Replacement Graphics Card Fan?
I have a Nvidia 9400GT and my graphics cards fan has recently failed, I have to manually tap it to start.
Where can I get a replacement fan for it? I don't know the exact size but here is the link for my card here:
http://www.amazon.co.uk/Inno3D-GeForce-G
I cannot find a replacement cooler for yoru card, but to be honest replacement coolers arent usually cheap and they are usualy only made for high end cards. Its a very low powered cheap card, you may as well eitehr screw any old fan onto it and wire
As Googles 
An easy way to replace noisy fans in your computer or install a larger fan on a smaller heatsink, all with twisty ties.
Article by at 2011-09-08 02:45:16
A top-of-the-line graphics card is easy to spot. It has lots of memory and a fast processor. Often, it's also more visually appealing than anything else that's intended to go inside a computer's case. Lots of high-performance video cards are illustrated or have decorative fans or heat sinks.
I mean Edge did it and even Christian. Those three where mid cards not so long ago. Check the video at 2:53. An awesome heel moment indeed. Speaking of heel moments, remember when Shannon Moore was a reject. Well he came to bring sexy back.
Either way, the new phones out now, and while I'm in no hurry to snag one (my 3GS gave out over the summer and I ponied up $80 to apple for a replacement) I'll probably eventually upgrade to the 4s. That is, of course, unless I hear the 5 will be out
Using the instructions that came with your PC, unplug everything and then – in a well-lit room so you can see what's going on – open the system unit and find the graphics card. It will probably be the largest vertically placed circuit board in there