Some information about this error (after you put a new CPU in) from Acer (just for Acer computers) in http://support.acer-euro.com/documents/reports/stepping.html
I agree with the general line of remarks I found on google for this error. If you didn't change the CPU (and you explicitly state you didn't do anything, so I assume it's the same CPU as yesterday) this points to some hardware issue either with the CPU or the motherboard. Things to try:
- go into the BIOS and reset it to it's defaults
- flash the BIOS (= install new copy of BIOS), see your computer manual on how to do it
- have the CPU replaced
- have the motherboard replaced
Putting a new battery in the motherboard might help to prevent the error from re-occurring.
Or accept the situation if it's a one-time error only. Or accept the situation if it occurs at every boot, but doesn't have any dire consequences for the functioning of your machine.
I expect people like Bob Proffitt or reefurbb (both more hardwarea oriented than I am) to give additional remarks. It's not a Windows 98 problem at all (totally OS-independent), so you might try the Computer Help forum if no definite answer comes here.
I am using Win98.
The system performed well yesterday, but when I turned it on this morning, an error showed in the screen:
"0327296 KB Memory Good"
"CPU BIOS Update Code Mismatch"
"Equipment Configuration Error"
I pressed F1, and I could go into DeskTop as usual.
Please help if you could!