I looked through the forum and seen members talking about afterburner so got that and I am getting 22Mhz at 70c if i could get it cooler that would be great but I think 70c is about what I was getting gaming so I dont think its that bad
I also have problems on 280x with high temps.
Can someone tell me how can this afterburner help to run my GPUs cooler? What can it do that I cannot with miner config or AMD Catalyst (--gpu-fan, --gpu-engine...)?
I'll move this to the PM side so as not to flood this thread. For the record, just remounted a fan and added a few heat-sinks which took care of a few degrees. Here's my 290 hashing Ziftr at 4.83 Mh/s, 1170/1350. Check the temps.

Boo-Ya! Getting 26Mh/s with M-G as well.