Well, tested again, 1300 worked. but 1350 fails after 3-5 seconds. hmm, odd... Tomorrow ill check what kind of mem it has, if it's the same perhaps just a bad example. ill try vmod anyway, see if it scales.

Highest 'non artifact' canyon i had was 1070 mhz, 1100 mhz finishes aswell, but at the end there are quite some dots on the screen.
and rising from 1.28 to 1.32 didnt matter anything, so i guess that's just the limit. ill try with max vcore and 100% fan tomorrow though, just to check.

Hope to put it under cold soon