Hi, i have a rig of x5 5850, custom case, so all the GPU are realy separated from each other and all with risers....To power is suplied by 2 x CL SP 700w, and the temperature never never go more than 52c. The fact is that i cant overclok the rig more than 850/300 so im onl getting 340mhs wich is realy bad for a 5850.
When i try to go more than 850 it fails. The OS (BAMT) stops responding so i have to reboot manualy the rig. Dont know wich the problem could be. I have to change the OS maybe ?
If your using windows 7 I recently built a 5x5850(sapphire) rig and the screen would freeze if I pushed it too far or tried downgrading the memory to below 500 mhz. Upgrading to 11.7 drivers and using trixx in staid of afterburner fixed all my problems.