Summary: i installed this fan on an ati radeon 3650. the original fan had quit altogether and temps were over 100 C. with the new fan installed temps never go above 55. easy install. i used arctic clean and arctic 5 grease. i had no problems with the additional heat sinks, they stuck on fine once i cleaned the chips.
Summary: I bought this fan over 2 years ago and it is still working great. I installed it on an Nvidia 8600 because the fan died on it. also had to replace the capacitors on the 8600. The fan and the card are still in use today.
Summary: Zalman website claims this VF-900 fits on the Nvidia 6800 series but does not fit on my MSI 6800 GT! It is so big that it actually drops down to the bottom of where the card slides into the AGP slot. Since there is a pci slot (empty) next to it, this deep heatsink hits and sits on that empty pci slot, thus not allowing the video card to seat in its own AGP slot!! This is on a Dell Dimension 4600.
Summary: You will not find a better fan ever! Super quiet and efficient. Fits most video cards and far exceeds the factory fans capabilities. Be careful not to touch the little heat syncs adhesive pad before installing or they will not stick well.
Summary: The cooler fits perfectly on my 9600GSO graphics card. I used the extra controller, that hangs on the back of the case, to control the speed of the fan. At the highest speed it makes a slight noise but nothing compared to the stock fan on the card, it drove me crazy. The extra fin coolers that stick on the memory worked on the first application. I read people having difficulties trying to keep them on but I had none.
Summary: I purchased this heatsink/fan after noticing that my video card was running at 90C while under load. This was causing many issues, chief among them being random system lockups. After installing the Zalman VF900 my temperature under load went down to 45C. The directions were very easy to understand, although I would warn someone who doesn't know much about computer internals to have someone else perform the replacement for them, if possible.
Summary: I'm running my Radeon HD 4650 as a GPU miner for Bitcoin, I know its not a high end card for it, but its what I have. I would love to get the HD 6990 or the HD 5970 but for now I'll dream. For those that know, GPU mining can put the card under full load and run very very HOT! With the original stock cooler, when my card was mining it would hover ~95c and sometimes spike up to 108c.
Summary: When my VGAs fan stoped working this was the my 1st pick on how to replace the fan, only reason I didn't go with it right a way was, cause I knew my motherbord had no extra 4 prong, and the ones I could use wouldnt give the 12 volts needed to full power fan, so I found out that I could use my power suply units 6" SATA power cables to power the fan, item I go were: Zalman ZM-MC1 Multi-connector PS to Add Fan, Manhattan, 6" SATA 15-Pin Male to Dual 4-Pin Molex Female Y...
Summary: My main reason for getting this was the fan on my video card was quite noisy. It took less than a 30 minutes to install. The external speed controller looks kind of ugly, but functions as describe. I am using a Nvidia GF9500 1meg card. When you google the noise problem, it becomes quite apperant that the stock fan is the problem and Nvidia says its normal. It cost half the price of the card to solve the noise, but it is easier on the ears.