Must be, since it is at least as old as the machine which is 7-8 years, and still looked damp like toothpaste.
After running a few hours it's now up to low 40's on both cores. For an Athlon x64 4000+ Brisbane I found Maximum CPU Temperatures
suggested 78c.. Any suggestion for maximum to repaste? Maybe 55c?
I had heard that once you peel the heat sink off it must always be re-pasted and wanted to double check that with someone I trust. Thanks.