that is too hot at 80 to 90C it self shuts down.
are you running the poor thing on a blank or the like blocking vents?
the vents need cleaning or all PCs over heat, a service to do every year for most folks, for sure with pets and lint max.
use only Shin Etsu grease 99% of other brands, all clones of clones are junk for sure magic silver bs names and such.
is the fan running fast , it must at that temp, is it.
does the PC slow down that to must happen.
where to you get the temp from some program that does not work with this PC? easy to do that, wrong.
intel arc says its a 2010 processor and many that old run hot
and if 83C that is too hot, if true. for sure.
page 60 in the intel data sheet shows,
max watts is 35watts,
the Core max is 90C
the gpu on die is, 85c max.
turboboost allows power rise to 35watts and if heat is too high
it slows down clocking and the chip cools .
does the fan blow hard and fast.
does the radiator next to fan , looks like tiny car engine radiator
does have all lint hidden on the inboard RAD side, clean?
most folks never think to look here.
ever see this the copper colored core here, RAD
when the core rad works it dumps lots of heat from the output of the core rad, that you hand will feel, if no heat felt there and the CPU is hot, you have bad cooling FOR SURE.