3 x Sapphire 7950 Problems (w/ 5 LTC BOUNTY IF SOLVED)
Hey everyone. I'm having trouble with my mining rig. I've been running cgminer and cgwatcher with 2 Sapphire Radeon Vapor-X HD 7950 OC using the following:
--scrypt -o stratum.give-me-coins.com:3334 -u USER.1 -p PASSWORD --thread-concurrency 16384,16384 --gpu-engine 1100,1100 --gpu-memclock 1500,1500 --temp-target 75 -I 20,20 -w 256
I have a 1000 watt psu so I know that the cards are being powered just fine. When I run only two cards, they run just fine and I average 1.3-1.5 MH/s. But, when I plugged in the third gpu and run cgwatcher/miner the gpus are all marked as OFF but I can see the changes in difficulty and the connections to the new pool blocks.
Any advice? I've been struggling for hours trying to figure it out. The first person to help me solve the issue correctly and get me up and running again will get 5 LTC. Thanks