Because of this thread, I went back and checked the BIOS of my own computer. But I forgot that it is a Athlon 64 3000+ (socket 754) based system: the multiplier is locked on these CPUs... just as well in my case, as I'm not an overclocker, and the native 2.0 GHz +/- 10% is way good enough for me, and really, many others.
But that's not what I wanted to post about. In so doing, I went through all the headings in my BIOS menu again and in the one colloquially, but aptly, named, "PC Health", I saw that my CPU temperature was around 53 C or so, and the system (case insides) temp around 35 C. However, usually of late, in Windows (XP), the motherboard utility reports the chip temp as 60-61 C and the system temp around 44 C. Is this due to each program (BIOS firmware one as opposed to the mobo software one) using a different SENSING technique or CALCULATION technique?
If the CPU temp is really around 55 C instead of 60 C, I am going to postpone my planned redrilling of my case to put in yet another fan (a third system fan, or move one of them which seems to be doing nothing where it is), as I am skittish about spraying metal dust all over all my installed components.
If it is really around 60 C, I just might go and cover the insides with plastic or something and drill another hole on top of the case.
(Only partly tongue-in-cheek: maybe all I have to do is uninstall some Norton software components; they ARE somewhat invasive and as such, most likely uses lots of clock cycles. I think I might want to keep the Norton Utilities, though Symantec has stripped to bare bones and really are sort of redundant, given the scandisk, defrag, system restore, and system info functions now available in most varieties of Windows... )