I have an oldish laptop which is shutting down due to an apparent thermal overload. I want to determine if the overload is real or somehow imagined.
Usually the shutdown occurs just as I logon to Win XP and before I can open any temperature monitoring software. However, the fans suddenly go to maximum speed, and a few short seconds later, the unit powers itself off.
However... if I boot into the BIOS, or the DOS-based recovery system that is loaded on the laptop (an ASUS A6U with an AMD Turion 64 MT-30 1.6GHz in case it matters) then it seems able to run for ages without any thermal issues.
I have two theories: (1) There is some kind of software issue that (for example) loads or runs something that might mess with the temperature monitoring system (recalibrating it, for example) and fooling it into shutting down; or (2) Windows XP uses far more power-hungry code compared to DOS or the BIOS program, and genuinely causes extra heat to be generated, which leads to a genuine thermal issue.
Are there other explanations? Which is the best explanation?
P.S. I have already re-pasted the CPU 3-4 times now, and have observed a slight discoloration on one corner of the CPU. However, I can't say whether this slightest bit relevant.