ok just got an email from from willbo:
"Hi, its willbo from the OCUK forums, just been reading your posts about the VRMs being too hot, and I’ve got the same problems with mine as after an 1-2hrs of gaming on FC2 the game crashes back to the desk top and when I check GPU-Z I’m getting temps of;
VDDC Slave #1 Temperature = 87.0
VDDC Slave #2 Temperature = 92.0
VDDC Slave #3 Temperature = 89.0
I’m guessing these are too high? I’ve got the same heat sink layout as you on your card (excluding the heat sinks on the raised chips next to the VRMs and the one on the bottom right corner of your card) with the long heat sinks stretching over the 5 VRM chips only but I’m only using the stock thermal tape that is on the heat sinks. How did you get the temps down? I’ve ordered some Akasa Thermal Adhesive tape, and a Antec SpotCool System Cooler to put more air on the GFX Card"
and i replied:
"....well after about 5 minutes or running the ATITool artifact program my temps through GPU-Z are:
VDDC Slave #1 Temperature = 86.0
VDDC Slave #2 Temperature = 91.0
VDDC Slave #3 Temperature = 92.0
Thats with my 2 fans running at there slow speed of 960rpm, if i increase the fans at full wack to 1800rmp then after 5 minutes at that speed the temps drop to:
VDDC Slave #1 Temperature = 78.0
VDDC Slave #2 Temperature = 83.0
VDDC Slave #3 Temperature = 83.0
I know on the stock cooler for the PowerColor with the fan set at just 25% the rpm speed of the fan was 1300rpm, and then at 35% (which i used for gaming) the fan rpm was well over 2200rpm!!!. So i believe it is the fan that actually cools the VRM's down on the stock cooler and indeed on the T-RAD2.
We dont even have full comformation yet of where actually the VRMs on this card are!? So this is still a problem for me too really as i would have liked the VRM temps to be a lot lower. Im just woundering if other posters on the T-RAd2 thread have looked at their VRM temps?, it might just be a problem with the PowerColor 1GB cards??? How are you controlling your fan speeds?? do you have them hocked up to the fan socket on the actual card itself?, as i have my 2 fans connected to my mobos AUX fan connections, and cant find a good was to control the speed as i wish, it might be an idea posts about these slave temps in the thread to bring it to peoples attention, and see if we can come up with a solution"
So my slave temps still are not great!, maybe we should get people to post their 3 slave temps???