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Draft Video: Token Ring on IBM PS/2 (Patreon)

Published:
2025-07-10 03:56:21
Imported:
2026-06

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Content

This is an in-progress draft trying to get some IBM PS/2s on a token ring network. I won't be able to finish this video until next week so I figured I'd throw it up as-is here. There are some blank spots with just audio where I haven't filled in B-roll yet. Let me know if you like this sort of post and definitely open to any advice on the token ring card issues!

Files

Draft: Token Ring on IBM PS/2

https://www.patreon.com/clabretro

Comments

ConnerWithAnE

I am all for a post like this. Neat seeing the process and I have been fiending for some Clabretro content!

t

enjoy watching anything you put out, interesting hearing about how you film and then edit in smaller chunks. it captures that in the moment, "I have no idea if this going to work but it'll be cool if it does" feeling that comes from working on old stuff. was that John c Dvorak @ 4ish mins on computer chronicles? how did that name jump into my head after so many years

IBM Museum

By the timing (and beard growth), pre-VCFSW? - My van broke down (in the best possible spot, but in a very expensive way) the night before the trip, as I was packing. I was going to bring items, but just have to react from here.

IBM Museum

You do a better job removing the 'drive platform' than John did - He didn't understand the latches as well.

IBM Museum

Token-Ring was officially released on October 15th, 1985 - I was in my first week of Navy bootcamp, so I had to catch up later. The 4Mbps (blank green dot) microchannel adapters are the 'Azores' chipset (IBM Token-Ring codenames were based on golf courses). The later 16/4 adapters with the separate RIPL socket are the 'Spyglass' ASIC (the big IC). I don't know if the 'Azores' RIPL ROM will work on a 'Spyglass'-based adapter - The RIPL page (which was put up with my images) at the 'Ardent-Tool' doesn't show the 'Azores' boot ROM, which is strange, because I know I have it (EDIT: The first two chart entries are mislabeled, and will work with the 'Spyglass). You should also get some of the later 16/4 "Short" adapters, which are based on the "Pinegrove" ASIC; There isn't a RIPL ROM socket, because it is integrated into the microcode ROMs (when the system is powered up, it copies over a section on the ROMs to system memory space, and that is the RIPL code). https://www.ardent-tool.com/NIC/RPL.html I think the 50Z has bad slots (both '2' and '3') - We may need to drop into ROM-BASIC to run a routine for how the adapters are being detected. 4Mbps adapters are 'E000', and 16/4 are 'E001'. For PC-DOS 5, there should also be the QCONFIG program that will read the adapter POS ID as well. But your theory about the 720Kb diskettes with the texElec adapter and conventional drive might be correct - I need to see if I can reproduce those results. You don't have to run 'Automatic Configuration', and it may be more descriptive to set the configuration yourself. We do need to see how the adapters are identifying and get the system to load the correct ADF.

Thomas Eriksen

that ended on a cliffhanger, did win11 manage to read and copy over to a new diskette???

Michał Szczepaniak

I would like to point out that RJ45 cables can come in all variations of shielding, UTP, FTP, STP, SFTP. People sometimes think that shielding is tied to a type of cable, my friend thought its tied to being cat5/cat5e/cat6 but its not. So when it said that one is STP and rj45 is UTP, rj45 could just as well be STP as well, just in that one case it wasn't

IBM Museum

In this instance, the nomenclature is from IBM, because the 'Type 1' cables were always shielded. Trivia is that the RJ45 connection on a wallplate was identified by IBM as a 'Type 3', and 'Type 2' was both 'Type 1' and 'Type 3' together. More trivia is that 'CAT 2' cable is 4Mbps Token-Ring, and 'CAT 4' is 16Mbps Token-Ring.

Jack Beckman

If adding the file on Windows doesn't work, I'd download a new one from Ardent (I'm sure it's there) then create a 1.44 disk with it. While your theory that the disk can't read 720k disks is probably correct, I wouldn't discount that all those disks COULD be bad. I recently bought a copy of PC-DOS 7, sealed in the box (NOS) and EVERY floppy inside was bad. I can't even reformat them. They are all crap (some of them even make strange noises in the drive, like they aren't spinning properly). As for putting up a work-in-progress - I like it, please continue to do so as it makes sense (like in this case).

clabretro

Post! Haven't gotten a haircut since then. Bummer you had trouble.

clabretro

Yeah I really need a shorter card with the RIPL built int. I'm hoping it's not the slots, I seem to recall I tried the McIDE in slot 2 without issue. Hopefully just a floppy drive issue

clabretro

I don't know yet, I haven't been able to get any further than what's in the video haha.

clabretro

I'll for sure download the adf file and just inject it right into the known-good ref disk image, hopefully that does the trick. You're right it is possible the disks have all aged the same way.

Juniper H.

I’m a simple lass, I see a clab video, I watch it. Looking forward to the full one!

DrScriptt

+1 for the liking this type of raw video content.

DrScriptt

Your video content, presentation style, and your personality is what make the videos for me. They could be shot with a QuickCam from the '00s and I'd still enjoy them.

Sam Edwards

It's always interesting that any independent YouTube creator also has to become their own videographer and editor, even if that's not really that exciting or interesting to them. So yes, I'm interested to see a little more about how you put your videos together. A little look at what gear you're using, and then a screen recording of your editing process would be interesting too. I know David from Usagi Electric always gives some quick stats on how many/how large the raw files were for his videos. And of course Shelby from Tech Tangents has made more than a few videos about his NAS of the week for his video storage. So don't be afraid to get technical!