My system randomly freezes under heavy load with no diagnosable information found in system logs. I am running Debian stable on the machine.
My machine is about 4 years old with AMD FX(tm)-8120 Eight-Core Processor, 8 GiB of RAM, NVIDIA Corporation GT218 [GeForce G210], 5 hard disks (500, 160, 160, 120, 40 GB). The CPU is about 80 degrees under heavy load.
What should I do to determine which component is faulty?
Edit: I may have mistaken the temperature. System monitor shows that CPUTIN is about 82 degrees and k10temp is about 63 degrees on full load. Is it too hot?