Hey guys,
Just wanted to share my experience and ask a few questions in the progress.
I have 2 GPUs : 6850 and R9 280x which out of convenience I called 7970.
I'm relatively new to mining and I've been using GuiMiner for about a week. A few days ago I decided to switch to CGMiner.
Given the Gpu-Threads variable cannot have more than one argument, I have to start 2 instances of cgminer. no problem.
I've been using command line like this:
cgminer.exe --scrypt -u worker7970 -p pass -o hashcows pool :8888 -u worker7970 -p pass -o coinotron.com:3334 --thread-concurrency 8192 -w 256 -v 1 -I 13 -g 2 --temp-target 75 --lookup-gap 2 --auto-fan -d 1
cgminer.exe --scrypt -u worker6850 -p pass -o hashcows pool:8888 -u worker6850 -p pass-o coinotron.com:3334 --thread-concurrency 6144 -w 256 -v 1 -I 16 -g 1 --temp-target 75 --lookup-gap 2 --auto-fan -d 0
Everything works fine however I have a few questions which I hope will make clearer for me:
1. If I want to use the CONF file with 2 GPU's, would I need to make 2 folders with cgminer, each with its own conf file ?
2. If 1 is true, then in each conf file do you need to specify parameters for 2 GPU's ? How do you make it such that one gpu is disabled? again the use of the "-d" parameter ?
3. When you start cgminer twice with commands like the ones above, 1 starts for: GPU0 enabled, GPU1 disabled, and the 2nd is vice versa. I read somewhere that in each instance you need to turn off Auto-Fan for the disabled GPU. True or False ? ANd if True, is there any way to automate that ? ( I assume it's easier in the conf file)
4. is it possible that when hashcows changes coins the pool is seen as "dead" and it switches to my backup ? I set failover-only to make sure it only switches when it's been dead for 1 minute.
5. in GUI miner I could set TC to 11200 for my 7970. In cgminer it fails..says something about memory. Anything to do with RAM ? And why does it work in GUI and not in CG ?
Thanks guys !
