Toshiba Satellites fans are situated deep. Not that easy for “normal” people to take apart. I don’t like the idea of pulling out the system board. I doubt I could put it back together
My worst situations breaking down Laptops were on Toshiba (will never buy one again, btw.. but is possible. Just have different places to store the tiny screws.. remember where each in goes..
Once you get the shell off, you can clean the fan and surrounding areas. Biggest prob, that I can remember, is putting the screws where they are supposed to go... and the long ones are the easiest ;^)
Trial and error type situation here.. learn as you go.
If you do nothing, system will shut down from overheat soon anyway :/