@@RetroSpector78 when I first saw it I said 386, then I saw the not CGA card and said, ok a 286..., but alas, twas mda and an 8088. Super cool, I never find anything that old around here...
@@CoreyDeWalt I immediately noticed the decimal point on the MHz display so I thought of something like an 8 MHz 286. You could also see the monitor in the preview and that definitely looked like monochrome, so I'd ruled out a 386 or 486 even before I'd started the actual video. I've never seen an XT with a 3.5" FDD though, let alone a 3.5" MFM HDD! I fully expected a Seagate ST225 or something along those lines - 225s and 251s were immensely popular for 286 machines here. Back when I played with those machines a lot they were definitely less likely to burst into flames I have to say! Back in the 90s I only had one explosion, a dual game port controller had a short and blew up the power supply of a 286. Sadly that wasn't a standard AT power supply and couldn't be replaced without sawing holes into the case. That was a very sleek-looking case with LED display and everything, it must have looked very modern when it was new!
Had a bunch of these I bought from my school in the 90's (8088 IBM clones/actual IBM 5150s). Good times were had piecing together 2 working ones. Funny how much more they are worth today when I picked up an entire lot of 6 complete systems for about $20 USD in 1995. Coming from a C64 it was still a huge upgrade for me :)
Not only was this video fun and suspenseful, but also educational in teaching how to find and replace blown capacitors. Thank you! I can't wait to see what's on the software side of the inside of this unit.
hahaha I was looking at those tantalums on the board as you were checking for shorts and I said to myself "hmmmmm, i wonder if he will change those out" - kaboom. lol
Comment number five, huh ... Fireworks .. Smoke .. and every time that @RetroSpector78 pump the lever 😏... I couldn't stop thinking that a Velociraptor was going show up 😁 🤣 😂 .. So very cool video.. 👍👍
Was fun to shoot … love these exploding caps. The smoke on the video card was also impressive but need to have a multi camera setup to capture all angles at the same time :)
What a nice machine! I seem to actually find the clones more interesting than the original IBMs. Thanks for the mystery! ;) That blue cap seems to be 100nF one (104) btw., so probably a ceramic one.
Yeah found it pretty unique. And to think that I wasn’t really intending to see let alone buy it as I was there for something totally different. More on that later.
Nice a monochrome monitor. When I first started into computers. That PSU was not really a norm. So once in a while we would have a customer come in and order one. Well I can't remember. But I think it was almost twice as much. Customer would get pissed. Funny how things changed.
Maybe the broken cap is C14, just next to the ISA slot, and it's just its smoke from that cap the blackens the 100n cap. I agree, I never saw 100n caps break when they are just connected to +5V. I did see ceramic caps go leaky/short and causing a PCB fire in a 7kV supply, though.
In case you are not aware of it: The memory test of XT Phoenix BIOSes can be skipped by pushing the space bar. The ESC key we all know from newer computers does nothing. Without a keyboard connected, that knowledge is obviously of no use, though.
I can’t wait to see if that ST125 drive still works! These seagate 3'5 stepper drives seem to be very reliable so there’s probably a good change that it will :) Ah those caps, you tested if they were shorted first but they still went boom anyways.
Had to deal with these XT machines in past. Even had one if exactly same case and very similar monitor in my first job. RAM chips in separate DIP packages - indeed it is XT. 286 which we had here, already had RAM modules in SIP package.
Not sure if you know this, but the turbo switch doesn't increase speeds bit attually down clocks the system making it more compatible. Some games, and software back in the day designed for say a 40mhz CPU would run fine but then you might try running something that's designed for 33mhz so the turbo switch down clocks the system to match or at least make more system sense.
@@erichkohl9317 Hahaha... That's hilarious, cos I can't imagine if I still keep that XT of mine... ... the components would be now rusting, filled with dusts, and if bugs make a next there... ... eroded by bio-acids. Lest we are professional collectors, I don't think our wish as casual players or users will have happy endings anyway. Hahahaha... ... But yeah, I miss that XT as a... ... first PC, now an antique. But think of it that I can't play much games... ... if I not recall wrongly, my school mate used my XT for Ultima II... ... which was a very special game at that time, if compare to Alley Cat. Hahahahaha... ... Good old days... ... That shows we had IT childhood. Then internet came, and virtual reality advices or wisdom of that day become by now super serious commercial business of today, but I of that generation still stick to internet as virtual reality. 90s saw the fastest of technological advances... ... Youngsters won't understand what PC used to be. Hahahahahaha... ...
@@HenryTan-pj2oi Yes, maintenance is probably the #1 challenge to this hobby. I keep looking around to find a good deal on an XT in good condition, but it's rare. Usually they're either being sold for parts and/or badly damaged.
@@erichkohl9317 If not recall wrongly, for sentimental reason I did keep my XT for some years, but... ... bugs came, metal erosion came, the entire unit... ... couldn't be maintained, and I looked at the label of my XT's hardisk... ... the capacity was so small. It couldn't be kept anymore, cos the motherboard confirm won't post. Miss the floppy drives. Hahahahaha... ... So no regrets. I wished I could keep it, but I know that was the end. This video brings back good memories. And nobody make Ultima 2022 these days.
The 100nF ceramic capacitor burning out on the MDA card is a very, very rare thing. Normally these are extremely reliable... Might have seen mechanical damage though.
Wow, reminds me of my first XT PC. That time got such digital display and a lock. That time there was this 'free' Alley Cat game floppy for us... ... and a... 20mb harddisk...? Hohohoho... ... Was a S$3800 something PC, which in today... ... that'd be the price for a decent competition gaming PC. Hohohohoho... ...
EEVblog had a video on how cheap ceramic cap parameters fluctuate significantly depending on temperature, voltage and vibrations. As far as I know, the only good ceramic caps are of C0G/NP0 type, and I'm yet to find a 10uF of one of those. Although for DC filtering the cheaper ones should work just fine.
@@Arti9m You don't need C0G across the power rails. In fact you shouldn't find tants in signal path to begin with, they are pretty nasty too, MLCC are almost benign in comparison. X5R are standard around these capacities and they're easily good enough. I think recently enough you'd expect them to be Y5V and you just have to overrate those and tolerate the behaviour. In fact with the placement that i can see here, presumably well upstream from a ceramic, half the board away from immediate consumers, a modern cheap aluminium electrolytic would do just fine. In the 80s, i believe (don't sue me, i might be wrong) there was a time when tantalum was cheap for these sort of capacities of a handful uF and low voltages, which is probably how they ended up there, not because of their performance.
@@SianaGearz I think tantalums were particularly popular for their compact size in the late 70s and early 80s. Dual used them extensively in the motor electronics of their TOTL DD turntables and they fail left and right, mostly 1 and 2.2 µF. Most people just replace them with new aluminium eletrolytics and it works fine.
There has to be a gentler way to get these things going. I think there was an old talk by James (Bald Engineer aka AddOhms) who was working at Kemet at the time, and i think i took home that the tantalum capacitors don't like being stressed very much, and this can be any kind of stress, it could be impact, vibration, external temperature, like every time you let a device like that sit for a time and maybe carry it about, it could be in a bit of a peril. But you can gradually bring up the voltage to condition them and they'll be able to re-form nicely and avoid becoming fireworks. I don't know the classic PC enough, but what if you had a custom power supply that would gradually walk up the voltage, and what if you held down all the ICs all in reset while this is happening, as a safety measure of sorts? Is there a way to hold every IC in reset simultaneously on a PC of that era?
By the way, James has become a big classic computer nerd himself. He does 8-bit computer repairs and redraws and validates their schematics 2-3 days every week. Oh and the talk was "James Lewis - They're Just Capacitors" on the Supplyframe channel.
A minute in, I'm gonna take a guess at 286 or 386, judging by the XT-style power supply. Comtex was using that style power supply into the early 486's. CGA video, since they were often coupled with printer ports. Probably a 286, in that case. Later: 8-bit ISA and an AMD 8088-1. 10MHz 8088. That's older than I thought.
my thoughts exactly ... was surprised to find an XT in here. But the case does provide some nice upgrade possibilities as I feel a 286 or 386 would fit in very nicely.
@@RetroSpector78 It just so happens to be similar specs to a Hyundai XT clone I'm playing with. Mine only has 6 slots though. Was buggering around for several months with it, trying to solve a RAM issue, which I was eventually able to trace to a single NAND gate.
Finnaly First Comment :D Btw i was not surprised that the capacitor blew up... its kind of a normal thing, i have 2 or 3 boards here that will have the same faith when i have time to power them on :D Good video, looking for a second part :)
When I first saw it I thought this could be an AT class machine, a 286, 386 perhaps? But this one has deceiving looks. There’s just something about that case that doesn’t make one expect it to be an XT. It’s the tower form factor and the beige colour of the drives that made me think that. I guess you shouldn’t take a computer on face value based on just it’s looks….. it’s definitely a bit odd for an XT. I guess looks can de deceiving.
If that be a 35 years ago PC, ain't likely a AT. I remember I got my first XT around 12yo... then around 14yo in my sec 2 years you got AT 286... then AT 386... ... Cos 35years ago from 2022, XT sold for around S$4000 which was like USD 2000. So unlikely AT.
Who else had to re-watch the blowup part for a closer look because the first time it seemed like it was the graphics adapter going boom? EDIT: I made that comment halfway through, after the sparky thing, I guess I was kind of foreboding the smokey one later on, for some mysterious reason.
0:59 The bent pin in the DB 25 port is triggering my OCD. Want to get my hand with some tool through the screen and straighten it. (Of course, like 99% of people making such slightly silly kind of comment, I have no real OCD... Uhm, well, as far as I know!)
It is possible to get away with using the computer without those tantalums next to the connector. If you are using a decent more modern atx supply anyhow. I have a 386 here that I just clipped them all out and the machine has been fine since. First time I powered it on of course I had an exciting pop from one lol.
Před 3 lety+1
I would just put Electrolytics caps there instead. A friend and I looked at to fix up a 286 board for him, after number 4 tantalum blew I just replaced ALL of them, like 25-30 of them with 10uf 16V or so Electrolytics from Würth because I had that at home. Board ran just fine with that and the PCB print even seems to suggest electrolytic where an option. I personally cant see why modern electrolytics or even polymer cant be used instead.
@ Ohh for sure. My 386 didn't have issues with anything but the bulb on the 12 volt rail. and the 5 volt shorted as well. So those ones got clipped off, none of the other capacitors on the board were removed. Just the 4 next to the AT power connector. I figured I will get around to putting replacements in there one day. But for now i am not having any issues.
08:44 And here I thought all the July fireworks were done with!
That lil guy totally lost its head, how exciting 😄
Actually Is early Clint !!...... in Belgium I think it is the 21 of July 🥳 ..
That was real Electroboom style.
for a 35 year old PC it really renders smoke pretty nicely
And fire. 8:57
Bloody funny... ... Hahahahahaha... ...
Druaga would be proud: "Hey smokers."
😂😂
420... :-)
ssd's and weed :)
:D
I never thought there was an XT class tower. I assumed they were all desktops. Unique
Aaah love a good mystery PC, what’s in there WHAT’S IN THERE! 😀👍🌱 ancient crusty tantalum!
I Definitely wasn't expecting an xt judging by the case alone.
Same here .... Thought for sure 286 or 386. But does provide some nice upgrade opportunities
@@RetroSpector78 when I first saw it I said 386, then I saw the not CGA card and said, ok a 286..., but alas, twas mda and an 8088. Super cool, I never find anything that old around here...
@@CoreyDeWalt I immediately noticed the decimal point on the MHz display so I thought of something like an 8 MHz 286. You could also see the monitor in the preview and that definitely looked like monochrome, so I'd ruled out a 386 or 486 even before I'd started the actual video. I've never seen an XT with a 3.5" FDD though, let alone a 3.5" MFM HDD! I fully expected a Seagate ST225 or something along those lines - 225s and 251s were immensely popular for 286 machines here.
Back when I played with those machines a lot they were definitely less likely to burst into flames I have to say! Back in the 90s I only had one explosion, a dual game port controller had a short and blew up the power supply of a 286. Sadly that wasn't a standard AT power supply and couldn't be replaced without sawing holes into the case. That was a very sleek-looking case with LED display and everything, it must have looked very modern when it was new!
14:42 I was waiting for the keyboard to explode, like on a Star Trek episode.
That had a good supply of the magic smoke
AND it seems he managed to get most of it back in where it belongs :-D
I've never seen a PC of this class in a tower case. Consider me intrigued. Nice fireworks!
So calm in the face of fire! I’d be panicking for sure 😅
Like Mustie1 when one of his engines goes on fire!
That case is gorgeous. Would retrobrite.
Nah she's better with the aging
Yeah will see what I can do.
@@AiOinc1 If the case front and side panels were the same color maybe ... But then, to each their own.
Burning tantalums yet again ;-) Looking forward to the next part.
That power on was beautiful. 10/10 Wouldn't try again.
I love all the smoke!
Looking forward to see what will be on the hd, if it still works.
Great video!
Had a bunch of these I bought from my school in the 90's (8088 IBM clones/actual IBM 5150s). Good times were had piecing together 2 working ones. Funny how much more they are worth today when I picked up an entire lot of 6 complete systems for about $20 USD in 1995. Coming from a C64 it was still a huge upgrade for me :)
Not only was this video fun and suspenseful, but also educational in teaching how to find and replace blown capacitors. Thank you! I can't wait to see what's on the software side of the inside of this unit.
hahaha I was looking at those tantalums on the board as you were checking for shorts and I said to myself "hmmmmm, i wonder if he will change those out" - kaboom. lol
Lol I thought you'd added some CGI for comedic effect for a second, but no, real fireworks:)
Comment number five, huh ... Fireworks .. Smoke .. and every time that @RetroSpector78 pump the lever 😏... I couldn't stop thinking that a Velociraptor was going show up 😁 🤣 😂 .. So very cool video.. 👍👍
Was fun to shoot … love these exploding caps. The smoke on the video card was also impressive but need to have a multi camera setup to capture all angles at the same time :)
I'm sold on anything with a big red power switch.
What a nice machine! I seem to actually find the clones more interesting than the original IBMs.
Thanks for the mystery! ;)
That blue cap seems to be 100nF one (104) btw., so probably a ceramic one.
A double feature of magic smoke!
4:00 As soon as I saw that the display had a decimal I guessed 6 or 8MHz 286
Edit:
9:31 I was wrong it's an 8088
Lol me too bro
I still have a few turbo 8088 boards.
Yeah, I guessed the same. Or possibly a very early 386.
The tantalum temper tantrum... never fails.
Very interesting , I really like the XT class PCs
Can’t wait 2 see part 2
Funny how the comment bot at the top stole your comment ;-)
Love the look of that case
Yeah found it pretty unique. And to think that I wasn’t really intending to see let alone buy it as I was there for something totally different. More on that later.
This form factor looks very much like a 1984 robot.
this beautifull machine looks like more modern than it is, near 386 era. dont judge by appearances. merci pour la vidéo détente!
Maybe there is a RIFA cap in the power supply that will pop in the next episode ^^
my bet is on the MFM harddrive's pcb. :)
Tantalum Fire Dance Party :)
Your videos are always so informative - especially the part about the caps. Good stuff 👍
Well, that went down in flames.
It has a Chinon Floppy, we need that for the Amiga Community. ;)
- Kaboom?
- Yes Rico, kaboom.
Love the look of that case
Always love seeing computers right around my age! Smokin' video indeed ;-)
Nice a monochrome monitor. When I first started into computers. That PSU was not really a norm. So once in a while we would have a customer come in and order one. Well I can't remember. But I think it was almost twice as much. Customer would get pissed. Funny how things changed.
Yep, the amber glow really does it for me as well.
That poor tantalum capacitor really said 🤯
To quote Bugs Bunny: "HOBOKEN?!"
That was a spectacular first boot attempt :D I hope you can get the rest of the computer up and running :)
RIP capacitor. Thoughts and prayers go out to your family..
Thoughts and prayers also go out to the blue capacitors family..
Very nice video, thanks again.
Very informative video. Thank you.
Weird. First time I've ever seen an XT in a tower.
Same here.
Nice video!Next time I must have a fire extinguisher nearby when testing old motherboards!
14:00 it looks more like 100n high-voltage ceramic cap... Never seen those go smoky like this.
Maybe the broken cap is C14, just next to the ISA slot, and it's just its smoke from that cap the blackens the 100n cap. I agree, I never saw 100n caps break when they are just connected to +5V. I did see ceramic caps go leaky/short and causing a PCB fire in a 7kV supply, though.
Wow, explosions and smoke. This was quite exciting. Hehehe...
Awesome video! :D
In case you are not aware of it: The memory test of XT Phoenix BIOSes can be skipped by pushing the space bar. The ESC key we all know from newer computers does nothing. Without a keyboard connected, that knowledge is obviously of no use, though.
Lesson of the day, you gotta check those old PCs carefully, before you put the whole place on fire.
programmer: what type of file has the compile data?
The front of this pc: DACOM
very nice!
Still waiting for the second part ...
Now that is nice
Nice case and legs. Yep same situation with my 286 week ago - explosion. Classic tantals.
That's a nice one!
Ha, case reminds me of a droid design I saw somewhere.
Noooooooooooooooooooooooooooo, magic smoke!
Nice XT clone. Like to see part 2. Great video.
Yeah already have the footage so not going to end up in the part 2 graveyard :)
I can’t wait to see if that ST125 drive still works! These seagate 3'5 stepper drives seem to be very reliable so there’s probably a good change that it will :) Ah those caps, you tested if they were shorted first but they still went boom anyways.
Had to deal with these XT machines in past. Even had one if exactly same case and very similar monitor in my first job. RAM chips in separate DIP packages - indeed it is XT. 286 which we had here, already had RAM modules in SIP package.
Looks like you could do a RAM upgrade with all those empty sockets.
Yep. Supports up to 1MB. More on that later
Nice find!
Yeah … really accidental… more on that later
Not sure if you know this, but the turbo switch doesn't increase speeds bit attually down clocks the system making it more compatible. Some games, and software back in the day designed for say a 40mhz CPU would run fine but then you might try running something that's designed for 33mhz so the turbo switch down clocks the system to match or at least make more system sense.
Like you said at the end, I personally don’t think I have ever seen an XT machine as a tower.
Mine was also a horizontal box.
@@HenryTan-pj2oi Yep. I had one in the late '80s, and then sold it to a friend. Now that retro computing is so popular I kind of wish I had it back.
@@erichkohl9317 Hahaha... That's hilarious, cos I can't imagine if I still keep that XT of mine... ... the components would be now rusting, filled with dusts, and if bugs make a next there... ... eroded by bio-acids.
Lest we are professional collectors, I don't think our wish as casual players or users will have happy endings anyway. Hahahaha... ...
But yeah, I miss that XT as a... ... first PC, now an antique. But think of it that I can't play much games... ... if I not recall wrongly, my school mate used my XT for Ultima II... ... which was a very special game at that time, if compare to Alley Cat. Hahahahaha... ...
Good old days... ...
That shows we had IT childhood.
Then internet came, and virtual reality advices or wisdom of that day become by now super serious commercial business of today, but I of that generation still stick to internet as virtual reality.
90s saw the fastest of technological advances... ... Youngsters won't understand what PC used to be. Hahahahahaha... ...
@@HenryTan-pj2oi Yes, maintenance is probably the #1 challenge to this hobby. I keep looking around to find a good deal on an XT in good condition, but it's rare. Usually they're either being sold for parts and/or badly damaged.
@@erichkohl9317 If not recall wrongly, for sentimental reason I did keep my XT for some years, but... ... bugs came, metal erosion came, the entire unit... ... couldn't be maintained, and I looked at the label of my XT's hardisk... ... the capacity was so small. It couldn't be kept anymore, cos the motherboard confirm won't post.
Miss the floppy drives. Hahahahaha... ...
So no regrets. I wished I could keep it, but I know that was the end.
This video brings back good memories. And nobody make Ultima 2022 these days.
That supposed to be a relaxing video before sleep. Now I'm stressed due to the explosion and smoke.
The 100nF ceramic capacitor burning out on the MDA card is a very, very rare thing. Normally these are extremely reliable... Might have seen mechanical damage though.
Wow, reminds me of my first XT PC. That time got such digital display and a lock. That time there was this 'free' Alley Cat game floppy for us... ... and a... 20mb harddisk...? Hohohoho... ...
Was a S$3800 something PC, which in today... ... that'd be the price for a decent competition gaming PC. Hohohohoho... ...
... ein interessantes Video, danke dafür
I use ceramic cap's, now that they are available in "large" values
EEVblog had a video on how cheap ceramic cap parameters fluctuate significantly depending on temperature, voltage and vibrations. As far as I know, the only good ceramic caps are of C0G/NP0 type, and I'm yet to find a 10uF of one of those. Although for DC filtering the cheaper ones should work just fine.
@@Arti9m yea I am sure for dc filtering application even the cheapest ceramic's will be more stable than tant's from 30+ years ago
@@Arti9m You don't need C0G across the power rails. In fact you shouldn't find tants in signal path to begin with, they are pretty nasty too, MLCC are almost benign in comparison. X5R are standard around these capacities and they're easily good enough. I think recently enough you'd expect them to be Y5V and you just have to overrate those and tolerate the behaviour.
In fact with the placement that i can see here, presumably well upstream from a ceramic, half the board away from immediate consumers, a modern cheap aluminium electrolytic would do just fine. In the 80s, i believe (don't sue me, i might be wrong) there was a time when tantalum was cheap for these sort of capacities of a handful uF and low voltages, which is probably how they ended up there, not because of their performance.
@@SianaGearz I think tantalums were particularly popular for their compact size in the late 70s and early 80s. Dual used them extensively in the motor electronics of their TOTL DD turntables and they fail left and right, mostly 1 and 2.2 µF. Most people just replace them with new aluminium eletrolytics and it works fine.
'Dacom', I thought that brand sounded familiar ;-)
Sorry for the phone-call, you probably needed that time for editing. Dacom Hoboken only a few kilometer from me, never new that company.
I would like to build a sleeper in one big boi case at sone time
Interesting New Jersey USA has a city called Hoboken. Perhaps some Belgians made it big in the British Colonies?
8:45 - oh shit !
Old mystery PC Smoke!
Explosions! Smoke! And whopping 640K RAM!
ha ha no smoke without windows ;)
Before the bang, I looked at that little gang of tantalum caps and thought, that's a terrorist cell. Could set off an explosion anytime.
FIREWORKS !
It would take some funny case indeed to sell an XT clone in 1988...
There has to be a gentler way to get these things going. I think there was an old talk by James (Bald Engineer aka AddOhms) who was working at Kemet at the time, and i think i took home that the tantalum capacitors don't like being stressed very much, and this can be any kind of stress, it could be impact, vibration, external temperature, like every time you let a device like that sit for a time and maybe carry it about, it could be in a bit of a peril. But you can gradually bring up the voltage to condition them and they'll be able to re-form nicely and avoid becoming fireworks.
I don't know the classic PC enough, but what if you had a custom power supply that would gradually walk up the voltage, and what if you held down all the ICs all in reset while this is happening, as a safety measure of sorts? Is there a way to hold every IC in reset simultaneously on a PC of that era?
By the way, James has become a big classic computer nerd himself. He does 8-bit computer repairs and redraws and validates their schematics 2-3 days every week.
Oh and the talk was "James Lewis - They're Just Capacitors" on the Supplyframe channel.
Those tantrum capacitors....
3 minutes in and already mentioned the reset button 4 times 😂
And the big power supply .
Beige computers are real gem these days :)
This one is more yellow than beige but might also be able to fix that.
ALWAYS recap old electronics.
Let me guess... that was a tantalum cap... :-)
And indeed it was... :-)
I always do. Old tantalums and electrolytics. Still had one (just replaced) tantalum pop though. Haha
Gorgeous find! Would it be from the 286 or 386 era of PC's?
All will be revealed !
you can see in the video, it's an AMD 8088, plus lack of 16bit ISA's were kind of a hint ;)
A minute in, I'm gonna take a guess at 286 or 386, judging by the XT-style power supply. Comtex was using that style power supply into the early 486's. CGA video, since they were often coupled with printer ports. Probably a 286, in that case.
Later: 8-bit ISA and an AMD 8088-1. 10MHz 8088. That's older than I thought.
my thoughts exactly ... was surprised to find an XT in here. But the case does provide some nice upgrade possibilities as I feel a 286 or 386 would fit in very nicely.
@@RetroSpector78 It just so happens to be similar specs to a Hyundai XT clone I'm playing with. Mine only has 6 slots though. Was buggering around for several months with it, trying to solve a RAM issue, which I was eventually able to trace to a single NAND gate.
Finnaly First Comment :D
Btw i was not surprised that the capacitor blew up... its kind of a normal thing, i have 2 or 3 boards here that will have the same faith when i have time to power them on :D
Good video, looking for a second part :)
Will be coming soon.
When I first saw it I thought this could be an AT class machine, a 286, 386 perhaps? But this one has deceiving looks. There’s just something about that case that doesn’t make one expect it to be an XT. It’s the tower form factor and the beige colour of the drives that made me think that. I guess you shouldn’t take a computer on face value based on just it’s looks….. it’s definitely a bit odd for an XT. I guess looks can de deceiving.
If that be a 35 years ago PC, ain't likely a AT. I remember I got my first XT around 12yo... then around 14yo in my sec 2 years you got AT 286... then AT 386... ...
Cos 35years ago from 2022, XT sold for around S$4000 which was like USD 2000. So unlikely AT.
Who else had to re-watch the blowup part for a closer look because the first time it seemed like it was the graphics adapter going boom? EDIT: I made that comment halfway through, after the sparky thing, I guess I was kind of foreboding the smokey one later on, for some mysterious reason.
I thought tantalum capacitors are eternal.
12:02 you got a message
Couldn't read the marking. Sure it's 10µF? If it reads 104 .. that is 10*10^4 pF = 100 nF.
0:59 The bent pin in the DB 25 port is triggering my OCD. Want to get my hand with some tool through the screen and straighten it. (Of course, like 99% of people making such slightly silly kind of comment, I have no real OCD... Uhm, well, as far as I know!)
I’ve lost capacity in my years also.
You just won the Internet... :-)
Tantalum tantrum :)
If you don't stop playing with that power switch, you'll go blind!
The correct term is "spitzinsparken"
I'm going with a 386 or 286
It is possible to get away with using the computer without those tantalums next to the connector. If you are using a decent more modern atx supply anyhow. I have a 386 here that I just clipped them all out and the machine has been fine since. First time I powered it on of course I had an exciting pop from one lol.
I would just put Electrolytics caps there instead. A friend and I looked at to fix up a 286 board for him, after number 4 tantalum blew I just replaced ALL of them, like 25-30 of them with 10uf 16V or so Electrolytics from Würth because I had that at home. Board ran just fine with that and the PCB print even seems to suggest electrolytic where an option.
I personally cant see why modern electrolytics or even polymer cant be used instead.
@ Ohh for sure. My 386 didn't have issues with anything but the bulb on the 12 volt rail. and the 5 volt shorted as well. So those ones got clipped off, none of the other capacitors on the board were removed. Just the 4 next to the AT power connector. I figured I will get around to putting replacements in there one day. But for now i am not having any issues.