Greetings folks I picked up this XFX HD 7870: XFX Double D FX-787A-CDFC Radeon HD 7870 GHz Editi... Just finished installing it (I'm using the latest Catalyst 13.4 WHQL drivers), everything seemed to go smoothly... until I go to test it. At idle, I checked the temps using HWMonitor and things looked beautiful - 28°C. I thought "Great! Gonna have a good time overclocking this puppy." The temp reading was the same in the Catalyst Control Center. However, using Furmark for the first with the GPU fresh out of the box (no OC'ing at all), the temps jumped up to 91°C in a matter of a two minutes or so. Naturally, I killed Furmark before it got any higher, before it killed the card. I've checked both fans and they're going strong. I turned the fan up manually to 100%, ran Furmark again and before I knew it, I once again went from ~28°C idle to 85°C within a moments of starting the test (until I had to manually quit Furmark again). I'm using a Cooler Master Elite 430 case w/ 4 120mm case fans and an Antec Kuhler 620 on the CPU. My fan configuration is: Top = x1 fan, exhaust (will be adding a second one to the top when it gets in later this week); Bottom = 1 x Fan, intake; Side Panel = 1 x fan, intake; Front 1 x Fan, intake. The Antec 620 has only one fan, running exhaust on the back of the rad. My XFX HD 6850 with only one fan on it (the card I just removed) would typically top out at no more than 68°C, and idle in the mid-30's. Anyone have any ideas where I should start checking? I'm pretty sure that if I remove the cooler, it voids the warranty. Any advice would be greatly appreciated. Thanks in advance!