I decided to add a small fan (Old K6 CPU fan) to my video card (Geforce 5200), it only had a heatsink and I was considering some overclocking. Anyways everything looked fine until hours later when I was installing a benchmarking program that windows crashed. After that it was a mess the video card looked horrible and glitchy outside the post and there was messages about some corrupt file, It wasnt until after I reinstalled windows that I remembered that I added the fan and unplugged it from the PSU and everything ran fine. Anyways it is still attached, what did I do wrong and is there a way that I can still use this fan?