Sounds like your 80287 has failed short ;3 might want to swap out that chip. Protip: any chip that gets burning hot to the touch in general use is a dead chip, it's failed short, and it's bad and you need to swap it out. Also, on another note. I really like the idea of a backplane-based PC that you can upgrade just by swapping out cards like that. A similarly more modular approach to _modern_ computing, in a similar vein, would be a welcome thing IMO to a lot of people -- something where you have various modules that you can swap in or out to upgrade/etc memory, CPU, I/O, graphics, etc.
If you spent the '80s east of the Mississippi, you've never even heard of Computerland. Thanks for not being so California - centric that you failed to explain. 2:05 Future proofing is a proven myth so why do kids these days attempt it? Maybe because they don't remember before AM4 and don't realize that AM4 was the exception that proves the rule. Monitor defect looks like what happens when you stick a magnet next to the CRT.... at least until it totally spazzed out. Maybe you could just replace the coprocessor. Shouldn't be that hot and probably has an internal flaw. If this is the case, your FPU benchmark is invalid even if it apparently working when it doesn't get too hot.
It's a nice flash back to look at the 'upgraded' version of Computerland XT.. I was lucky my parents (mom mostly she was a payroll clerk for Burlington Coat Factory at the home office in Burlington, NJ) anyway, she needed a PC she could use at home for whatever reason, I never ever remember seeing her use it, but they bought a Goldstar XT complete setup, CGA monitor, XT IBM Clone, 2 5 1/4 drives NO HDD though, yuck, it did have 640k ram so that was nice. I upgraded it the best I could for a 10 year old, was lucky and got a cheap Trident VGA card (super I think) and a 2400 baud modem to add to it.. I'm pretty sure it was 87 when they got that thing, I know we upgraded it very shortly thereafter, with the Vga monitor and graphics, maybe 2 years into having it.. man we had that PC until I built a 386 a few years later, finally had a hard drive, a whopping 100mb IDE drive though, I was the man back than! haha memories. Thanks for this one..
You're welcome! ;-) Definitely an interesting machine. As for the CRT fault, I've never seen anything like that before. Very odd! It moved around a bit when the video mode changed too.
15:50 the original IBM PC AT was 6mhz, I think later revisions stepped it up to 8. Maybe Computerland assumed some software would be coded specifically for that original clock.
Just opened the video and I am almost entirely certain that the hard disk drive in this machine is a Miniscribe MS-III, probably a 3425. It could be a Tandon TM-252, though. 3:02 Ion trap or centering magnets have come misaligned 4:19 Miniscribe MS-III 6:00 A company I buy most of my hard drives from, DreamHardware, rebuilds power supplies. Might be worth sending this one off? 8:40 missed a seek, needs oil in stepper shaft. If you ever need help with one of those drives, get in touch. I collect and repair vintage hard disks, I have a community of other collectors, and I have a large number of spare drives. 10:26 3438! The RLL certified version, very nice. 12:46 Miniscribes have an exercise mode built into their firmware, it makes the drives do butterfly seeks repeatedly.
There is no ion trap, those disappeared in the 1950s when aluminized picture tubes appeared. There are no centering magnets on a color tube either, the magnetic rings that adjust static convergence can't make a shadow like that. Something is loose and causing a shadow, it could be a flake of the internal aquadag or possibly the getter or part of the electron gun. In 30 years of working on CRT displays I never saw a symptom quite like that though.
Yes I was reading- I think it is supposed to run at 6mhz? I haven't found any manual for the BC286 though and what to adjust with that if it is indeed running at wrong speed.
@@TechTimeTraveller From what I can remember, the 287 is synchronous with the 286 clock but needs to be "told" to run at a slower speed. Some boards had a jumper for this, but yours doesnt seem to have any jumpers at all so maybe a utility or bios setting? Bios battery is gone so maybe there is a bios setting that is by default wrong for it?(looking to put 287 in 2/3 clock mode) I went back thru your video and spotted that you do have a 287-8mhz so thats good. Cant think of anything else other than the 627xf chip above it getting hot. Have a good one.
The fix for the 287 overheat is to just outright go and replace it with an 80287XL, which is basically a 387 in the same package and 100% will function the same with the addition of being way faster than the 287 it's replacing... and CMOS to boot! I don't recall but I think the 287s of that time were NMIOS and ran pretty hot, but this was the same with the 286 itself. stick an adhesive heatsink to the top of the 286's metal cover there.
Just found the channel, really dig how informative it is, giving a bit of history while walking through the actual tech too. Another video I liked was the account fraud miniscribe had, very amusing
I actually lived just outside Staatsburg, NY for a few years! It's a blink-and-you-miss-it town slightly off the main road, basically just a dot on a map, just north of Hyde Park and Poughkeepsie.
Only knew where it was because I grew up just south of Poughkeepsie. Never expected to hear it mentioned on a random youtube video, much less one related to tech
I'm in Mass. and the name was vaguely familiar. And the name fits in with the history of the area. I did a search and got a hit for 27 Carol Dr, Poughkeepsie, NY 12603. Someone's house. Also a company called A1CS in Brewster that is probably gone, but their web site is still up from 2017.
They are just wired up to the expansion connector at the top, you need an option board to make them do anything, trouble is I don't know if anyone actually released one. It was an future option offered by IBM so everyone copied it so they could say they were compatible.
I remember Computer land as a Kid. You put everything on credit. As for prices back then. I would have to double check but the prices seems about right. Except maybe the 286 loaded model. Then again hard drives was 569.00. Not sure why they added in a tape backup. Also includes the monitor. You have to be care full. When I started in computers in Mid 1991. Companies was still doing the old trick of naming the price without a monitor. If I ignore scandals. A good example is Radio Shack. Even they stopped selling computer due everybody was selling computers and at a lower price. I'm sure you are correct about paying a premium as we call it for the name.
@@TechTimeTraveller I was a service tech at a store in Marquette Michigan (store CL671). I don't know why I remember stuff like that. I worked there during my college years as I worked on my CS degree. A lifelong friend of mine and I were allowed to develop and operate a dialup BBS. Great experience that paid dividends later in my career. It was a good store managed by a friend of ours. Eventually I got my degree and had to move. The store lasted a few more years, but eventually closed due to competition from early big box stores.
I remember thinking how amazingly fast these computers were compared to a BBC Micro B+ 64k (UK machine) WOW! ... Think time was measured differently in the 80s and 90s 😂
That drive spooling up and seeking sure brings back some memories. Before SSDs became affordable gamers were bitching that hard drives were SO NOISY, that seek chatter was just TOO much. I guess a drive like that would have forced them to jump out the nearest 10th floor window to escape it.
I remember for a brief transitional period remarking to myself that I didn't think the computer was working because my new HDD was so quiet. Our 5170 filled the room with whirr.
I had no idea that my headphones could make that high pitched whining noise the machine was making after it crashed. It was like the noises old security systems used, it was so high.
I wonder if it was CRT whine. If it was I apologize.. I did try to use a filter to kill it (after a certain age you can't hear it anymore.. I have to rely on a spectrometer). Might be what it is..
ComputerLand! That Computer is Awesome!, I Would love to find my First, 80286 Packard Bell Similar to this one, but I believe it had 2 5.25" Bays and the 3.5" Floppy was Vertical towards the Middle.
Yep. I was skeptical myself but then saw old newspaper ads showing both machines available. I don't remember where but I read somewhere there may even have been a 386 card.. maybe not specifically for BC machines but made by same company. Never found it though.
unfortunately I'm pretty sure that CRT has a loose shadomask, I had the same thing happen years ago when I dropped a 14" portable TV. hopefully your repairman can find a good replacement CRT, one from a junked TV set providing it will physically fit the case should be able to be made to work.
Another interesting show. I’m amazed that beige box is in such good condition. Too bad about the monitor. Is it covered by the Computerland extended warranty?
On the CRT dark area, it might be helpful if you can show how it changes with the light tapping you mention. Tapping on the face of the CRT, tapping on the monitor case in different areas.
It seems to be if you tap around thr top back side of the crt bezel, that's when you get the most improvement. I've even gotten it to go away completely after operating a while and tapping strategically. However tapping can also make the dark spot larger.
@@TechTimeTraveller maybe one of the correction magnets has come adrift, whip off the lid and had a looksee. something that moved when you give the top a whack, or just tweak them all to see if there are any that are loose and move easily.
@paulstubbs7678 I went looking inside previously as someone mentioned magnets.. but I'm not sure I knew what to look for as I didn't know what they look like or where they attach.
Too bad the mainstream human is too ignorant to upgrade. Still same today. You could swap the FPU for the military version (M80287 or MD80287) which is specified for up to 125 degrees C instead of the usual 70 degress. I have just seen an MD80287-8 for sale on ali (15,99€). You might also use some thermal glue to put a flat passive heatsink on and you'll be safe for sure. 15:53 Because of stability and heat
Is the faulty monitor colour or monochrome? A shadowmask problem causes way more issues than that, colour purity would be way off and severe convergence errors.
I know this video is a month Or more old, but! the black spot that moves is to de... I forgot the name of it. a button on later screens you just pressed a button on the front. The circuit in that area probably failed. maybe a capacitor or .... I have been there with this issue, and mot to all of them quite in a few weeks to months!
Ha! Very entertaining video. That was really cool you were able to get that Miniscribe back up and going... I've got to acquire an old hard drive with a stepper motor in it one of these days, in me ever-growing collection LOL. Thanks for sharing!
Could just be the aperture grill causing that dark spot. Either that or the electron beam getting distorted on it's way there. New flyback and caps. Always recommended.
Reiserfs... I was rather happy when the company I worked for at the time finally decided to move away from it. Didn't spend that much time maintaining machines using it, but it is the filesystem which wasted more of my time due to corruption and dataloss issues than any other fs (it does help I never used FAT variations for anything serious...).
why do i find the patreon tier names SO frustrating?? capacitors (and resistors and some other components) follow the E series of preferred numbers, as described in IEC 60063. If i check DigiKey right now, of the 858,480 SKUs of ceramic capacitors they list, exactly 2 of them are 5uF, and they're both very expensive, highly specialized parts. If I search for 4.7uF, I get 3,481 SKUs. This is because 4.7 is in the E3 series of preferred numbers, while 5 is not present in literally any of them (the closest you'll find is 4.99, which only shows up in the E96 series). Your channel is mainly about computers, but there's no reason an engineer would EVER include a 5uF capacitor in a computer, because the only thing digital logic has any use for uF range capacitors is as decoupling capacitors. those can be important, but also will almost never care about the exact value.
@@GeneralKenobiSIYE yeah youtube has been weird lately. They told me my last video was performing poorly after less than 1 minute and totally refused to give it the usual impressions. And I'm missing stuff from other creators I follow.
20:45 Lizards don't wear shoes. Pass it on.
Lizards don't swear hues. Pass it on
Sounds like your 80287 has failed short ;3 might want to swap out that chip. Protip: any chip that gets burning hot to the touch in general use is a dead chip, it's failed short, and it's bad and you need to swap it out.
Also, on another note. I really like the idea of a backplane-based PC that you can upgrade just by swapping out cards like that. A similarly more modular approach to _modern_ computing, in a similar vein, would be a welcome thing IMO to a lot of people -- something where you have various modules that you can swap in or out to upgrade/etc memory, CPU, I/O, graphics, etc.
If you spent the '80s east of the Mississippi, you've never even heard of Computerland. Thanks for not being so California - centric that you failed to explain.
2:05 Future proofing is a proven myth so why do kids these days attempt it? Maybe because they don't remember before AM4 and don't realize that AM4 was the exception that proves the rule. Monitor defect looks like what happens when you stick a magnet next to the CRT.... at least until it totally spazzed out.
Maybe you could just replace the coprocessor. Shouldn't be that hot and probably has an internal flaw. If this is the case, your FPU benchmark is invalid even if it apparently working when it doesn't get too hot.
It's a nice flash back to look at the 'upgraded' version of Computerland XT.. I was lucky my parents (mom mostly she was a payroll clerk for Burlington Coat Factory at the home office in Burlington, NJ) anyway, she needed a PC she could use at home for whatever reason, I never ever remember seeing her use it, but they bought a Goldstar XT complete setup, CGA monitor, XT IBM Clone, 2 5 1/4 drives NO HDD though, yuck, it did have 640k ram so that was nice. I upgraded it the best I could for a 10 year old, was lucky and got a cheap Trident VGA card (super I think) and a 2400 baud modem to add to it.. I'm pretty sure it was 87 when they got that thing, I know we upgraded it very shortly thereafter, with the Vga monitor and graphics, maybe 2 years into having it.. man we had that PC until I built a 386 a few years later, finally had a hard drive, a whopping 100mb IDE drive though, I was the man back than! haha memories. Thanks for this one..
You're welcome! ;-) Definitely an interesting machine. As for the CRT fault, I've never seen anything like that before. Very odd! It moved around a bit when the video mode changed too.
This is a gem of a machine for $75. What a find.
It goes to show, with patience and a bit of luck, you can get deals on ebay from time to time!
@@TechTimeTraveller Did you dump the ROM by any chance?
15:50 the original IBM PC AT was 6mhz, I think later revisions stepped it up to 8. Maybe Computerland assumed some software would be coded specifically for that original clock.
Wow. I used to program the old DOS Paradox (Borland relational database system that would work over a network with multiple users). What a trip.
That hard drive sounded like it was going to launch into outer space. Ah, the memories.
Just opened the video and I am almost entirely certain that the hard disk drive in this machine is a Miniscribe MS-III, probably a 3425. It could be a Tandon TM-252, though.
3:02 Ion trap or centering magnets have come misaligned
4:19 Miniscribe MS-III
6:00 A company I buy most of my hard drives from, DreamHardware, rebuilds power supplies. Might be worth sending this one off?
8:40 missed a seek, needs oil in stepper shaft.
If you ever need help with one of those drives, get in touch. I collect and repair vintage hard disks, I have a community of other collectors, and I have a large number of spare drives.
10:26 3438! The RLL certified version, very nice.
12:46 Miniscribes have an exercise mode built into their firmware, it makes the drives do butterfly seeks repeatedly.
There is no ion trap, those disappeared in the 1950s when aluminized picture tubes appeared. There are no centering magnets on a color tube either, the magnetic rings that adjust static convergence can't make a shadow like that. Something is loose and causing a shadow, it could be a flake of the internal aquadag or possibly the getter or part of the electron gun. In 30 years of working on CRT displays I never saw a symptom quite like that though.
If the 287 is getting too hot, then It’s probably the wrong clock speed.
Yes I was reading- I think it is supposed to run at 6mhz? I haven't found any manual for the BC286 though and what to adjust with that if it is indeed running at wrong speed.
@@TechTimeTraveller From what I can remember, the 287 is synchronous with the 286 clock but needs to be "told" to run at a slower speed. Some boards had a jumper for this, but yours doesnt seem to have any jumpers at all so maybe a utility or bios setting? Bios battery is gone so maybe there is a bios setting that is by default wrong for it?(looking to put 287 in 2/3 clock mode) I went back thru your video and spotted that you do have a 287-8mhz so thats good. Cant think of anything else other than the 627xf chip above it getting hot. Have a good one.
6:37 How could this combo go wrong made me LOL.
The fix for the 287 overheat is to just outright go and replace it with an 80287XL, which is basically a 387 in the same package and 100% will function the same with the addition of being way faster than the 287 it's replacing... and CMOS to boot! I don't recall but I think the 287s of that time were NMIOS and ran pretty hot, but this was the same with the 286 itself. stick an adhesive heatsink to the top of the 286's metal cover there.
The BC88 video wasn't bad. It's part of the TTT universe.
I watch this and find myself torn between wanting to forget and wanting to remember.
whoa bricks can store stuff indeed!
Just found the channel, really dig how informative it is, giving a bit of history while walking through the actual tech too. Another video I liked was the account fraud miniscribe had, very amusing
I actually lived just outside Staatsburg, NY for a few years! It's a blink-and-you-miss-it town slightly off the main road, basically just a dot on a map, just north of Hyde Park and Poughkeepsie.
Only knew where it was because I grew up just south of Poughkeepsie. Never expected to hear it mentioned on a random youtube video, much less one related to tech
I'm in Mass. and the name was vaguely familiar. And the name fits in with the history of the area. I did a search and got a hit for 27 Carol Dr, Poughkeepsie, NY 12603. Someone's house. Also a company called A1CS in Brewster that is probably gone, but their web site is still up from 2017.
That EGA card has the dual composite to comply with the EGA standard. Nothing officially ever used the ports.
They are just wired up to the expansion connector at the top, you need an option board to make them do anything, trouble is I don't know if anyone actually released one. It was an future option offered by IBM so everyone copied it so they could say they were compatible.
I remember Computer land as a Kid. You put everything on credit. As for prices back then. I would have to double check but the prices seems about right. Except maybe the 286 loaded model. Then again hard drives was 569.00. Not sure why they added in a tape backup. Also includes the monitor. You have to be care full. When I started in computers in Mid 1991. Companies was still doing the old trick of naming the price without a monitor. If I ignore scandals. A good example is Radio Shack. Even they stopped selling computer due everybody was selling computers and at a lower price. I'm sure you are correct about paying a premium as we call it for the name.
Personally, I would install Coherent “Unix” for 286 or OS/2 Warp but that’s just me
I might do that.. on a separate IDE drive. I have a thing about trying to preserve original info/setup where possible.
I don't think it would run warp. That needs a 386dx. But you are on part with Coherent unix, muti user dos. etc etc.
Man that MiniScribe is quite...a brick joke, since your MiniScribe video essay.
I stumble on this channel and I am not disappointed :O
10:54 : Yes. Another Adrian's Basement fan here.
I used to work at ComputerLand from 85-87. Thanks for the memories
Nice! I'm curious what it was like working there. Was it a decent working environment?
@@TechTimeTraveller I was a service tech at a store in Marquette Michigan (store CL671). I don't know why I remember stuff like that.
I worked there during my college years as I worked on my CS degree. A lifelong friend of mine and I were allowed to develop and operate a dialup BBS. Great experience that paid dividends later in my career. It was a good store managed by a friend of ours. Eventually I got my degree and had to move. The store lasted a few more years, but eventually closed due to competition from early big box stores.
Great video, I do love a nice chunky beige monitor stand.
I remember thinking how amazingly fast these computers were compared to a BBC Micro B+ 64k (UK machine) WOW! ... Think time was measured differently in the 80s and 90s 😂
That drive spooling up and seeking sure brings back some memories. Before SSDs became affordable gamers were bitching that hard drives were SO NOISY, that seek chatter was just TOO much. I guess a drive like that would have forced them to jump out the nearest 10th floor window to escape it.
I remember for a brief transitional period remarking to myself that I didn't think the computer was working because my new HDD was so quiet. Our 5170 filled the room with whirr.
I remember the in-house peripherals brand name for ComputerLand was SYSDYNE! "For those who demand the best!"
I have a Zenith Z-161 luggable running Zenith's OEM version of MS-DOS 3.30. By default it installs to C:\BIN.
I had no idea that my headphones could make that high pitched whining noise the machine was making after it crashed.
It was like the noises old security systems used, it was so high.
I wonder if it was CRT whine. If it was I apologize.. I did try to use a filter to kill it (after a certain age you can't hear it anymore.. I have to rely on a spectrometer). Might be what it is..
ComputerLand!
That Computer is Awesome!, I Would love to find my First, 80286 Packard Bell Similar to this one, but I believe it had 2 5.25" Bays and the 3.5" Floppy was Vertical towards the Middle.
Wow, this CPU card actually exists! The PC maker, Sambo(Trigem) sold 286s in Korea with totally different CPU card models.
Yep. I was skeptical myself but then saw old newspaper ads showing both machines available. I don't remember where but I read somewhere there may even have been a 386 card.. maybe not specifically for BC machines but made by same company. Never found it though.
I don't remember seeing a stepper motor in a hard drive. You've been in this game longer than me.
01:30 I'm a pretty visual person
19:33 I'm so used to Windows 10/11 systems
Only one of these statements can be true. Greetings from a Mac guy.
That stepper motor looks like something you could get from a 3D printer shop.
11:26: the metal noise sounds like the hard drive suddenly wanted to play bad to the bone 😭
Love your historical videos. So great
This video is larger than that hard drive... FYI - put tape over those exposed EPROMs. UV will bitrot them.
Great video, I like the David Frost esque intro
ed was electric desk a early program like lotus 1 2 3. we used it in tech school back in 1985
You could get some small heatsinks for the copro and upgrade/add internal fans.
Whenever I'm able to, I always swap in new and much better fans.
Milliard means Billion in french... this guy was destined to make fortunes!
See if BigClive can reverse engineer that little front PCB
unfortunately I'm pretty sure that CRT has a loose shadomask, I had the same thing happen years ago when I dropped a 14" portable TV. hopefully your repairman can find a good replacement CRT, one from a junked TV set providing it will physically fit the case should be able to be made to work.
Another interesting show. I’m amazed that beige box is in such good condition. Too bad about the monitor. Is it covered by the Computerland extended warranty?
Huh. The foundational items that began this entire industry.
i tought Megabricks From MegaBlocks
Funny that Adrian was the next in my playlist.
On the CRT dark area, it might be helpful if you can show how it changes with the light tapping you mention. Tapping on the face of the CRT, tapping on the monitor case in different areas.
It seems to be if you tap around thr top back side of the crt bezel, that's when you get the most improvement. I've even gotten it to go away completely after operating a while and tapping strategically. However tapping can also make the dark spot larger.
@@TechTimeTraveller maybe one of the correction magnets has come adrift, whip off the lid and had a looksee. something that moved when you give the top a whack, or just tweak them all to see if there are any that are loose and move easily.
@paulstubbs7678 I went looking inside previously as someone mentioned magnets.. but I'm not sure I knew what to look for as I didn't know what they look like or where they attach.
Love the flag ;)
That battery made a damn mess of that board, dog damn!
there's not much on that board, just a battery etc, so a replacement could be made using some protoboard
@@paulstubbs7678 Thankfully indeed!
13:06 Holy autoexec echoes, Batman!
0:01 remember art bell radio show
Too bad the mainstream human is too ignorant to upgrade. Still same today.
You could swap the FPU for the military version (M80287 or MD80287) which is specified for up to 125 degrees C instead of the usual 70 degress. I have just seen an MD80287-8 for sale on ali (15,99€). You might also use some thermal glue to put a flat passive heatsink on and you'll be safe for sure.
15:53 Because of stability and heat
Is the faulty monitor colour or monochrome? A shadowmask problem causes way more issues than that, colour purity would be way off and severe convergence errors.
It's color.
@@TechTimeTraveller Ok, as I say doubt shadowmask problem. Maybe the CRT internal getter has become detached.
Ok TH-cam another tech channel. Kinda curious but why you recommended it?
TH-cam: 11:51
Would it be possible for you to dump the ROM of that video card?
I know this video is a month Or more old, but! the black spot that moves is to de... I forgot the name of it. a button on later screens you just pressed a button on the front. The circuit in that area probably failed. maybe a capacitor or ....
I have been there with this issue, and mot to all of them quite in a few weeks to months!
I've operated industrial machines that were quieter than this PC.
And that was with the volume reduced by -15db. I have truly forgotten how loud the old ones were.
Ha! Very entertaining video. That was really cool you were able to get that Miniscribe back up and going... I've got to acquire an old hard drive with a stepper motor in it one of these days, in me ever-growing collection LOL. Thanks for sharing!
what in the blue blazes is up with that monitor? i've never seen anything like that.
So the BC88 has the same backplane as the BC286?
Yep. That was the whole plan - so you could easily upgrade the BC88 to a 286.
"MiniScribe brick" 😅😅😅
30MB hasrd drive, I've got more memory as 3rd level cache on my CPU nowadays (64MB)
It's pretty amazing to think what we survived on back then. Or what programmers could do with so much less space to work with.
Did you try a degausing wheel
tri-flow that stuff is great.
It's pretty amazing stuff. Drive is still working!
Could just be the aperture grill causing that dark spot. Either that or the electron beam getting distorted on it's way there.
New flyback and caps. Always recommended.
YOUR FAN HAS A SCREW STUCK TO IT!
'Member when an Apple ][e had better graphics than a PC...
hey, i think the issue with your monitor is the crt itself cracked somewhere and is not getting a vaccum, hence the blac spot\
That is not how CRTs or vacuums work. If that were the case the ENTIRE monitor would not work.
Installing a 9x9x5mm heat sink on the 287 will do the trick, you can use a double sided tape.
06:35 You should install Linux with Reiserfs to make it the holy trinity
Reiserfs... I was rather happy when the company I worked for at the time finally decided to move away from it. Didn't spend that much time maintaining machines using it, but it is the filesystem which wasted more of my time due to corruption and dataloss issues than any other fs (it does help I never used FAT variations for anything serious...).
Are you a Quebecker?
Was born there and my family came up there.. but anglophone.
@@TechTimeTraveller Nice! Fellow Quebecker in Montreal.
why do i find the patreon tier names SO frustrating?? capacitors (and resistors and some other components) follow the E series of preferred numbers, as described in IEC 60063. If i check DigiKey right now, of the 858,480 SKUs of ceramic capacitors they list, exactly 2 of them are 5uF, and they're both very expensive, highly specialized parts. If I search for 4.7uF, I get 3,481 SKUs. This is because 4.7 is in the E3 series of preferred numbers, while 5 is not present in literally any of them (the closest you'll find is 4.99, which only shows up in the E96 series). Your channel is mainly about computers, but there's no reason an engineer would EVER include a 5uF capacitor in a computer, because the only thing digital logic has any use for uF range capacitors is as decoupling capacitors. those can be important, but also will almost never care about the exact value.
This is BS! I never got a notification of any of these new videos.
@@GeneralKenobiSIYE yeah youtube has been weird lately. They told me my last video was performing poorly after less than 1 minute and totally refused to give it the usual impressions. And I'm missing stuff from other creators I follow.
@@TechTimeTraveller Ah well, at least this way I can have a bit of a binge of your content.
please backup the hdd content
Sounds like the math coprocessor is toast, so just remove it.
I'm so glad Trump invented the pc
:
So noisy!
oh god, the patreon bar at the bottom is so distracting
Why do so many people call it BIAS instead of what it is, BIOS?
Short O versus long O
Sounded ok to me, just a touch of accent.