Like i recently learned, the HAF 932 case doesn't come with fan filters. Many cases don't come with these. You don't let your computer get like this, no enthusiast would let this happen. Unless you're lazy which i am but this isn't my system. http://forums.bit-tech.net/album.php?albumid=1517&pictureid=21427 That dust is from not having a filter but at the same time, it is a very old computer so that's bound to be there filter or no filter. Now like this fan bay. http://forums.bit-tech.net/album.php?albumid=1517&pictureid=21428 It's on the ground and it's going to be sucking air in, heat rises so the exhaust is at the top or back. So it's agreed that this bottom fan bay will suck a lot of dust in. Now it doesn't have a filter like it should so, just buy some dust filter material which looks like this. http://forums.bit-tech.net/album.php?albumid=1517&pictureid=21430 Cut a 120mm square/220mm square(whatever size you need)and place the foam inbetween the fan and the cases vent hole making sure it's a perfect fit. That's my way of fixing a design problem. http://forums.bit-tech.net/album.php?albumid=1517&pictureid=21431 inbetween the fan and case vent holes. Plus you can wash the foam.
Where do you get fan filters from? I'm looking for some 120mm ones but not sure where to look that aren't ridiculously expensive! Would like a large sheet so i can cut to size.. filters are a must as i'm tired of taking apart my graphics card to clean out the dust!