Quote from: MrJay on March 25, 2015, 09:44:47 AM

Any idea what could be causing this:

09:29:03:320   f9c   buf: {"id":1,"jsonrpc":"2.0","error":null,"result":{"id":"124601006298325","job":{"blob":"0100beffc9a80519953029eb35686e6603c415a5ce146464a18fc5d4a2ba148c54fce948f82f4e0 0000000e347b57b530720a0174765f22dd11afec72266a4aca2468563cb9692cc5c52ee03","job_id":"148032830562442","target":"7b5e0400"},"status":"OK"}}

09:29:03:320   f9c   parse packet: 303
09:29:03:325   f9c   new buf size: 0
09:29:03:325   f9c   DevFee: Pool Diff 15000
09:29:04:244   f64   GPU 2, GpuMiner k1a failed -4
09:29:04:246   6ec   GPU 3, GpuMiner k1a failed -4
09:29:04:249   f64   GPU memory allocation failed. Try to set at least 16 GB of Virtual Memory: Computer Properties / Advanced System Settings / Performance / Advanced / Virtual Memory

5x 290 rig, I have virtual memory set to 16GB, no overclock, I've actually set memory down to 1250 from stock 1300.

Thanks.

Edit: using 13.12 drivers with 9.2 13.12.

Try to increase size of physical RAM, for 4 290 cards at least 4GB is necessary, 5 cards may require even more. You can also try to increase size of virtual memory.