Hey guys,
i have a Rig with the following hardware:
ASRock 970 Extreme4
AMD Sempron 145
500 GB Toshiba DT01ACA Series SATA
Lepa 1600W PSU
4x Sapphire Toxic Radeon R9 280X
After 1-2 hours my cgminer crashes and i can´t do anythig against it. My current config is:
timeout 20
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://stratum.dogehouse.org:3334 -u x.x -p x -I 13 -w 256 -g 2 --shaders 2048 --thread-concurrency 8192 --gpu-engine 1000 --gpu-memclock 1500 --gpu-fan 80
As you can see, even with gpu-engine at 1000 cgminer is crashing. I really don´t get it.
Things i´ve tried:
- AMD Drivers Revision 13.12 and Beta Drivers 14.1
- setting gpu-engine between 1000 and 1080
- several other configs i found on bitcointalk
The other thing is, i can reach with these cards only ~680 khash. Normally a Toxic should do 730-750 easily.
Can anybody help me?