Personally tried the Zalman heatsink w/ heatpipe on my ATI 9700 Pro. Meticulously followed their instructions and gently firmed down the many connections. Following the installation, the ATI 9700 Pro card never worked again. I could find nothing to suggest what might have gone wrong. Nothing was burned, shorted, pinched or bent. I could find no troubleshooting either on Zalman's site or really anywhere else. THIS IS NOT TO SAY THAT ZALMAN DID ANYTHING WRONG OR LET ME DOWN IN ANY WAY. This is just to say that everyone should be very, very careful. Things can go wrong. Good Luck.