super mario 64 not saving

nintendo9649

i bought a super mario 64 rumble pak version on ebay a few weeks ago. it was working fine until today. when i went to load the save file all accounts are clear and say NEW. is it the battery ? or is it a EEPROM cartridge?

Lincoln

There's no functional difference on the av port between USA and Jpn. If you know the cords (yellow/white/red?) and everything else is fine then there's something wrong with the console.

retrofixes

try adjusting or cleaning the jumper pak

Mog

How many games did you try? The console might be real dirty, try a few games and clean them.

nintendo9649

after reopening the console, removing jumper pack, removing/replacing cartridge adapter , the unit is functioning normally. thanks for the suggestions.

nintendo9649

bump: updated thread with new problem

Pikkon

Looks like you need to replace the BU9850 chip.

http://atariage.com/forums/topic/209034-fixing-a-n64-cart-that-wont-save-and-doesnt-have-a-battery/

Guntz

Yes, Super Mario 64 uses 4Kilobit EEPROM for saving, so no battery there. It's worth a try to replace it, but make sure to try every other possible fix before doing chip replacements.

nintendo9649

not what I was hoping for, hoped it was just the battery. for the $6 the game cost ill probably just leave it alone and get another.