The CMOS battery has expired so it WILL need to be replaced, otherwise it will not hold current date and time. 1990's Vintage TP Enterprise Sonic 486 Series Motherboard with intel 486DX-33MHz processor and 8MB memory (8x1MB). American Megatrends (AMI BIOS). Last three photos shows motherboard in use before removal. A nice 1990's era board to add to your collection.
