Hi ppl, I just replaced stock cooler of my HD4890 with AC Twin Turbo ( however only RAM heatsinks can be attached to it , other 2 heatsinks cant be attached because new PCB have those other chips in middle of the board. so far, AC Twin Turbo is not compatible with HD4890 ). everything else is fine. but I m only worried about these 2 temp ( Slave 1 and Slave 2, whts the Qmark before it? ) highlighted in below image. Those temp. were 65c and 67C respectively. now its 83C and 84 on 2d clocks. Its because no heatsink attached to it now. ( previously it has stock cooler attached on it ). is this temp. that important to maintain? then I have to buy smaller heatsinks and thermal tape for it. let me know ppl, so I can workout something for it .