Peltiers (TECs) have since long been an exciting form of extreme cooling, even though its golden days were when CPUs were pumping out 10-20 W instead of 80-100. However, Peltiers are not the easiest form of cooling, and making them work perfectly in your system can be a hassle.
MadShrimps has written a rather long introducing article covering mounting and power supply, there are more problems of course, though these are the two biggest.
A lot of text, a few pictures and a clear message. Though we must point out that despite the author claiming Peltiers being the most efficient extreme cooling, compressor cooling is a lot more effective, if you have the time/money necessary.
Read the article here.
