Greetings, everyone: I have a computer I use to game. It's really far from being a super computer, but it satisfies my needs. I'm not an extreme gamer or anything like it. This is a picture of the "insides" of my computer. (High res, 1.70 Mb .jpg file). >> -- Click to maximize. I have a 80 mm fan sucking air in on the front of my case, another 80 mm fan on the side sucking air in (you can see it), a 90 mm fan blowing air out on the back and the PSU fans. Now, sometimes when I run heavy CPU-usage tasks, the heatsink's fan starts to run really loud, which worries me, I don't want my processor to be ruined. It's a Pentium D @ 2.8 Ghz. 1- See the heatsink air duct? Am I better off unscrewing the duct and placing an 80 mm fan on there, sucking air in? 2- See the video card? that's a PCI-E Nvidia GeForce 8600GT -- It has it's own fan. I have a PCI-E sound card which is normally placed just underneath my video card... But recently, the video card's fan seems to have "loosened" out of position, causing it to get stuck on the sound card, thus preventing it from spinning. Everything was ok for like 6 months, and this started to happen just recently, so I had to remove the sound card as a temporary measure (You can see the unused opening on the back of the case). Any ideas on what can I do? Thanks in advance for your help. Happy Holidays; ~Coxis.