I've been using Claymore on an unstable system - trying to narrow down the errors to stabilize the system but it is still crashing.  It has never mined for more than a day or so without crashing.

Now the console output gives zero indication of error, it just crashes or reboots after several hours or nearly immediately.

Z170A SLI PLUS
5 x gigabyte 1070
1200W EVGA platinum
win 8.1 64