I would think so, yes. Especially a Pentium D OCed to 3GHz without adequeate cooling. Make sure you fan is still working and use some other programs to corroborate.
Pentium D's run hot;I know because I have the Pentium D 960.Don't worry about it your CPU is fine.You can always buy a Zalman CPU cooler though.It should make your processor run anywhere from 10 to 20 degrees F cooler.
If your comp is stable don't worry about it if you had over heating you would get crashes or reboots. Some motherboards show the temp wrong some temp utilities are wrong. I would never use stock coolers these days their just too loud and don't allow much over clocking. Zaleman coolers are the best big and easy to replace onto a new processor onece the backplate is on the motherboard and their very quiet.
Pentium D's run hot;I know because I have the Pentium D 960.Don't worry about it your CPU is fine.You can always buy a Zalman CPU cooler though.It should make your processor run anywhere from 10 to 20 degrees F cooler.
Not really, I have a pentium D 945 @ 3.825GHz and it idles at 37 degrees with an max of 55 degrees under load and that is in summer, in winter it gets even lower.