X850Pro AGP VIVO: How to get 16 pipes and still have variable speed fan edit - go to page 3 for the instructions on how to unlock pipes and retain variable speed fan Hello all, Just picked up an X850Pro AGP, and am happy to report that unlocking all 16 pipes was as easy as flashing the BIOS with one from an X850XT-PE, and then de-clocking it to X850XT speeds (the stock cooler can't handle 540/580). Unlocking the pipes bumped performance by about 20%, and increasing the speeds from 500/500 to 520/540 gave another 5% or so. Very nice. However, after flashing the card and installing ATITool, I started to notice odd behaviour from the fan. It is now either on or off - it is not working as a variable speed fan no matter how I configure ATITool. I don't know if it was before the flash. Also, the default on/off temperature is 90degC, which seems very, very high. So using ATITool I've got it set to come on at 50degC instead, and have an Arctic Cool Silencer 5 on the way. Now for the questions: If you have a X850Pro AGP, is your fan variable speed or is it just on/off? If just on/off, does it cycle at 90degC? Will replacing the stock cooler with the Arctic Cool unit allow variable speed fan control? Thanks in advance for your help.