Time for the canned air and thermal paste.
I've got an (very) old PC from 2008. After I dropped it somewhere for about 2 years or so, yesterday when my laptop broke, I remembered that I had this old rig. So I took it out and tried to boot from a linux live USB and to my surprise it worked like a charm.
However after a while I went on Youtube to watch some videos when suddenly it froze, completely. No mouse movement, no keyboard...nothing. First I thought the CPU might have been the culprit but no...then I checked the RAM (from the BIOS) it seems to be fine too. Then I installed Windows 7 on it. Downloaded SpeedFan and HWMonitor and went on Youtube again, while watching videos I noticed that one of the temperatures was constantly increasing, from 38 to over 60 and then the PC froze again at about 62. I believe it is the motherboards temperature since HWMonitor shows it as Motherboard temperature. Both SpeedFan and HWMonitor show the same temperatures so I guess the sensors are working fine.
So my question is could an overheating mobo cause a PC to freeze just like that or am I just guessing wrong? And if yes, is it somehow possible to prevent themobo from overheating or I need to run the fans at 100 just like I am right now?
Thanks in advance.