Quote from: adrd on May 19, 2011, 06:27:28 PM

My 6990 is overheating while mining, even though I haven't overclocked it yet, any ideas why is it ?

What are your temperatures ?

I am getting very similar results with poclbm here (Ubuntu 11.04 x86_64, Catalyst 11.5, APP SDK 2.4, with stock settings no O/C):

Code:

$ nice -n 19 python poclbm.py -u u --pass=p -o example.com -p 8332 -r 2 -d 1 -f 1
...
340516 khash/s

Code:

$ aticonfig --odgt --adapter=all

Adapter 0 - AMD Radeon HD 6990
Sensor 0: Temperature - 100.50 C

Adapter 1 - AMD Radeon HD 6990
Sensor 0: Temperature - 89.50 C

Code:

$ aticonfig --odgc --adapter=all

Adapter 0 - AMD Radeon HD 6990
   Core (MHz) Memory (MHz)
   Current Clocks : 830 1250
   Current Peak : 830 1250
  Configurable Peak Range : [500-1200] [1250-1500]
   GPU load : 97%

Adapter 1 - AMD Radeon HD 6990
   Core (MHz) Memory (MHz)
   Current Clocks : 830 1250
   Current Peak : 830 1250
  Configurable Peak Range : [500-1200] [1250-1500]
   GPU load : 99%

I keep the first core on `-f 60` (335211 khash/s) to get more responsiveness from the desktop, and it gets hotter nonetheless, I guess because it's the one farther from the rear of the case.