Hi ! Recently I saw this post : http://forums.benheck.com/viewtopic.php?f=18&t=38664 To sum up, he replace the S-RAM chip of the original cartridge with a F-RAM chip (non volatil save). At the end a guy conclude that the FM18W08 chip is perfect to Pokemon Gold/Silver cartridge (he tried and it works). I decided to apply this mod to my Pokemon Gold cartridge (I already lost my saves and replaced the battery 2/3 times). But a FM18W08 chip was not so easy to find, so I read some datasheets and found the FM1808 (old version of the FM18W08) as a solution. I ordered it from China, and tried to solder it on my Gold cartridge. Unfortunately, I didn't manage to have a working game (no save, and sprites in black and white). But I soldered the chip to my Yellow cartridge and it works. Is it possible that I didn't solder the chip correctly on my Gold cartridge ? In fact, I had to insist, and solder/desolder to have a working Pokemon Yellow. If the chip is not adapted to Pokemon Gold/Silver, I will try to find a FM18W08, but I don't know where. I also have to buy a new Pokemon Gold, my cartridge is fucked up.