my 4 7950s to run in quad crossfire.

[acewing2006]

CPU- 3770k

RAM- 32gb corsair 1600 OC

MOBO- Asus Maximus V Extrerme

SSD- Dual 120 Samsung EVO 840

Storage- Dual WD Red 3tb

Cooling- Cooler Master Nepton 140xl

PSU - Corsair AX 1200i

GPU - Quad Sapphire 7950 3gb OC

OS- Windows 8.1

 

All settings are stock at the moment for stability and monitoring.

 

I might be doing a reformat of windows if I can't get this fixed but I doubt that will help 

[VintageCake]

There should be an extra power input on your motherboard for more power to your pci-e when running crossfire in general

[acewing2006]

Yeah I did that when I installed the motherboard

 

Well I reformatted my computer and did a clean install of CCC and all of my video drivers. Now my computer wont even do dual crossfire with no other cards on the board. I bought insurance for the board through microcenter. Guess I will be stopping by on monday although I bought the last one in stock...

[ManIkWeet]

Is that air cooled?

If so you can probably bake pizza between them

[acewing2006]

I'm gonna try and turn down the voltage and see if that helps at all. Last ditch effort before I trade it in for a P8Z77-WS...gonna miss the red and black.