First post, by Kubik
I was just testing one of the Commodore PC-10's when I noticed that the memory test only recognizes 512KB RAM. I was thinking about populating the remaining 128KB (at least until I finish my RAM card), but to my surprise, the additional 4x64 chips are already populated.
As a total noob when it comes to Commodore PC's, I am puzzled - is this normal? Does the memory test only work with first 512KB? Is there a secret jumper?
I'll be grateful for any hints!