ds12b887
DS12B887 is a battery-backed RTC (real-time clock) that was used on motherboards during mid-1990s.
When the internal battery dies, it doesn't keep time or BIOS settings any more.
I have managed to drill one of these RTCs open and resoldered + (plus side) wire to use an external battery (like CR2032).
ds12b887.txt · Last modified: 2025-05-12 09:48 by jaan