On Sun, 5 Jul 2020 21:02:31 -0700 (PDT), AK
wrote:

My computer was doing an image save of my hard drive to a second hard drive. (Gparted)

I have done that many times.

But I heard some unusual sounds coming from my computer case.

So I took off one of the side panels and could feel some heat that seemed uncharacteristically high.

I put a thermometer in and it read around 100 degrees F.

After the process, the temp went to around 80 degrees.

Do I need to be concerned?

Thanks,
Andy

https://www.goodnewsnetwork.org/

I used to build all of my computers and one of those cheap
indoor/outdoor thermometers was a great tool (the one with a probe on
a 3 foot wire)
You could put the probe in various places in the case, close it up and
run some hard hitting software to see where the hot spots were. Then a
little ducting and maybe some extra fans would bring the interior
temps down. I used to shoot for max 10-15 degrees above ambient on the
main unit that was out on the bench. Usually that was right over the
display processor chip. After seeing some commercial high performance
machines, I tried to get the air coming off the CPU out by the
shortest route.
I also found the power supply fan stopped being enough about the time
the first Pentium came out.