Hi together,
I have recently ordered hardware to build a mining rig to start mining Litecoin.
It will include 3x MSI TF III 7950s.
So, I work in IT, and am messing around with a XFX Ghost 7950 we have here spare atm. To learn from mistakes until my hardware arrives.
I have installed and tested with several diffrent AMD Drivers. incl. 12.8 + 12.10 + the most recent ones. Also with the SDKs 2.7 - 2.9
Whichever drivers and SDKs are installed, and with several diffrent setting in the .bat-file, I just cannot reach a hashrate of over 420 kH
these are some of the settings in the .bat files Ive tried.
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -I 19 -g 1 -w 256 --gpu-engine 1050 --gpu-memclock 1250 --thread-concurrency 21712 --shaders 1792 --lookup-gap 2 --temp-target 80 --temp-overheat 90 --auto-fan -o stratum+tcp://XXX:3333 -u XXX -p XXX
setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer --scrypt -I 19 --thread-concurrency 21712 --gpu-engine 1050 --gpu-memclock 1250 --temp-target 80 --auto-fan -o stratum+tcp://XXX:3333 -u XXX -p XXX
and also with just: --auto-gpu and --auto-fan
There are basically no diffrences with any setting and any drivers installed. (I have cleaned up after driver install correctly)
I just cant get over 420 kH/s
So, my questions are..
1. Can someone help me out as to if Im failing or have missed anything important ?
2. A few shares are rejected and Im getting messages about stales shares. Why ?
Also:
3. As soon as i set to -I 20 - I will get HW errors. Anyone know why ?
Ive been trying to get it to work decently for a few days now - and Im starting to get frustrated ^^
Please help a noob
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