Hi,

A friend of mine has a Toshiba Satellite A15-S157,
and it recently starting a lot of noise intermittently.

I'm assuming it's the fan, but not being familiar
with this model, I'm not certain. Does this model
use a cooling fan, or just a heat sink?

Is it pretty easy to replace the fan on this model?
Can I easily purchase a replacement fan at, say,
BestBuy?

Thanks a lot.