Hi Guys, got another 2 8Gb RX580's today and joined then to my successfully running rig of 3 RX 580's.
Original 3 card rig was 2x 8Gb Rx580 and 1x 4Gb RX580, all working very well for well over 10 day now.
Added the 2 extar 8Gb Cards to rig and the 4Gb card cause the ' OpenCL Error -4 (0) - Cannot create DAG on GPU' error?? After 30 secs or so it says Card Failed and then reboots The mining software.
Put the rig back to original setup runs fine, take out the 4Gb RX580 and run with 4x 8Gb and it runs fine.
Tried changing the 4Gb card position on the MoBo, no difference. Searched on here for this error and most answer come back saying not enough memory to create DAG.....But it works fine on it's own or fine with 2 other 8Gb RX580's.