i wrote this question already in the LTC Forum (https://litecointalk.org/index.php?topic=9845.0) but i will try it here too
my Rig-Hardware
HDD: 40 GB Seagate 7200 rpm 3,5" Zoll SATA-II
RAM: G.Skill DIMM 2 GB DDR3-1333
CPU : AMD SDX145HBGMBOX CPU AMD Sempron 145 Box Sockel AM3
MB: ASRock 970 Extreme4
NT: Tagan TG900-U33 900W 2-Force II Series
GPU: Gigabyte 7950
OS: Windows 7 x64 SP1
cgminer 3.7.2 bat:
Code:
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
.\cgminer-3.7.2-windows\cgminer.exe --scrypt -o stratum+tcp://coinotron.com:3334 -u xxx -p xxx --auto-fan --thread-concurrency 24000 --lookup-gap 2 --gpu-engine 1155 --gpu-memclock 1250 --gpu-powertune 20 -w 256 -I 20 -g 1
setx GPU_USE_SYNC_OBJECTS 1
.\cgminer-3.7.2-windows\cgminer.exe --scrypt -o stratum+tcp://coinotron.com:3334 -u xxx -p xxx --auto-fan --thread-concurrency 24000 --lookup-gap 2 --gpu-engine 1155 --gpu-memclock 1250 --gpu-powertune 20 -w 256 -I 20 -g 1
on my main-computer i get about 650 kh/s with this settings.
well i started with Cat 12.8 and SDK 2.7
and later with Cat 13.9 without SDK
i always got this error:
Error -5: Enqueueing kernel onto command queue. (clEnqueueNDRangeKernel)
GPU 0 failure, disabling!
or cgminer crashed when i opened it ...
i surfed around but i didn't find any good solution
i reduced the thread concurency to 8192 and played around with the intesivity (13-20) but i only get 100% HW errors ...
tried reaper, guiminer and cgminer
i am really out of ideas at the moment ...
packed everything back into my main-computer now .. works great again
thank you in advance