The first IBM PS/1 custom riser & RAM + First Sound Blaster
ฝัง
- เผยแพร่เมื่อ 14 ธ.ค. 2024
- Let’s breathe new life into the hopelessly un-upgradable IBM PS/1 286-10 (Type 2011)
In this video, we dive into one of IBM’s iconic 1990s personal computers, the quirks and un-upgradability of a vintage IBM PS/1 2011, showcasing a custom riser card and RAM upgrade, as well as the installation of the first Sound Blaster sound card! a key piece of retro audio history.
In this deep dive, we explore the hardware mods possible, including the build of a custom riser to fit ISA cards and the installation of more RAM than originally possible.
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Riser: github.com/ret...
RAM: github.com/rea...
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Tools I regularly use
FNIRSI DWS-200 Solder station
PINECIL Soldering Iron
PinePowerPSU
AMTECH NC-559-ASM Flux
Kester 951 Flux pen
Hanstar 861DW Rework Station
Pro'sKit SS-331 Desoldering Station
Multicore 60/40. 0.38mm and 0.5mm solder
AOYUE int883 PCB Preheater
MaAnt Grinding Pen
RIGOL DHO800 70MHz four-channel digital scope
Tektronix 2246A 100 MHz four-channel analog scope
FNIRSI DPOX180H 180MHz Handheld Digital Oscilloscope
UNI-T UT61E Auto Ranging Multimeter
UNI-T UT890D Manual Ranging Multimeter
MESR-100 mk2 ESR meeter
TL866 II Plus Programmer
InfiRay P2 Pro Thermal Camera
DeoxIT D5 Contact Cleaner
PCBs from PCBWay.com
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Join me on Twitter: / epictronics1
Music by Karl Casey @ White Bat Audio
#RetroComputing #IBMPS1 #SoundBlaster #VintagePC #ComputerRestoration #TechRestoration #RetroTech #PCMods #VintageHardware #CustomRiser #RAMUpgrade #SoundBlasterCard
Great video. I also have a 2011. I upgraded the cpu to a Harris 286 25mhz running at 16mhz, made the ram module and the riser card and added a picomem to have a bigger hdd and adlib sound running the audio through the monitor speaker
10:14 Your vacuum-cleaner will surely find them. Watch the friendly tingling noise in the cleaner hose. Things only get *really* clean, if you can hear stuff going up the hose ... 🙂 Every part has a unique sound: transistors, solder blobs, small capacitors and bigger spiders.
The ram card should get the holes for the plastic lever arms included on the Gerber files, as well as the key slot. Thingyverse has the STL files for the plastic levers.
Love that we're in an age that we can just build missing components
I watch and enjoy all your videos right to the end, yet I don't have or plan to get any computers older than circa 1997. I guess quality has universal appeal. 😊
9:38 These chips might have coated contacts, since they might been intended for sockets. I had that already back then when I modified a PS/2 SVGA card for an additional 1MB of VRAM. Using some fine sandpaper on the lower, outer edge fixed that in later attempts.
Perfect doscember project! I love that PCB design and manufacturing has become so possible.
Nice video, not many people have built that weird little card :) I just wanted a platform to test things like 16bit scsi and xtide, and various sound cards on the 2011.
I think I have no more excuses to upgrade my very first computer (still perfectly working)! Thanks!!!
Oh nice! Didn't realize this project got released. I'll have to order up some of the boards to build up my 2011.
I always thought the form factor on these was super cute. I feel like if they had brought them to market a few years earlier they would have probably been a lot more successful, although maybe it didn't really matter in the end.
15:00 Yes there is a XTIDE with CF slot on it. I built one a few years ago and it works well. The one I built was through-hole but the other A1091 I designed uses all SMD parts and is smaller. It should be possible to squeeze it even smaller than the small CF version and position the CF slot so it is accessible at the back of the PS1.
Awesome video as always!
This is a good project to mention that there are fluxes that are more 'aggressive' than others when it comes to cleaning the pins/connectors. I keep a tiny amount of the angry stuff to clean really dirty stuff, but it is an absolute requirement to clean the board after use.
I was screaming at the screen the moment you put in the card the tab was touching the casing
9:40 The trick with old chips is to sand the chip legs all over with 400 grit sandpaper then they will solder very easily.
I hate to admit how many times I laid out a 7805 for a 7905 and made the same mistake. :) 3 times before I finally got the gutteral gut punch when I hear the sequence 7905.
And then there's 7805 vs 78L05 ... I absolutely NEVER trusted my memory and messed that one up hehehe
Anyone who refurbished a Vectrex knows that there's a plastic protector between the 7905 and the shield. When I first saw the riser go in and touch the metal shield, I squealed inside.
What a little beauty!
I have a 2011 with the "famipack" bundle... Lots of software and games plus the rare proprietary soundcard with midi ports... Cumbersome because of upgradability limitations but it is such a well made and fascinating machine
15:45 since the riser comes so close to the lid, could you glue some kind of guide to the lid so that the riser gets held straight up instead of falling over from the weight of the cards? Kind of like how the 5150 has those guides on the front of the case where extra long expansion cards would be guided into to hold them straight up?
Sounds like you need a PicoGUS and a breakout for a bracket for output, really.
Watching this it make one wonder if you could crowbar any more ram on by swapping out the onboard ram chips with an additional PCB to allow for larger chips?
I forgot to mention. The expansion card actually has 4MB, but the 2011 only supports 2MB + onboard RAM.
@ thank you, good to know. Unlikely I will ever get one, as my wife doesn’t want me to fill up the basement like I would when working. Of course those were all related to Amdahl front end processor equipment and a number of Fujitsu server systems. Would keep the house warm if I was running extended tests during the winter.
There are a other options for the 7905. You could cut off the metal tab (making is shorter) and then stick a heatsink on the back to dissipate heat.
10:15 - I use to think 0402 caps were small and then I got into watchmaking..... and then I also tried designing some very compacted PCBs, yeah 0201 and 01005 are massive headache if dropped on the floor, same with watch parts, they often tend to be the size of a spec of dust.
Looks like the cpu cover makes for an built-in heat sink for that transistor :)
Yeah really nice looking machine, unique and compact but there are also the disadvantages of the almost no space inside for upgradeability...
I was ready to accuse the riser designer but I don't think there are a lot of things to be done there, those ISA slots (even the 8 bit one) are huge for that little case and maybe an MCA riser would be better for that PS/1 to put one of those nice sound card clones for the MCA BUS and get rid of it entirelly. Nice video as always, cheers from Greece!
Definitely should fix that riser to move the cards back by about 15mm!
Great video
wow I never would have figured that out. I thought those regulators were grounded on the contact point. lol
Thank you! I have one of these and always wanted a sound card on it. 🎉🎉🎉
Could you install the components from the back of the board on the front instead? Would give more clearance at the back and looks like they should fit without interfering with the slots or cards.
Can you install an external floppy with th interface cable coming out near the mamory expansion card?
Var i sverige kommer du ifrån?
When you going to do the XTIDE Universal BIOS upgrade ?
You can push down the pin of the pen to make it wet again.
I am also curious why you buy so many PCs, what is your plan or what do you do with all of them?
It's ok to complain about stupid. Just call it like it is. It's a good idea that is piss poorly implemented.
TBH I'm not a fan of tantalums, then again, let's let them go flamey in another 30 years hehehehe
That soldering iron and soldering job ☹️🤢🤮👎
CMS is never an obvious choice. It sounds horrible IMO. lol
Yeah I really don't like this computer. I've always hated small computers. Even now. I recently decided to build a media streaming server with the free Jellyfin service. I had some spare parts (AMD 3600x + B550) and bought some new parts. It's bare bones. Almost nothing to it. Just the ram, NVME, and a small low form factor Intel A310 GPU. The mid tower is almost empty. But I can put anything in it. I don't like how even with adapters you still struggle with this machine.
I don't like that it was a simple money grab to soak the few people remaining at the time that held to "nobody gets fired for buying IBM". It was all out of date before it even hit the market, and required expensive, proprietary cards.
@@mal2ksc yeah......that's exactly what this feels like to me. It just seems like a really crappy computer.
Oh no, auto-translated audio, thats just awful, please switch it off.
You have to switch it yourself, click on the "gear" icon and audio track and choose the original.
There's a browser extension to disable translations, its called "TH-cam Anti Translate" and available for Firefox and Chrome and Firefox or Chromium based browsers.
It's a TH-cam thing and not an EpicTronics thing; you can select English United States (original) under the cog.
@@ruben_balea The problem is i like to download the videos with jdownloader 2, but then i get a random audio-track not even german. 🥸 Or i get german, but the translation is so bad i dont understand a thing .. - Sure it's a creators thing, if they disable it, the videos only get the original audio. Happily many big creators already switched off this crap.