LoL @ gpu-powertune @ 40!

I run my watercooled DC2T 3GD5 with similar settings but with 1200/1500 clocks. Get 2.75Mh/s. No powertune set in config file. I'll just try that for lulz. 'cause without it SGminer starts going nuts after a few hours above 1200 gpu clock. I noticed running 1800 mem clock brought nothing.
Cent, how long do those settings work before SGminer crashes?
crashes...crashes...Only kids going collapse (like you)
bios is modded, powertune unlocked, voltage unlocked....all fine....no crashes (1250/1800/1.256v)