Ok first the specs: Dual 1gz 512 mb ram pc2700 NVIDIA GeForce4 Ti with 128MB DDR SDRAM The fan on my video card recently started acting up making crazy chirping and grinding noises and i was wondering how to know which fans would replace the one i have. I already took it out, greased it up, and replaced it but i think its just hit the *******. Ive seen a couple replacement fans advertised but am not sure which ones will work with mine. Also on a side note, how do you know which video cards will work for G4 MDD's? I thought i knew until recently so am not sure. Any help would be great.