I just set up a crossfired Sapphire 7970 OC boost and Sapphire R9 280x OC boost. Set up went smooth and the cards scale as they should in xfire. Tests run Valley, Heaven and 3dmark 11. I also ran several of my games BF3 Sniper Elite V2 Nazi Army etc. All scale 100%.
Here is the issue if I let the rig sit for awhile and attempt to start lets say a game or firefox the PC will freeze. (the two times it happen was once after a hour no use and the other after I left my pc on over night). I then came to the conclusion that the second card (7970) might be having troubles awakening from ULPS.
Is this common? The last xfire setup I had was two Sapphire 6970s and this never happened. I know firefox activates the second card in my old 6970 xfire rig I had the cards OCed and you can hear the second cards fan kick in when you start the browser and a game or benchmark that uses xfire.
I ran regedit and changed EnableUlps to 0 and currently have firefox open to see if the issue continues and something else is causing the system to hang (which I seriously doubt). I am using the 14.4 drivers on Win7 Ultimate 64. Again is anyone else having this problem? Detailed specs are in my sig and my OC is 100% stable. This does not happen with one card in the system. Any input or help.
FX 8320 @ 4.9_H100i_Xfire Sapphire HD7970/R9 280x1100/1500_ 8gb G.Skill Ripjaw DDR3_Asus Sabertooth 990FX_120GB Corsair Force SSD_64 GB Samsung SSD_1TB WD Black_150GB WD VelociRaptor_150GB WD Raptor_CM HAFX_XFX Pro 850 Watt PSU_Bluray Drive_Asus 25in 144htz_Sidwinder X6_G9x_Z5300 speakers Rig 2: PII X4 email@example.com_GB990FXA_ Gigabyte 560ti 970/1800_4GB DDR3 Corsair Dominator_150GB WD Raptor_Ultra 550 Watt PSU_acrylic tech station_logitech G15_G500_Samsung 32in
09:41 AM by