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IBM PS/1 2121 restore & update

keke

Member
Joined
Sep 23, 2020
Messages
35
I am looking to replace the existing version of ROM software showing the quad split screen with an US/UK version - as the one I have is in German.

Any ideas/suggestions how to do this, and what tools I need?

Second question is about 4MB RAM expansion - any alternative options, custom modules?

I came across this github project, wondering if the modules are available? https://github.com/realfogman/ps1_ram_expansion
 
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