Pyree :
Isn't a blow dryer going to heat up the component?
Make sure you have your fingers in the way. If it's too hot for
you . . .
Isn't there a shut off point for the mobo just like the cpu (72 oC) ? If so, then one could expect that it could take that amount of heat.
Regarding refilling air, I saw a micro- vacuum cleaner somewhere, with a bunch of attachments specifically for cleaning electronics. I'll let you look for it, if you care, but IIRC it wasn't prohibitively expensive.