Ethernet Card as major heat source?

[elfs]

My laptop runs incredibly hot, but I've noticed that it runs even hotter at the office. As far as I can tell, the only difference between that work environment and my home environment is that at the office I have an ethernet cable, and not WiFi. Could that really be the major heat source, contributing as much as 10C of extra heat to the laptop under normal operating conditions?

Comments

[voidrandom.livejournal.com]

Is it possible that there is more network traffic at work and that is just working the ethernet chips harder? Even a packet not addressed to the local machine has to be examined before it's ignored.