Quote from: Starscream on February 11, 2014, 08:41:30 AM

Quote from: Acidyo on February 11, 2014, 08:23:03 AM

Quote from: Starscream on February 11, 2014, 08:12:03 AM

Quote from: Acidyo on February 11, 2014, 07:53:17 AM

Quote from: Starscream on February 11, 2014, 07:43:12 AM

What miner are you using and what's your config like?

CGMiner 3.7.2 on windows 7.

I've been mostly trying with a default intensity 13,gputhreads 2 and some other default stuff.

(New to cgminer so don't know the names by heart)

R9 290 works with -g 1, which also means -i 18+ and TC higher than 20k

Try these:

-g 1 -i 19 --thread-concurrency 20481

I tried something similar at one point with my first gpu and even with a lower threadconcurrency but the degrees would almost hit 100.
The second one doesn't go higher than 65 degrees, 50% fan and 370kh/s. Have no idea why.

You can and should undervolt them and that should help improve your temperature.
Also, what's your clock speeds at? (gpu/mem)
Can you paste your full cfg file?

Will PM you when I get home and have access to it. Thanks for helping!