The SMP has no “HEATSINK”. (All OLD WD Devices had a Heatsink … and the Live Hub has at least a “Fan”)
Ahhh … the Old WDTV Live … Nice Chunky Heatsink to keep things “Cool”
You could go this the “Extreme” to cool it down … but really, you should not have to resort to this.
The guy in charge of the Original XBOX360 “Thermal Management” must work at WD now ? 
Pictures of the “Custom Fan” from this thread …
http://community.wdc.com/t5/WD-TV-Live-Streaming-Discussions/WD-TVlive-SMP-overheating/td-p/438538
