There is a report that a Japanese electronics magazine, Nikkei Electronics, hired a "thermal expert" to see what Microsoft was doing to fix X-Box 360's.

The expert apparently made some interesting findings:

• the motherboard temperature was 22'C above ambient temperature
• the fan on the processor is half the size on a PC processor fan
• the GPU has a tiny heatsink so it won't interfere with the DVD
• GPU temperature reached 70'C in use
• if vents got clogged with dust, GPU and motherboard temps could get VERY high

Interesting, eh?