Fujitsu FM TOWNS II Fresh・E Battery Replacement

FM TOWNS II Fresh・E Battery Replacement

When my FM TOWNS II Fresh・E suddenly refused to boot from HDD and Towns OS (from CD) didn’t show the HDD anymore, my first thoughts were that the HDD has finally given up. It sounded like an airplane engine lately (and still does). Then I noticed that date/time settings were lost too, so it was probably related to the BIOS battery. To access or replace the battery (3V CR2450) the whole unit needs to be disassembled.

FM TOWNS II Fresh・E
FM TOWNS II Fresh・E

1. Open the case by removing the screws on the back and the sides
FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

2. Remove the front panel and the two metal plates on top of HDD and FDD
FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

3. Remove FDD, CPU, HDD, ODD and the expansion port riser card (remove all expansion cards and dummy shields first!)
FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

4. Remove expansion port cage, metal plate, SCSI/ODD interface riser card, PSU (note the position of the small metal plate!) and finally the big metal plate
FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

5. Remove the mainboard and the battery from the area circled in yellow and replace the battery (or solder wires to a socket)
FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

FM TOWNS II Fresh・E

6. Put everything back together. These are the parts that were removed:
PSU, FDD, ODD, HDD
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Riser cards for SCSI/ODD and expansion ports, CPU
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Expansion port cage and various metal plates (the two small plates on the right side were attached to the PSU)
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