I was able to change the volt of my gpu with atitweak under linux but as soon as I start cgminer the voltage is on 1200 again. How is that even possible, in cgmienr I can't change the voltage.
@CatsTheAYAYAian
I completely rebuilt my rig now and there are no cables showing in front and also I removed the spare hdd cages. Changed the temp about 2° C but now I only get 670khash instead of 730°. D:
Currently the rig is lying on its face and there are even 4 fans which are sucking out the heat which should rise from the GPU. It seems to work since there is hot air coming out from those 4 fans.
I am using these fans:
http://www.alternate.de/Aerocool/Shark_Fan_12cm_Blue_Edition,_Case_Modding_Luefter/html/product/255006/@Randallphoto
My gpu fans are already running on about 3700 which is 100%.