My laptop overheats after 20-30 minutes but one and only when I'm using dial-up, not when I'm on broadband?

what could it be?

Answer:
Sounds resembling the modem itself is getting hot. That would be the most practical assumption. You are using actually landline dial up and not an nouns card, correct? If so, then I would voice it's the modem itself getting hot. Depending on the model and if it's under warranty, you should enjoy tech look at it in defence there is a enthusiast that isn't functioning properly. I use my laptop as my desktop- it's docked, but using broadband and it's never ever turned off, and I've never have it overheat.
Sounds like a hardware profile adjustment. Do you have a separate hardware profile for Dialup, and a profile for Broadband?
Thats adjectives I can think of that would be that specific.
How do you know its overheating? And even at that, it should not be overheating if it have a proper cooling system. You need to procure something checked out.....maybe the dialup modem is over heat, i really dunno what else it could be.
There must be a problem with the internal modem. Try using an external one.
Maybe you enjoy an issue with the internal modem.

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