Re: MB-4D50L doesn't hold date/time
Posted on 2019-11-26, 23:21
Have you tried a jumper on the middle pins of the Ext. Battery connector ? Many of my older 286, 386 and 486 boards that have onboard battery need 2-3 jumped to use the onboard battery, it is removed for connecting external battery. You should not have to add any components to the board IF it …