SRAM backup battery dead; saves not retained between sessions.
5 repair logs
+7 photosNEC — PC Engine IFU-30
Capacitors, voltage regulator and the supercapacitor that keeps the save data alive on this NEC PC Engine IFU-30 interface unit. Validated with Street Fighter II and Bomberman '94.
+7 photosBattery and cap replacements on Super Metroid and Zelda, with saves backed up and restored throughout. Initially used tabbed batteries as a stopgap, then swapped to coin cell holders once they arrived.
+3 photosFresh batteries in a couple of recently acquired Game Boy carts, saves backed up and restored using an Open Source Cartridge Reader.
+9 photosSuccessful repairF-RAM upgrade across a couple of N64 Controller Paks, no more batteries quietly erasing your saves. Revisited years later and redone properly, following nosIndulgences' research: the quick version can corrupt data in the long run, so this one adds a pull-up on the write-enable line.
+16 photosSuccessful repairSNK — Neo Geo CD
A cheap Neo Geo CD from 2021, recapped board by board: the AV and power board, the optical drive PCB, the mainboard and the original PSU. Later fitted with a NEO SD Loader to take the load off the drive, and an F-RAM save mod after it stopped holding saves even with a fresh battery.
