20-08-2021, 11:29 PM
There were 2 version of the PC85. The pic of your Menu shows it is the first version. The second version, generally referred to as PC85b, has extras included in the Menu and had an updated coreboard. I tried the PC85b eprom IC27 (PAK 5, aka the Menu) in my PC85 (same as yours, the 1st version) and it crashed also.
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ChickenMan
ChickenMan
