I have successfully installed FM1608 DIP chips in my WPC games

I was messing around with my GQ-4x4 programmer to read/write those chips and tried to restore my previous highscores from before installing them (would be nice to somehow keep them)
Was not very successful so far. The only thing I managed was to change the name in the highscore list-even though I could only modify the name such that the checksum is not changed-otherwise the default names get restored from the EPROM
screenshot from the BSD code with the highscore names is atteched

I could not find the addresses where the highscore numbers are stored-no idea how to spot or change them-seems they are somehow encoded
Would also be interesting where the correct checksum has to be entered in?

Did anyone else successfully mess around and managed to restore their personal highscores via writing them to the NVRAM?
Any ideas/hints welcome-I do not have much knowledge on those kind of things but keen to mess around and lern...

the only related info I found was that but was not very helpful to me: https://github.com/mattvenn/ds2604-sram-driver

ram (resized).JPG

thanks guys for the quick responses and slochar for showing me where the actual highscores are hidden.....so obvious but I missed them

As stated above I can modify the name and/or the highscore such that the checksum is not changed-otherwise the default names and scores get restored from the EPROM..so there seems to be some kind of checksum/controlbyte or whatever

I did also do a file compare after entering the grand champion score but there were so many differences that I can not figure out where that controlbyte is located nor would I know how to calculate a correct controlbyte

dumped my BSD RAM files there:
https://drive.google.com/drive/folders/1zenDT35G-a03-qtLoSGPwVrBEXCerT73?usp=sharing
one ist the original and the other is the one after achieving the Grand champion with a score of 448.970.080 and entering the name `HGR´

thanks for the input, but don´t want to mess that thread up-created a separate topic: https://pinside.com/pinball/forum/topic/restoring-writing-own-highscores-to-nvram#post-6591485

Has someone successfully used the FM1608 on a Capcom (pinball magic) instead of the zeropower M48Z08 ?
I assume it is working-pinout also the same
Just wanted to have a confirmation before installing one

I can confirm that the FM1608 NVRAM is working as expected on my Capcom pinball magic

I figured out how to restore my personal highscores and write it to the NVRam chip
details here: https://pinside.com/pinball/forum/topic/restoring-writing-own-highscores-to-nvram#post-6623391