99 Problems, Crossfire is all of them...

Radeoncore

Reputable
Apr 25, 2014
33
0
4,540
System Specs:
Asus Sabertooth 990fx (2501 bios)
2 Gigabyte R9 290x 4gb video cards (fan profile switch to high performance, bios 015.042.000.000)
2 Corsair Dominator Plat 4gb sticks DDR3 1866
Samsung 840 Evo 120gb SSD
Seagate Barracuda 1tb mech drive
AMD FX 8350 CPU
Corsair H100 liquid cooler
Seasonic X series 1250w PSU
Various USB devices

Originally I had two R9 280x Rev1.0 running in crossfire, had trouble with them, at some point they were working very well (Installed in slot 1 and slot 2) but running very hot. I moved the secondary card to slot 3 (Mobo manual recommends slot 1 and 3 for Crossfire). After that, the secondary card started giving me problems. So, I tested them separately and confirmed secondary card failure in 3d mode. RMAd the card, first replacement caused system crashes and shows numerous errors during OCCT testing. Second replacement was a new Rev2.0 280x and I put it in the primary slot and the working rev1.0 I put in the secondary slot, the rev2.0 died (screen was jumping and caused system crash in 3d). Third RMA was another rev1.0, it also gave me issues as well. So, I got a model upgrade and traded both my 280x cards in for two 290x cards. Both of which, as far as I can tell were brand new, I put them in my system, booted it up, did a clean install of my AMD drivers ver. 14.9, secondary card failure in slot 3. Moved it to slot 2 and gave same behavior.

I tested the bad 290x on its own and discovered that during testing in GPUz it would give me horizontal black lines and screen flickering, eventually the PC froze up and I had to reboot. After that, I tested BF4 with the bad card and saw blue artifacting in what seemed to be a pattern, but they were little blue squares (Vram issues?). I can't for the life of me decide whether or not my motherboard is causing these problems as I've gone through so many video cards at this point (four to be exact) and it's always the replacement that dies, or the secondary card on a brand new set. I'm afraid to test other cards due to the risk of killing them as well. So, I'm asking for you help!!! Any assistance is very appreciated!
 
Solution
What revision of the Sabertooth are you using? I'm assuming it's Rev 2 since that is the only AM3+ board that has PCI-E 3.0 slots. I feel awful for you if you went through Gigabyte's RMA process.

The best bet would be to contact Asus's customer service and ask them about it and to possibly receive another motherboard as your lanes could be causing issues but I find it strange when any TUF or ROG board gives anyone trouble.

dovah-chan

Honorable
What revision of the Sabertooth are you using? I'm assuming it's Rev 2 since that is the only AM3+ board that has PCI-E 3.0 slots. I feel awful for you if you went through Gigabyte's RMA process.

The best bet would be to contact Asus's customer service and ask them about it and to possibly receive another motherboard as your lanes could be causing issues but I find it strange when any TUF or ROG board gives anyone trouble.
 
Solution