So I kinda built my little SFF into a corner. Current innards include:
-Shuttle PC50 300W power supply
-4GB of Crucial Ballistix DDR2 (2x2GB) @ 2.0V
-XFX ATI HD5750, single slot version
-LG BH10LS30 BD-RW (wow, PowerDVD really is terrible these days)
-ASUS Xonar D1
-WD Caviar Green 2TB
-3.5" floppy drive that will be pried from my cold, dead hands
Here's the problem - with all this stuff in there, I'm pretty confident that the power supply is juuuust up to the task, but the cooling is not. The ICE 2 heatpipe seems to be a bottleneck, but airflow through the case isn't that great either. The XFX card overheats to the point of crashing - it's not the GPU, the temp controlled fan keeps that within reasonable limits, but since there's not much air moving through there it's something else on the card, probably the RAM. The south bridge gets quite hot as well. The stock Shuttle fan is a bit noisy, but it will push more air than most modern quiet fans, so not even the fan is the problem.
Have people modified these things to cool better? I remember some really old threads on Sudhian, but I can't dig them up. I didn't really build this computer to be quiet, just to save space, and I have way more space now than when I built it ... just don't want to drop money on a new computer at the moment. That, but I also don't want to give up any of the current components. If there's no reasonable ways to cool this thing off, I'll probably spend the minimum possible on another motherboard & case and transplant everything. However I'm willing to do a lot to 'save' this one.