Quote Originally Posted by roger_h99.nor View Post
1. When disassembly the stock heatsink, I discovered that only half of the ramchips made proper contact with the thermal pads on the heatsink. (It's possible to see this because of thermal pads have a slight pattern, when proper contact is made this pattern disappear.

2. After flashing a PRO to XT, I noticed MVDDC was raised to 2.20V. I found this to be a lot higher than than nessesary. Card can bench at 999 with only 1.875 (may be even lower than this!)

Thus, try to lower MVDDC, You will have a cooler card.
I flashed my Sapphire Pro to Sapphire XT, and now back to HIS Pro. ATI Tool still shows 2.20 on MVDDC. Maybe that explains why the memory can't clock worth a damn for me, might be heating up too much.