Mining ftc with 2 - R9 290x Win 7 Home 64 bit. cgminer 3.0.1
Overclocked yesterday, +15% for power and clock speed, ran at 95C for a number of hours. Obtained kH/s of 780+ Both cards were over 700 kH/s
Used these parameters loading cgminer
cgminer --scrypt -o ftc.give-me-coins.com:3336 -O user.miner:pass --thread-concurrency 8192 -w 256 -I 18
I shut the system down completely for about 4 hours last night. Ran cgminer again overnight Used defaults -- no overclocking. 8 hours. It ran very slowly in comparison to the previous performance. 12 - 16 kH/s according to cgminer.
Today, shut down to try to troubleshoot. Unable to run cgminer using --thread-concurrency 8192 -w 256 -I 18 Error message about thread 0, killing thread 0. Card driver stops and then restarts.
Can anybody help?