Hello. I recently installed a new Sapphire 7950 and tried to mine with it. I was running Catalyst 11.1 with a 6950 without issues at 350mh at stock clocks with the shader unlock. 11.1 did not support the 7950, so I installed catalyst 13.4.
This threw up an error in poclbm and wouldn't even start mining. I cleaned drivers via driver sweeper, and installed 13.1.
The card starts to mine under 13.1, and as soon as a share is discovered, it gave me the error "Verification failure, check hardware", after a little research I've determined that the shares it's producing are invalid and the miner closes once discovering it's producing invalid shares.
I worked on this for a couple hours, then I resorted to formatting my SSD boot drive with a fresh win7-64 installation, thinking this would surely eliminate any issues related to mismatched drivers. I asked around for the best catalyst for 7xxx cards, which I've been told is 12.8. I installed 12.8, and have not changed yet, but the miner is still giving me the "Verification failure, check hardware" error. The card itself seems perfectly fine, I've stressed it using game benchmarks and some other openCL stuff and it works totally fine.
I'm baffled by this! Please help!
This is related to Catalyst 13.4.
You need to downgrade to prior versions, till the problem disappears.
