So, I'm having a bit of a... unique time with my Asus K7M.
The board is a Slot A board with an AMD-751 northbridge and a VIA VT82C686A southbridge (personally before this board I have never seen a solution like this). The board uses an Asus-branded chip for sensors I believe (AS61256-8 / 9942S0701).
When I went to install XP SP3, it did not automatically determine it to be a board that supported APM, even though the BIOS itself has APM options and after manually-enabling APM support in the OS, it works as intended (although "sleep" is not an option; I have APM enabled but basically all of the individual options disabled in the BIOS, so that might be why, since I will be overclocking with this board). This comes off as strange to me, since my Super Socket 7 Soyo SY-5EMA+ v1.1 has perfectly normal APM support under Win2K and XP.
Anywho, moving on.
Whenever I open up HWINFO's "sensors" window, while it does seem to work just fine, it disables both the PS/2 keyboard and mouse ports in the process, as well as breaking how XP shuts down the machine (XP itself will "shut down," but then the board will still run and provide power to everything as if it were on). It does not affect USB peripherals plugged into the board, and opening the main report window does not cause any issues.
XP has been manually fully-updated (not via Legacy Update, but semi-automated installation of individual updates I organized a few years ago).
Let me know if you require anything else.