Computer Geek Question

[Reefmagnet]

Just to add to the advice, most BIOS's will reset to defaults for the most part which is most likely exactly the same state when the computer was configured. Even if this is not the case, the computer is obviously going to continue to work after battery replacement because it's working now with a dead battery! Check the battery before replacement as it may be a case of electrolysis having damaged the printed circuit adjacent to the cell.

Is a good idea to set up the time sync from a GPS though if no regular internet connection is used.