It seems to be giving me trouble lately, so does anyone know how I can keep track of the video card fan speed? (I have a GeForce4 Ti 4200 - Abit Siluro)
Only if the fan has a three wire connector. If so, you can connect it to a motherboard fan header and read the RPMs with any monitoring program, i.e. MBM. I don't know if any stock fans have this type of connector.