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[Osborne 1] OZROM memory tester

clueless_engineer (Brett)

Experienced Member
Joined
Nov 10, 2023
Messages
75
Location
Port Macquarie, Australia
Hi,

Thanks again to @nelgin for making the 3rd party OZROM BIOS ROM available. I was able to use it to identify a faulty RAM chip in my Model 1. Replaced it and the memory test was then clear.

This also solved some issues with software I was having ... the CP/M Help and SuperCalc wouldn't work, for example, which makes sense.

I made a video here.

And here are some explanatory images.

You can find the ROM and manual on my Github, and maybe more places now.


OZROM RAM Test 1_50per.jpg OZROM RAM Test 2_50per.jpg


OZROM RAM Test 3_50per.jpg
 
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