PC Archeology: A left for Dead IBM PC 5150 with a treasure hiding inside 🕷

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It's time for another episode of PC Archeology! This time we have a IBM PC 5150 that was picked out of the recycle bin, about to be shredded. I thought this was just going to be another run of the mill PC, but you never know what you might find inside.
-- Links
Testing floppy drives:
• Testing 12 mystery PC ...
Minus Zero Degrees (the best resource for IBM PCs:)
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Adrian's Digital Basement Merch store:
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Elenco Electronics LP-560 Logic Probe:
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Hakko FR301 Desoldering Iron:
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Rigol DS1054Z Four Channel Oscilloscope:
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Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
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TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
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TS100 Soldering Iron:
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EEVBlog 121GW Multimeter:
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DSLogic Basic Logic Analyzer:
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Magnetic Screw Holder:
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Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
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RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
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Plato (Clone) Side Cutters: (order five)
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Heat Sinks:
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Little squeezy bottles: (available elsewhere too)
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--- Links
My GitHub repository:
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--- Instructional videos
My video on damage-free chip removal:
• How to remove chips wi...
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino

Опубликовано:

2 окт 2024

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Комментарии : 500

@adriansdigitalbasement 11 месяцев назад

I forgot to mention in the video that there was really nothing interesting on either of the floppies I archived. Also, if you are curious, that EPROM I used in place of the ROM was a WSI 57C49C -- it's a drop in replacement but the issue with it is you can only program it on "fancy" programmers the Data IO 2900... so it's not really useful to most people since those types of programmers are impossible to find.

@BurritoVampire 11 месяцев назад

I've seen you reverse engineer weird memory expansion boards before, hopefully you take this Inboard on as a reverse engineering project as a reproduction is likely the only way I will ever come across an original, ever.

@minty_Joe 10 месяцев назад

So, was the spider's name "Boris"? 😂

@mnotgninnep 11 месяцев назад

I restored my one of these keyboards. The foam degrades inside and causes all sorts of problems, both with stuck keys and non-registering keys. I had to take it apart, clean everything and replaced the foam with a sheet of neoprene. It now works flawlessly. You will need a series of clamps top and bottom and a long one at the sides to help you get the layers clipped back together. Lastly, don’t pull off the space bar. It is clipped to a metal bar underneath and you will both break the plastic clips and be unable to reattach it without disassembling the keyboard again. When you do reassemble it, feed some dental floss through the post hole around the metal bar to pull and hold it up while you click the space bar back in. Once you are sure the space bar is clicked in and seated right, you can then pull it out.

@subynut 11 месяцев назад

That 386 accelerator card is super cool! Growing up, my parents had an IBM 5150 they picked up used. It had 640K of ram, CGA graphics, 1 Full Height 360K floppy drive, and a MFM 20MB Seagate Half Height Hard drive. It originally had MS DOS 3.3, a few games, and MS Works for DOS. My father and I upgraded it to a 386 33MHz and more RAM. During the upgrade, we discovered that the AT spec moved the keyboard port to right between the Keyboard and Cassette ports and increased the number of expansion slots in the same space as the XTs! So, we were limited to external I/O on the outer two slots and internal I/O card in the next two slots in, but couldn't use the rest of the slots near the center as the mounting brackets would not line up! We trimmed the case to allow access to the keyboard port and ran it that way for a number of years. It ran MS DOS and Windows 3.0. I played SimCity, SimFarm, SimAnt, and Railroad Tycoon on it as well as learning how to program in Turbo Pascal on it! Good times!

@pupaepedorra 11 месяцев назад

Seriously, this machine brings me memories of my early days with computers. When i started learning BASIC in the early 90´s, we were using 8088 and 286 PC that were ¨pumped¨ up with max RAM with very few or no wait states. They were all in the same room, as they were the ¨rookie¨ machines. They all had double 5.25 1.2 MB disk drives and no hard disk (on purpose). In that room, you could find a very odd selection of desktop cases, from old 5150, to unnamed clone XT, to even foreign weird ones. My favorite was an upgraded Televideo that was upgraded from 8088 to a NEC V20 and was working with... 640K of RAM!

@alfredklek 11 месяцев назад

Be kind to the spider, she probably spun that expansion card for you during the time that she was guarding that 5150 for you.

@NutDriverLefty 10 месяцев назад

I was a co-op student at IBM starting a few months after the 5150 was announced. I spent many hours plugging in 16KB RAM chips on the "Type A" motherboards, followed by 64KB RAM chips when the "Type B" motherboards came out. Then the XT, the "XT hard drive nightmare", the AT, IBM Cluster Program, IBM PC LAN Program, and Netware on PC for K-12 education accounts. I finished my co-op assignment a few months before the PS/2 was announced.

@dhpbear2 11 месяцев назад

9:10 - Those nut-drivers were originally designed for hex-head (slot-less) sheet metal screws back in the day.

@bobblum5973 11 месяцев назад

3/16- & 1/4-inch nutdrivers were the typical ones. Then Compaq came along and started using Torx head screws, as I recall.

@kaitlyn__L 11 месяцев назад

I saw someone in another video mention it’s 5.5mm, so most hex drivers miss it (going from 5 to 6). It wasn’t even about IBMs, it was something else and they mentioned IBM used these heads too.

@bobblum5973 11 месяцев назад

5.5mm = 0.2165354331 inches, pretty close to 0.25 (1/4 inch) so I think we could both be right. I don't think they were metric threads, but it's been so many years since I had to find replacement screws for that early a PC that I don't remember for sure.

@eDoc2020 11 месяцев назад

@@bobblum5973 1/4 inch is 6.35mm so 5.5mm wouldn't make sense as being interchangeable.

@bobblum5973 11 месяцев назад

@@eDoc2020 Thanks for correcting that. I think I fat-fingered the touch screen on my phone's calculator. I reworked it, and 5.5mm is roughly 7/32 of an inch. I think that's what I used since I didn't have metric sockets or nutdriver handy back then. 🤔

@JamieStuff 11 месяцев назад

That 386 card is an Intel Inboard 386/PC with the 1 MB expansion daughter board. IIRC, the Inboard sold for around $1K (!), and the memory expansion card was in the $600-$700 range for the 1 MB unit, and the fully populated 2 MB version was around $1K. So, that card you found originally sold for about $1700.

@philipclayberg4928 11 месяцев назад

Whew! Reminds me of the 100 MB hard drive that a friend bought for his Apple IIGS computer. He said it cost him $999.

@LittleDancerByGrace 9 месяцев назад

@@philipclayberg4928 I bought an entire brand-new MacBook Pro in 2011 for $1100...

@stevenfleckenstein995 8 месяцев назад

@@philipclayberg4928 The original ISA LIM 4 2mb EMS memory card available for the XT sold for about $1k per mb. A 20 mb half high Seagate hard drive was $650.

@alanharkleroad4376 11 месяцев назад

The spider is like, Happy Halloween, Adrian. But that 386 accelerator card in a 5150 is just insane.

@Toonrick12 11 месяцев назад

Indeed. Wouldn't be surprised if this was used in the early 90's before upgrading to a 486. If this computer could talk or have a working hard drive...

@olddisneylandtickets 11 месяцев назад

@Toonrick12 I had the exact same setup in 1989, 5150 was from junk pile at work and 386 card was $20 from some guy name Fish from the Recycler. Machine was finicky but did run 386 speeds and apps and it overheated nicely...

@katho8472 11 месяцев назад

LIke a Beetle with a Posche motor in it :)

@wernerviehhauser94 11 месяцев назад

@@katho8472well, Beetles always have Porsche motors since Ferdinand Porsche designed the original Beetle....

@jacobmckenna8661 11 месяцев назад

@@wernerviehhauser94🤓

@oldhifi8820 11 месяцев назад

Thanks for the blast from the past, as a lot of your videos are to me. I am from Portland and starting about 35 years years ago(when computers were expensive) I started buying broken and used computers computers and parts. I would rehab them and resell them. I have done everything from the 5150 on up. I recognized what you had the minute I saw it. One time I bought a bunch of XT's out of a warehouse down on Produce Row in SE Portland. About 4 or 5 of them had a 386SX card like the one in your video. Several of the clone XT's had the pop up lid cases where top of.case was like the hood of a car. They were great to use for testing cards, HD's and floppy drives. Seen and done a lot of things. 286-20&25 Harris cpu's that would out run any 386SX, taking MFM drives and using an RLL controller to format them and then double or drivesppace the drive to get more capacity, installing and getting to run operating systems that were supposed not to run on a computer that Installed it on and a bunch of other things. Almost nobody used to wipe their HD"s in those days, I got the surprise of my life when some of the XT"s I mentioned were from the IRS and still had the programs and data on them,. I wiped the drives and reformatted them in a hurry, kind of spooky when you think about it. I stopped selling my rehabbed computers when the new stuff got so cheap like an Athlon dual core and motherboard for $69.00 of which I still have one running to this day. Why buy used when new was so cheap. The only thing today that consider cheap is SSD"s, can buy a 500GB one for less than $30.00.

@humidbeing 11 месяцев назад

Flatheads are still king in industrial, farm, and basically any dirty/severe environment. Why? Because you can clear the head with the tip of the screwdriver. Philips, torx, etc, can't be cleared of debris. If you try to put the driver in them you will only compact the debris and make matters worse.

@Lukeno52 11 месяцев назад

That accelerator card is really amazing, and it is so good to see that the machine holding it wasn't confined to a grave. I can only imagine how much of a lease of life it must've given it back in the day!

@networkg 11 месяцев назад

The spider jump scare alone deserves a thumbs up ! Another great video from the basement.

@kaitlyn__L 11 месяцев назад

I went back and played it frame by frame to see if the spider was walking of its own accord or getting pulled by the drive 😅

@retro-futuristicengineer 11 месяцев назад

Funy enough, Epictroncis released a video today, restoring Model F XT and Model F AT Keyboards. He also had some badly desintegrated foam pads and showed some replacements you can actually buy new. Regarding the POST error, I assume that the water in the keyboard caused some corrosion that is causing some kind of short, and be it a stuck key or something like this. The accellerator is great, I'd love to get my hands on one at some time to test around with it.

@madmanfrommars 11 месяцев назад

Epictronics even has a Model F repair video from a couple years ago - very helpful when I was doing work on my Model F

@coriscotupi 11 месяцев назад

09:05 - I still have a tool set with those e exact same nut drivers. The set came in a "hard cover" zippered black leather case and has also screw drivers, tweezers and an IC puller. After over 3 decades the elastic bands that hold the tools in place got kind of stretched out (I managed to re-tight them), otherwise the kit is in pretty good shape. And it's what I still routinely use today for servicing my PCs.

@mountainwolf95 11 месяцев назад

I'm assuming it was just cheaper to install the 386 card once the computer started to become too slow to run major programs than just buy an entire 386 PC although Im sure that in and of itself was not a cheap proposition, however its really nice to see an original 5150 up and running, especially with a faster brain and heartbeat. Great stuff as always Adrian!

@freeculture 11 месяцев назад

If memory serves right it was quite the opposite which is why these were never popular. I mean this thing would cost as much as a 386 motherboard, with the penalties of the slow bus. But its amazing something like that even existed, because its of course an "easy" upgrade if you just wanted your spreadsheets to run faster or such.

@alexandrecouture2462 11 месяцев назад

Great video! I got a very nice IBM PC 5150, with the 64-256k motherboard and a memory board, CGA and 2x 360k floppy drives in a garage sale this summer. The guy asked 20$ for it and I bought it right away. The guy was wondering a little bit why I didn't try to negotiate, but the price was already so good!

@lordterra1377 11 месяцев назад

Damn you stole it. I would have too.

@ShamblerDK 11 месяцев назад

I suspect the foam breaking down has made it conductive. Sounded like several keys were being held down at the same time, when the keyboard was connected. Also, at around 52:00 you're holding one of the live wires from the voltage switch dangerously close to the PSU chassis, which is a ground connection.

@El_K_Bron_Del_Moycas 11 месяцев назад

Hi Adrian. Epictronics has recently made a video reconstructing a model F keyboard. The video title is about the 5155 restoration.

@mdkoehn 11 месяцев назад

He posted another Model F video just today.

@aaronperl 11 месяцев назад

Oh my goodness, another Intel Inboard/386 !! ... as soon as I saw it in there I knew it looked just like the one we used to have. In fact, we also had the 386SX/16, with 2 MB of RAM. We did also have the 387 math co-processor (probably because my dad needed it for AutoCAD and other engineering software). I heard that we had one of the few that actually worked properly, but I've not corroborated that, I just know that it got us a few more years of use out of that machine. I even managed to get Windows 3.1 to run on it (in Standard Mode), despite the documentation explicitly stating it wasn't supported.

@philipclayberg4928 11 месяцев назад

And to think that Microsoft once thought that no one would ever need more than 640K of RAM in their computer. Such naivete!

@DarrylMcGee 10 месяцев назад

Amazingly, we talked MS into making a special Windows 386 for the Inboard 386. It was based on Windows 3.0. I think I still have the coffee mug MS sent the Inboard team when it was finished. The mug said, “Windows runs on the Inboard 386, who cares” 😅

@DaedalusRaistlin 2 месяца назад

As an Aussie, your idea of a giant spider is amusing :) Might be a good idea to blast these with air before digging too deep. But nice find, thanks for the look at it.

@Kboyer36 11 месяцев назад

I wonder how hard it would be to reverse engineer that accelerator card? It's always amazed me that with how many custom projects exist now to create new cards for old machines that no one has tried to make accelerators for these old 8088 based machines.

@jerseyforlife732 11 месяцев назад

the 5150 is the computer i learned DOS on.. that power switch was so satisfying.

@aaronperl 11 месяцев назад

Something for your future video on accelerators. If I remember correctly (it has been 30+ years), there are four "turbo" modes on the Inboard/386, which you can select with Ctrl-Shift-Alt-1 through 4 (with 1 putting the CPU back to 4.77 MHz, 4 going to full-speed 16 MHz). I do remember an additional BIOS thing running during boot, where it initializes and counts the 2 MB of RAM on the accelerator. Maybe that came from a utility program.

@freeculture 11 месяцев назад

Hmm a 386 put into 4.77, so you could finally play Digger properly... Aside from the odd badly written game i never saw any use for slowing down cpus that came with the infamous "turbo" switch many clones had.

@Epictronics1 11 месяцев назад

Fantastic find. Glad you could save the IBM. I just made a video restoring Model F keyboards. There is a guy in Canada on eBay who sells new foam pads for your keyboard

@FLECOM 11 месяцев назад

was going to recommend your model F video, nice to see you here! thanks for the great content

@Epictronics1 11 месяцев назад

@michaelscarport Thanks. Good luck with the restoration

@Epictronics1 11 месяцев назад

@@FLECOM Thank you!

@Epictronics1 11 месяцев назад

@michaelscarport woot! That is insane! Why YT? I have completely stopped using links in comments because they just get deleted. Those cork feet seem pretty good quality. This is my first KB that had missing feet

@hattree 11 месяцев назад

Hi Adrian, they did make adapters to use half height drives in these. My dad set one up for me when I was a kid with two half height 360K diskette drives and a ST-225 20 MB Harddrive. I didn't think I'd ever fill it. A company called Hauppauge Computer Works made 386 motherboards with 5 slots that would fit in those 5150 tin cans. I can remember using them to upgrade IBM PC 5150's to 386 in the late 80s.

@tomiluukkonen4035 11 месяцев назад

Another previous ST-225 owner here, although I cheated and ran it with RLL-controller for extra 10MB of capacity. Worked flawlessly and as I know that old machine+hdd was still in active use in late 1990's.

@dant5464 11 месяцев назад

That accelerator looks like an Intel Inboard 386 - I've been watching a bunch of old Computer Chronicles recently and "Add-On Boards (1988)" was one of them - skip to 14:27 in that episode. According to the guy from Intel it comes with 1 meg but the addon board clipped to yours should up that to 3.

@KameraShy 11 месяцев назад

It has its own Wikipedia page. "Intel Inboard 386" There were two versions: 386/PC and 396/AT. The PC version sold for $995 while the AT was $2,495 fully loaded. Real money back then.

@ChristopherIsene 11 месяцев назад

I did tons of such conversations like this on XT machines for the local municipality in the beginning of the 1990's, 386 25Mhz, 4Mb RAM

@Pixelmusement 11 месяцев назад

Quick Thought: Maybe write "No Terminator" on the two floppy drives in case you go to use them at some point and get mystified why they aren't working? That does seem like an easy thing to forget to check, especially with the checkmarks on them now! :B

@Snohup 11 месяцев назад

I recognize why the computer was in that state, as I've done something similar in the past: open, clean, try to fix, fail, remove parts useful to me (VGA card, terminators) and put everything together with the minimum number of screws so it won't make noises while transporting it to the recycling point.

@rastislavzima 11 месяцев назад

The reason why is everything so lazily put inside like unplugged and held with just single screw is probably because someone had a bunch of stuff for throwing away and he decided just to put everything in one package, so 5150 was used just as a trash bin.

@andyroid5028 11 месяцев назад

*_A 5150? That's insane! 😉_*

@KeritechElectronics 11 месяцев назад

Eddie Van Halen agrees!

@andyroid5028 11 месяцев назад

@@KeritechElectronics *_Well played, sir. 👍🏼🍻_* RIP EVH!

@douro20 11 месяцев назад

@@andyroid5028 The family has its own brand of guitars, amps and accessories.

@dirkwirsbitzki3264 11 месяцев назад

That 386 card must have costed a fortune in 1987. My first PC was 286-16 and I bought it in 1990.

@mrnmrn1 11 месяцев назад

Tip for the bad sector disk: I had very good results with completely unreadable C64 disks (like 80+ % of the sectors were unreadable when archiving them on PC with a 1541 connected to the parallel port). Cut open the disk envelope, place the disk on a paper towel, and clean it with an other paper towel moistened with Windex. Cut open a good condition sacrificial disk and insert the cleaned disk into its envelope. Completely unreadable C64 disks came up 100% readable with this method. That collection of disks was stored on an attic for 15-20 years, and they didn't like it.

@tigheklory 11 месяцев назад

Man I love that 386 accelerator board!!!You need to put in a math coprocessor in that and fully expand the RAM! I wonder if you can put an even faster CPU in that 368 socket!! Can't wait to for some Coleco Adam content! 🤣

@freeculture 11 месяцев назад

Hmm? Isn't that the one that wipes tapes left inside when turned on?

@tonyho6211 10 месяцев назад

Great video to see the old version of real IBM PC

@bartramirwin 11 месяцев назад

Awesome video , my first computer was a 8086 , since then i have had thousands of systems so your video and knowledge really takes me back to my beginnings thank you for the walk down memory lane

@kjtroj 11 месяцев назад

Nice! I've got one of these old Rev A boards and I had to replace tantalums, due to multiple shorts. That accelerator board is a nice score!

11 месяцев назад

The sticky black foam inside the keyboard can become conductive and cause lots of issues on higher impedance circuits. Make sure you take it off and clean up the surfaces. I would also blow it off with a compressor... Thanks!

@the1990kman 11 месяцев назад

IBM 5150...with a 386 CPU ISA expansion card. Now I have seen everything in retro computers. Also...I want one!

@iceowl 11 месяцев назад

you've solved a mystery for me. i used to work in a manufacturing shop that made a lot of face plates for telecommunications equipment, which were powdercoat painted. if there was even the tiniest speck of paint missing, they would have it buffed and repainted. i've always thought was silly and wasteful, considering the parts being made are going to sit in a closet and never be seen by anyone who would care about a tiny fleck of paint missing. maybe it's because they want to make sure the powdercoat prevents oxidation.

@kaitlyn__L 11 месяцев назад

That’s common with pretty much all painted iron/steel surfaces - a little missing spot, or a bubble under the paint, would definitely corrode within 5-10 years of service. It definitely seems wasteful of paint, but of course that’s much cheaper than sheet steel so it works out.

@tedcollins4684 11 месяцев назад

I worked on 5150s and 5154s. I also helped with the first ps/1s when they were having problems with corona arcing. I designed and built the 1st circuit jig to test audio.

@BurritoVampire 11 месяцев назад

Looks like an Inboard 386, I have one but mine doesn't have the RAM extension daughter board on it. I would love to get enough RAM to run Windows 95 on the thing but without an open source eproduction alternative to the extremely rare memory expansion, all hope is lost!

@hardlyworgen71 11 месяцев назад

Windows 95 had a minimum requirement of 4MB if I remember correctly. I once installed Win95 on a 386sx/16MHz with 8MB RAM and it was unusably slow.

@Milsparro 11 месяцев назад

I ran Windows 95 on a Pentium 100 with 8MB... Maybe 4MB of ram back in the day... Fast enough to play CDs lol

@BurritoVampire 11 месяцев назад

@hardlyworgen71 I'm sure it was. Good thing as a vintage tech person, agonizing slowness is part of the fun! If I want fast, I would just use my newer computers. I mostly just want to point at it and say, "Look at this lettle feller go!"

@KameraShy 11 месяцев назад

The power supply on the 5150 was pitifully underpowered. I looked it up and one site says it was 63 watts. I had to upgrade when I added a hard drive. $400 for a 20MB Seagate. Still have the 5150, original green monitor, original ps in a box somewhere, the Seagate and (I think) its interface card and cable. We hoarders preserve history.

@flunky02038 6 месяцев назад

interested to kn ow what PSU you chose to upgrade to? Am waiting on a 5150 from eBay and am nervous about using the original PSU.

@mrdali67 11 месяцев назад

Love seeing the joy at 1's boot into Dos 😄

@tramadol42 11 месяцев назад

You made me screaming, "You did shut the drives off!!!" 😆

@XeonProductions 11 месяцев назад

It wouldn't be October without seeing some giant spiders.

@marksmith9566 11 месяцев назад

Looks like the keyboard connector can be unplugged and a test cable installed to test.

@PixelPipes 11 месяцев назад

Dang a couple of those Inboard 386/PCs sold for almost $1300 each on eBay. I think they're rarer than you realize!

@timmturner 11 месяцев назад

Hope to see more videos from you soon Nathan.

@kc7klz 11 месяцев назад

My first computer I bought when I went to tech school in 1994 had a similar card. It was an Inboard 386. Mine was fully populated with 4 megs of ram and the 387 math co-processor on it. Properly configured with the right drivers, it was fast. My only drawback was I had an old ST-220 hard drive, and a CGA video card. I used it to dial into BBS's with a 2400 baud modem. I replaced it with a 486-DX 33 machine.

@captainkeyboard1007 10 месяцев назад

This show arouses my appreciation for [modern] computer technology while I am an end-user. I would not want to use anything else, because I type.

@cjh0751 11 месяцев назад

I always loved that IBM used Cork for feet on their original PC. These are the simple details I remember from back in the day. 5150 always reminds me of Van Halen's album. The 80s were the best years to be alive.

@capitanschetttino8745 11 месяцев назад

A truth big as a church my friend.

@dave_jones 11 месяцев назад

Nostalgia is a hell of a drug

@douro20 11 месяцев назад

Specifically Fel-Pro rubberized cork. I used #3026 which is 3/32" and comes in a 10"x26" sheet. It's very affordable- less than $7.

@tschak909 11 месяцев назад

Even with the RAM on the accelerators, you _HAVE_ to have that first 16K of RAM in the board, or the system will NOT POST.

@sorcererstan 11 месяцев назад

So what happened to the spider? "Crisis averted" means "squish"? 🤣

@philipl8184 11 месяцев назад

it didn't look too bad. I just repaired 3 that were much much worse condition than this. They all look brand new now after restoration.

@normangiven6436 10 месяцев назад

I have four of these with monitors in my downstairs. Go figure, along with parts.

@mytechnotalent 11 месяцев назад

I remember getting my first IBM PC clone, not the one in the video, when I was one of the last of my friends to consider anything else other than 6502 Assembler and C-64.

@vwfanatic2390 11 месяцев назад

I had one of those crazy computers when they first came out. That reminds me what would you call a Cray computer if they used this model name/number? Cray-cray

@batlin 11 месяцев назад

There is something really nice about the old systems with two 5.25" drives. I had an Atari ST with one 3.5" floppy drive, no hard disk and only 512kb RAM, so copying disks required a couple of disk swaps...

@blackterminal 8 месяцев назад

I had a similar setup. Though my father kindly had the ram professionally upgraded to 1mb a year or so after I received the ST for Christmas. None the less I swapped floppies a lot. A fantastic floppy drive that still works to this day. I loved my ST so much. I still have it.

@batlin 8 месяцев назад

@@blackterminal yes, the RAM upgrade makes a big difference! After a year or two I picked up another STFM with 4mb RAM which felt infinite. It was enough to set up a 2mb self-compressing ramdisk (Maxidisk) and still have more than enough to spare. Great memories learning to program with GFA Basic, Sozobon C and the various 68k assemblers on that thing. I had to get rid of them upon getting a PC in 1998, but picked up another pair of STs and a Falcon about 10 years later after finishing undergrad.

@jonathankovacs1809 11 месяцев назад

It is so sad to see computers treated like this. There are so many in need of even a basic computer. With that said I try my best to rebuild and restore my old computers and donate them to people I know that need a computer. It is getting really expensive to find parts do to some people getting greedy.

@pelgervampireduck 11 месяцев назад

"I switched it to no floppy drive. I wonder why the floppy drive doesn't work" :) hehehe my first thought was "you forgot to switch the thing back to on".

@chuckthetekkie 11 месяцев назад

I've taken my fair share of computers out of the trash and gave them a new life. The first computer that was mine was given to me by my aunt who got it from her boss as it was upgraded to Windows 95 and become BSOD city. It was an Epson with a Cyrix 486 50MHz CPU. That computer and reading the Macintosh Classic manual when my mom borrowed it from her father for college is what got me into computers and I built my first PC in 1997 when I was 10. That was fun.

@saifal-badri 11 месяцев назад

What a lucky find, that inboard alone is over $1500 with the expansion board 👌

@CATech1138 11 месяцев назад

oh fer the love of electronics....that staining is GEEK BLOOD the second cousin of Navy Mud....

@Midcon77 11 месяцев назад

I mean, this is super cool but WHY would you upgrade a 5150 to a 386? How much did that card cost vs. a comparable 386?

@bewilderbeestie 11 месяцев назад

If you're in a brown recluse area, one thing you can do is to make sure your house has a decent number of cellar spiders. They're harmless to humans but specialise in eating other spiders, so having some around will massively reduce the number of brown recluses or black widows around. They're also very polite, staying off the floor, and they prefer dark, secluded areas, so you won't interact with them very much. But chances are that spider was just another retrocomputer enthusiast whose ancestors had been patiently keeping the computer cockroach-free for the last decade.

@YoungGarrett 11 месяцев назад

I was 1 week old when that keyboard was inspected.

@williamsquires3070 11 месяцев назад

Sorry, Adrian, but that accelerator card is a time anachronism; if you attempt to use it in that computer, the Time Police will come for you. It’s alien technology, you know. 🤣😆

@gvii 11 месяцев назад

Slotted screws have been around for 400+ years, and Phillips came to be sometime in the early to mid 1900's IIRC . Slotted screws are cheaper to manufacture, they allow for a lower profile screwhead, and you can put more torque into them before the screwdriver starts to cam out, especially if you're using a screwdriver with a hollow-ground blade. The only real advantage of a Phillips over a slotted screw is that it is self-centering. But that one advantage alone outweighs nearly all of the slotted screw's advantages combined. There are some situations where the slotted type of screw pulls ahead, such as the wrist and pocket watch industry where the screws holding the bits of the movement together are almost microscopic and flush-fitted. Where one errant sneeze can end up costing you hundreds or thousands of dollars. One of those screws rolls off the table and hits the carpet, you'll NEVER see it again. Lol....

@MatthewHill 11 месяцев назад

9:06 I have those _exact_ same nut drivers! Same gold-and-black color scheme, too! From a toolkit I used back in college to repair PCs on the side. I forget where I got it originally but I'm pretty sure I have it around somewhere! It's been a while since I've had to use it; most modern PCs don't use the nuts those things were uniquely suited to drive. Wow that brings back memories...

@saifal-badri 11 месяцев назад

We need an intel inboard detailed video given that there is none on youtube! There is a special microsoft windows 3.0 for the inboard and some smart guys figured they could swap some drivers fromt that to make 3.11 works on an xt.

@fstasel 10 месяцев назад

11:30 The giant spider!

@roypennock8046 11 месяцев назад

As a Canadian I must insist that the square drive, or Robertson as we know it here, is superior to all other screws...🤣🤣

@definitelycasualpcs8789 11 месяцев назад

Lucky that it came with a model F. Ive yet to come across one for my (still unrestored and unknown working state) 5150

@ZafleTheGreat 11 месяцев назад

Love your content. Keep at it! 🎉

@vegapiratradiovpr425 11 месяцев назад

Giant spider 😁😆🤣😂

@loomhs 10 месяцев назад

The spider is hardware Dr. Web antivirus implementation.

@AdamHougham 11 месяцев назад

Another great episode! I remember in the UK a company called Evergreen Technologies offering complete Pentium-class computer replacement cards for 486 and older machines - the old motherboard was completely bypassed and only used the ISA slot for physical support holding the 'accelerator' in place. The power supply and all IDE cables etc attached directly to the card. I worked in PC manufacturing at the time and they approached us to stock them as an upgrade option - sadly for them we really wanted customers to purchase new machines!

@ΩραιαΤατση 11 месяцев назад

Happy national day for us Greeks ,and just fixed my amstrad PCW 8256!!!

@davidfisher8882 10 месяцев назад

This video was great to watch. I started my career working on these and other older IBM PCs, terminals etc. I remember there were so many adapter cards our customers would want installed. Math coprocessors, upgraded video, etc. You really took me into the wayback machine Mr. Peabody. Thanks!

@isaactanner6403 9 месяцев назад

Hi Adrian !! You can use this accelerator pin out to make a cable to use in the MACH20 MICROSOFT Accelerator !! Waiting this video !!

@hawkmoon3312 9 месяцев назад

Holee shit. I have the exact same Screwdrivers sitting in my tool kit. Different sizes, too. Could never remember where they came from. Somehow they just got inherited by every toolbox and I never quite figured out what to use them for. Thought they wer for some weird lug nuts. Well, this solves a mystery after 25+ years...

@andrewsuvorow6818 11 месяцев назад

Approximately in 1998 I also encountered the same combo of 5150 and 386 accelerator in it. But my friend who got these boards, was not interested in retro computers and disassembled it for parts. It was not working (missing bios ROM). Also 386 board had only 1 meg and no second board for memory expansion. in all other ways it was pretty much the same (16 MHz and intel sticker inside). even the ribbon cable to 5150 CPU socket was of the same type and color. I begged 4 BASIC ROM chips from this and keep they in my collection until now.

@Eos_Galvus 11 месяцев назад

Any computer with an accelerator like that has a lot of personality. :D

@jstinn123 11 месяцев назад

I enjoy your "rescue" videos. My community has a "recycle" center. All the e-waste is tossed into a open dumpster and then sent out to be crushed and shredded. I have asked if I can pick from the pile of the doomed vintage computers that show up from time to time, but the recycle center refused to allow it. It's very frustrating and a little sad when I see a pile of computers from the 80s enter the dumpster to be destroyed.

@artofnoise5013 11 месяцев назад

It's astonishing to me that computers of this era are still going to recycling.

@VinceValenti 11 месяцев назад

Hah, anyone else notice that expansion slot cover just laying on the motherboard beneath the left drive cage?

@nil2k 5 месяцев назад

The 386 card inside surprisingly has a wikipedia page: en.wikipedia.org/wiki/Intel_Inboard_386 that definitely existed before this video.

@marcuslundblad6977 11 месяцев назад

So, you can actually "go on the web" with this computer 😁

@algorithms-memo104 6 месяцев назад

The keyboard might be OK. If I saw the video correctly, you were getting the same boot behavior with it as with your known good keyboard.

@TechTimeTraveller 11 месяцев назад

Spiders are the reason I stopped buying stuff from Australia. :) The 386 board is super cool. I have a Sota 386 board that came with a Commodore PC10 my friend gave me. Never did really test how much of a difference it made. It had a spot for the original 8088 CPU and you could switch back and forth between that and the 386.

@alisharifian535 11 месяцев назад

if the ram could be upgraded to 4 MB, running windows 95 on it would be a very watchable sight to see.

@chloedevereaux1801 11 месяцев назад

spade head screws are ok, you have venomous spiders not poisionous.... yes im dislexic... venom if it bites you, poison if you eat it.....

@twocvbloke 11 месяцев назад

16 megahertz? A proper speed demon there... :P

@Wikcentral 11 месяцев назад

Epictronics did a keyboard refurbish video today. It is a good video on how to take it apart, replace the foam and get it back together.

@stepheneickhoff4953 11 месяцев назад

I'm worried that the clown who last touched this machine was actually allowed to screw up more useful ones. I mean, screwing in the card without seating it in the slot... that's a special kind of stupid.