Intel's BTX form factor, with a B for better?
 

PCs based on the BTX form factor are just about to be available, offering better thermal management and smaller PCs. We take a look at a micro-BTX case, motherboard and heatsink to see whether BTX delivers on its promises.

http://www.hardwareanalysis.com/content/article/1773/

It's called taken care of the "loudest noise" which in this case CPU temp and allowing HDD and other vital components to get hot. No one complains, BTX would get a way easily. Until you find out excessive system temp, CTX will come out .....

Well, may not be CTX name is taken for over 10 years.