hello everyone,
I bought new XFX R9 280X graphic card and i have been trying to get it to mine above 700kh/s for a few days. After some tempering with the cgminer settings I discovered that no matter what settings I use if cards temp goes over 65C it becomes unstable and hashrate start to fluctuate between 400-700...as the temps go higher hashrate drops significantly.
For example:
When I use gpu memclock 1500, gpu engine 1055 I get 734kh/s stable (no hashrate dropping) at temp 64C (gpu fans are at 100%)
When I set target temp to 67 I get average hashrate of 650kh/s (jumping from 550-700kh/s)
When I set target temp to 75 I get average hashrate of 580kh/s (jumping from 400-600kh/s) -temp never reaches 75C and cgminer crashes after some time
I have tried setting powertune to 20, installed beta drivers, disabled catalyst,added extra more RAM but with no effect.
What are my options? Will I be able to RMA my card?
Should I run some benchmarks to see if it will show some errors so I can have the valid reason to return it?
There is no way I could maintain such a low temperature of the card especially when I add some more cards to the rig.
Topic: XFX R9 280X temperature problem - page 2. (Read 4533 times)
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