the miner can only use 1 GPU. you need to run a new miner on each GPU.
also what Maxxx said
Topic: Just installed 2 6990, need help resetting Miner HELLLLPPPP (Read 1056 times)
On Win7, try re-installing the drivers for the 6990. I have to do this if I am overclocking and jack them up sometimes. Also, you will need to plug another monitor into the other card or switch the cable back and forth to trick WIndows.
Or there are the dummy plugs you can find with a forum search.
Or there are the dummy plugs you can find with a forum search.
Running Windows 7 64bit, was working just fine with 5870 I took it out installed two 6990's and now it is only using one of the gpu's on one card only. Heeellllpp
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