Last night I was doing some testing with my X800GTO @ 540/540 (stock volts) with my Polarflo TT GPU block.

According to ATiTool my GPU core temp was 90 C running their little 3D test prog. GPU Environment temp at that time was reading 50-52 C. Idle for both temps is 40 C.

During the 3D test I felt the water block with my finger and it wasn't even warm. I felt the back of the GPU above the core and there was definitely some heat, but I didn't even come close to burning myself and I could hold my finger there all day. Observation: it couldn't have been running 90 C, even with this wimpy little GPU block. (Yeah, yeah, should have waited another 2 months to get a Maze4.)

My question is, am I insane? Is my assumption that the 90 C reading was BS correct/plausible? Is there anyone else out there getting crazy ATiTool readings with X800GTOs?

Thank you for any help!