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520stfm mb c103253rev.1 RAM upgrade options
Posted: 28 Jan 2022 16:06
by microman
I have recently acquired a 520STFM, it has a C103253 Rev.1 motherboard, fitted with TMM41256AT-12 PLCC18 RAM chips What are my upgrade options?
512kb -> 1 Mb source of plcc18 ram CHIPS,
512KB -> 1 Mb add on board
512kb -> 4 mb upgrades
Thanks
Peter
Re: 520stfm mb c103253rev.1 RAM upgrade options
Posted: 28 Jan 2022 16:09
by exxos
Can you upload a picture of your motherboard it will be a lot easier to see what you have going on..
Re: 520stfm mb c103253rev.1 RAM upgrade options
Posted: 28 Jan 2022 16:23
by rubber_jonnie
microman wrote: 28 Jan 2022 16:06
I have recently acquired a 520STFM, it has a C103253 Rev.1 motherboard, fitted with TMM41256AT-12 PLCC18 RAM chips What are my upgrade options?
512kb -> 1 Mb source of plcc18 ram CHIPS,
512KB -> 1 Mb add on board
512kb -> 4 mb upgrades
Thanks
Peter
I have in the past attempted to upgrade one of these by adding the ram and it didn't end well.
Personally I'd opt for one of these:
https://www.exxosforum.co.uk/atari/store2/#0035