Hi all, Some may have seen me mention in a few threads that I have been a bit concerned about my 9800GT's temps, which were hitting around 80-82 degrees in most games. I was put onto a pretty cool (pun intended) looking solution on PCCG, the Thermalright T-RAD², by VenGanZa, however it costs $79 which is nearly the value of my card alone, and since I am not OCing this card my temps aren't that high to warrant such a solution, especially as it doesn't seem to be compatible with the newer/higher performance cards on the market, so it will have a limited use. I really just needed to get the card a few degrees cooler while under full load. So I set out thinking up ideas on how to get the card a few degrees cooler under load as easily and cheaply as possible. My first though was that the GPUs small (40mm I think it is) fan breathes air from underneath and then pushes it towards the HDD cage where I assume the warm air would rise and by pushed out by the rear 120mm case fan. I then thought that if there's an extra 120mm fan underneath the GPU, blowing up towards the CPU HSF and case fan, that would not only assist in blowing cool air towards the card's fan, but also assist in moving the warm air away from the card and towards the exhaust fans. So here's what I did, using a spare generic 120mm green LED case fan I had laying around. As the pictures show I simply put a few screws into each mount hole to act as spacers, and I then put a small ball of blutac on each screw to reduce vibration noise and movement. This was always supposed to be a temporary, quick solution, hence why I didn't drill out proper mounting holes or air intake holes. And here's the results I compiled after allowing the system to idle with the current setup for 10 minutes, and then benching it with 3D Mark Vantage on Extreme mode: As the results show there was a slight decrease in temps, around 2 degrees with the case closed up like it normally is. However since the fan is generic it has one speed only, and that is flat out and noisy! So If I ever decided to use this concept on a daily basis I would definitely be looking around for a quieter fan to use. That also brings into mind that if I got a quieter (and thus slower) fan how effective it would be at cooling at the slower RPM. I think the biggest difference in temps is with the case panel open and closed.. 9 degrees difference with no fan and 11 degrees difference with the extra fan! However I don't think I could ever handle having the case panel open to drop GPU temps as it makes the system much nosier and there's the dust issues as well. I also noticed that CPU temps actually rose by about 1-2 degrees when the case panel was open, which makes sense as the thermal flow of the air was being messed up with the case open. I should also note that I have custom fan profiles set-up to kick in different speeds at different temperature levels, these profiles were not changed in anyway during testing and they should not have affected the results. I also decided to clean my CPU HSF, rear case fan (Antec Tri-Cool), videocard and front air filter, which were all covered in a pretty thick layer of dust and fluffy crap! E.g. Before: After (well I actually went over it again after this pic was taken): If anyone else has some ideas for me on how to reduce GPU temps by a few degrees (I am looking to get it down to around 75 on max load, instead of 80, and idle on 50, instead of 55) post it here. If you have done some cheap and easy cooling mod for your air-cooled GPU post it in here, as I am sure with summer approaching many people are keen on reducing temps at minimal cost and impact.