My OSI 610 build - Expansion for the OSI 600

[stephen_usher]

I am dreaming of a whole 32k of RAM being at my fingertips

[rubber_jonnie]

It still amuses me just how little ram we had back in the day and were happy with it and how much we have these days. my M4 Mac has 24GB but even that's small compared to another computer I have that has 96GB.

Great to see you've got it running. Are you bringing it to Cyber Legends?

I know, it's so tiny even mobiles have more RAM these days.

It amuses me that my 16GB M1 Macbook Pro seems to perform better than my 32GB work laptop...

If I can get to CL this year (I'd like to) then I'll bring it along, probably my SoC MK14 as well.

If I can get my Cosmac Elf II built by then I can bring it too.

[PhilC]

@rubber_jonnie sounds good, let's hope you can make it.

[rubber_jonnie]

@rubber_jonnie sounds good, let's hope you can make it.

Me too

[rubber_jonnie]

Well my RAM arrived today, and so far I've added up to 24kb and it's all worked perfectly

In addition I've now been able to boot to CP/M for the system.

I feel like an archaeological explorer

[stephen_usher]

I was wondering if you’d had time to fit it.

[rubber_jonnie]

I was wondering if you’d had time to fit it.

I need to fit the rest but too tired tonight having been into London for work today, but so far every bit of my Ali Express RAM haul has been fine, just another 8kb to fit.

It's slow going as I have to fit 2 ICs (1kb) at a time then test to make sure each set of RAM works.

It's looking like I should have spares having bought 50 and only needing 36.

[rubber_jonnie]

OK, so it's all installed

IMG20250619092230.jpg (273.89 KiB) Viewed 550 times

And I believe (Based on my calculations) that this is showing the correct amount of RAM:

IMG20250619091827.jpg (235.41 KiB) Viewed 550 times

And I can boot to CP/M just fine:

IMG20250619092000.jpg (199.61 KiB) Viewed 550 times

And DIR works but I haven't tried much else:

IMG20250619092011.jpg (232.64 KiB) Viewed 550 times

I'm running a RAM test, but I had 36 RAM ICs to install and just one was faulty, so I have quite a few spares now, which is great. I need to do some more mechanical assembly so the two boards are physically attached. I don't intend to put it in a case at this point (Maybe later) so I have some feet coming that should help keep it lifted up and supported.

[stephen_usher]

Almost time for another project then.

[rubber_jonnie]

Almost time for another project then.

Would you believe that I already have one lined up...