Hi!
There seems to be a problem with this card and/or the guiminer-scrypt config.
It's a Powercolor HD 7970 (non-ghz, non-ref), and after a restart of the system, on the first try, will mine in guiminer-scrypt at around 630 kh/sec consistently for about 2 minutes. After this period of time, the AMD display driver will crash, and then recover. Stopping and starting the mining in guiminer-scrypt will only result in a top speed of anywhere between 30 and 200 kh/sec, with the only way to recover the 630 speed being to restart the computer again.
Any ideas for this odd behavior?
Thanks!
why dont you use the cgminer instead.
Try cgminer and see if it still crashes.