I cannot overclock using this OS. I am using the most up to date version with claymore miner for only eth and my cards are visiontek to 480 8gb. When I put any values in the OC settings the console just sits are the OC settings part and never turns on the miner. I've tried 915 core and 2200 mem with power level 5 and get nothing. I've also tried it with power level 7 and still nothing. So as of now it mines at default of 915 core and 2080 mem and gets about 21 mh/s.
If you want i can look into your rig but you would need to email me at
admin@simplemining.net with ether forwarded 22 port of your miner or team viewer details to any windows in the same network + ip address of your miner in network.
I can look at this why is it not mining but most propably its something wrong with risers ir hardware ? Did you tried less gpus or switching risers ?
In mining world, rig could make unpredictible problems. Switching risers can even fix problems
Once i had this stupid rig which was crashing all the time, i switched gpus, risers, nothing helped so i disassempled it and connected everything once again.. Gueess what ... It started to working ok
Anyway try if you rig will start mining with 1,2,3,4,5 gpus and see if one of them causing problem that it stops on OC.