crossfire issue p9x79 deluxe Firepro v8800
Greetings,
I know Ive allready posted this on HARDforum ( username: CADharsis ) but I thought, more eyes on this might be helpful to solve this issues.
so here it is:
I`m constantly getting a systemfreeze, when trying to enable CrossfireX (or shortly after) on my two Firepro v8800. I`ve never had any problems with this cards in my old system and both of them seperated are working without any issues in this new build. I had even tested them together (Crossfire disabled) in luxmark and and Aida64 with no Problems.
my System Specs:
MB: Asus P9X79 DELUXE (BIOS 2002)
CPU: i7 3960x
GPU: 2x FirePro V8800 (Driver 8.911.3.3000 isv)
RAM: 2x Corsair CMX32GX3M4A1600C1 (64GB)
PSU: Corsair TX850W
SSD: Crucial M4 256 GB
O/S: Windows 7 64bit Professional SP01
I did a clean Win7 installation I updated every driver and the MOBO (2002) BIOS... recognized that the newest chipsetdrivers are more than one year old.
I also tested older GPU drivers.......no luck
The system is prime95-stable both cards did very well running Furmak.
Memtest shows no issues.........
The cards are installed in slot 1 and 4, as recommended. Ive allready tested the other ones with same results
My old System had never had any problems running both cards in CF
All Temps are OK.....I don`t know what to do anymore
any suggestions?
thank you