A 64-bit system uses larger amounts of memory and power, which create a new level of thermal and maintenance requirements.
This means they get really hot — more than industry-standard blade servers, which are notorious for their cooling challenges.
The problem with blade servers, according to experts, is that vendors continue to develop smaller and smaller servers with more computing power. When you pack them into a rack, the servers generate an enormous amount of heat but there’s no place for the heat to go. Think of a lot of bodies packed into a small room — the tighter the squeeze, the hotter it gets.