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@Claymore
Any ideas to what might cause this error msg
GPU 2, OpenCL error -4 - cannot create DAG on GPU
I only recently get this error, after some random number of watchdog restarts the gpu builds the dag fine, i tried serializing dag generation and lowering clocks neither has any effect.

Which GPU model, driver version, system RAM do you use?

Edit: On an unrelated note all 7950 and 280 cards on this rig only show 64% gpu load in gpuz...Also my other rig 5 r9 280x all gpu show 64% gpu usage.

My 7850 has always shown 64% usage - I've never seen it go higher. I've no idea why the card doesn't max out, I figured this was normal. If you find a way to get your cards to 100% utilization, I'd be interested to know what you did.

What speed are you getting with your 7850? I am getting 11.6 MH/s ETH, 232 MH/s DCR with 1000/1500 clocks, -dcri 40 in Ubuntu 14.04

I'm getting 11.8MH/s Eth, 189 MH/s DCR with 1050/1450 clocks, -dcri 32 in Win10. Seems we're pretty similar.