Hi, I have a Nvidia G-force 2 MX 400 video card. I want to replace the fan on the video card but I cannot find the same kind of fan as the original. I bought a fan of the same size but the screws are too big, they can’t fit in the slot of the heat sink. The old screws are too small for the new fan as well. So I’m thinking about replace the heat sink. The heat sink was somehow glued onto the chip. I don’t know how to get it off. Anyone can help me? Also is it ok to replace the heat sink? I thought the heat sink was designed to allow maximum heat transfer, if I get a new heat sink, will it affect the performance of the chip? Thanks Leon

Leon, couple of suggestions. I got the same card, except that Gainward was too cheap to put a fan on mine so it constantly overheated. I pulled a case fan out of an old computer, drilled three holes through the bottom of my case, and bolted three #10, 3" bolts to the bottom inside. I slid the fan down, through its mounting holes, over these and fastened it about two inches from the bottom using stop-nuts for it to sit on and then used nuts from the top to fasten it. So it is installed about three inches from the bottom of the case to allow air circulation. It is blowing directly on the card heatsink, and is about four (4) inches from the top of the heatsink. I now have the card overclocked up to 250 Mz from 190 Mz. No overheating anymore, no problems. So you don't need a fan to sit directly on top of the heatsink. Next suggestion: If you really want the fan mounted directly to the heatsink, there is an epoxy glue called PC7 commonly sold in hardware stores that sets like steel. Use several gobs on the mountings and run it up inside the boltholes. That will hold it forever. By the time that fan wears out, the card will be so outdated you will have to replace it anyway.

What? Your Gainward card didn't come with a fan? My Ti4200 did...

Doh! My bad! Didn't realize you were talking about an MX. Cheap card = cheap components

To Utllama: Yes, it was a cheap card - $30. If you will read my post you will see that now it does not overheat, and is heavily overclocked. I play MechWarrior4 with intense, heavy rendering at 1280x1024 @ 32 bit color and it never misses a beat. Anyone who has played that game knows how heavy-duty it is in graphics.