![restoration - Restore corroded AT motherboard with dead CMOS battery - Retrocomputing Stack Exchange restoration - Restore corroded AT motherboard with dead CMOS battery - Retrocomputing Stack Exchange](https://i.stack.imgur.com/bNvKp.jpg)
restoration - Restore corroded AT motherboard with dead CMOS battery - Retrocomputing Stack Exchange
foone on Twitter: "Unfortunately... I can't boot it. The problem is the dead CMOS battery. Because this uses a Dallas DS12887A to store the CMOS settings, and it's dead. So I can
![Amazon.com: 3X Panasonic CR-2032/GVN 3V Lithium Coin Battery Horz 3 Pins Tab for PC CMOS CHECKSUM Failure Battery State Low, System Options NOT Set, TIME Date NOT Set Display Type Mismatch, Memory Amazon.com: 3X Panasonic CR-2032/GVN 3V Lithium Coin Battery Horz 3 Pins Tab for PC CMOS CHECKSUM Failure Battery State Low, System Options NOT Set, TIME Date NOT Set Display Type Mismatch, Memory](https://m.media-amazon.com/images/I/61-RKFFmmLS._AC_SY355_.jpg)