If you want to buy this board as well you can get it on ebay. The seller comes from Italy and his ebay name is: CARCOSTA6110 Right now he has no mobo on ebay listed but you can ask for one. www.ebay.com/usr/carcosta1610

Please make more videos.

Where you been. Totally miss seeing your new content

please come back again

Hope you decide to return and produce more content. I've been catching up on your backlog of videos and have had such a wonderful time. It's become a daily ritual to watch one of your videos during lunch. :)

Awesome! That BIOS was clearly for 386SX as well due to the caching options. A 286 can’t do any of that caching stuff. (Chipset will certainly support both types of chips) Try turning up the bus speed from Low and you’ll certainly get even better video speed as well. I would swap the crystal for a 50mhz part and try for 25mhz! (Or even faster)

Haven't heard from you in a while. I hope all is well.

I also love sniffing the old stuff - like electronics and books :D

I honestly have basically zero interest in vintage computers (despite working in engineering), but the love and attention to detail with which you've made this video made me watch it in full haha. You're very good at your craft including videography and your passion really shines. Thank you!

That's the most advanced 286 motherboard I've ever seen.. and 20mhz for a 286 is fast.. sure beats my 12mhz 286 I had from the early 90s.. I always loved the 286,it was the first PC that could really run exciting games and software, especially with VGA like windows 3.1 and Wolfenstein 3D

It seems like almost all of the 20 and 25 MHz 286s ended up in Europe. You hardly ever see them in North America. I think because we were quicker to adopt Windows 3.x, which really needs at least a 386 to run well.

Thank you so much for this journey back in time. While my first PC was a clone of an XT , it wasn't really until we upgraded to a 286-20 (with EGA monitor) that I really was old enough to use a PC on my own. The 286 quickly found it's way into my room, instead of being placed under our staircase. I was only 7-8 years old at the time, so this was back in '91 / '92 , when I was in 1st and 2nd grade. I would come home from school and immedaitely after doing my homework, I'd be sitting in front of the machine and playing games (and learning BASIC also). I really hope some day, to find an EGA monitor in working condition, so I can then begin to buy and "re-build" my childhood 286.

Has been awhile. Don't feel obligated to post new videos but I am just checking in if you're doing allright. Miss your content.

Great! I have board with Harris 286 25Mhz :) I hasn't powered it up since couple years, but I remenber it is really fast for 286, even faster than 386SX/16.

You bring back all my good old memories of the benchmark software and games I use to use the day , we def lost that feeling of computing we used in the day

Würde mich sehr über neue Videos freuen. Hoffe es ist alles ok, denn du machst das super. Liebe Grüße aus Erfurt in Thüringen.

Battery not leaking is because it was never charged other than the residual charge and the tint boost during the 5 minute factory testing. so it never built up pressure inside from recombination. Only the slow degradation of the seals with time that let the KOH electrolyte out.

WOW, In perfect sealed condition!

When I was rebuilding my Fujitsu Lifebook T4220 core 2 duo convertible laptop from 2008, it's nickel metal hydride standby battery was leaking and the shrink wrapper was crunchy, luckily caught it in time and replaced it before the corrosion could spread but metal hydride batteries can leak after awhile too. That laptop is now really fast (T9500 CPU, 4GB RAM soon to be 8 if I can find the 4GB PC6400 SODIMM's for a good price, 1TB MX500 SSD!) it runs Windows 10 really well, booting in about 20 seconds and lots of games run great too (moto racer 15th anniversary runs and looks awesome and so does outrun 2006).

We're missing your videos, come back!

Looks like a nice industrial board. A lot of businesses didn't need top tier stuff, so board manufacturers were happy to sell older but more mature tech to those that need it.

It it’s such a nice time watching your videos. Your enthusiasm and genuine pleasure at what you are talking about really brings a smile to my face

Ahh......1992......the year I began to get interested in PC games, unfortunately I didn't have a computer at home, at couldn't afford one since I was in junior high, besides I still didn't know much about computer hardware back then.......

Mmmmhhh...what a beast! Considering your latest achievements, I already can see it overclocked to 40 MHz, then to 80 with liquid nitrogen cooling. :) Anyway, thank you sir for your great content!

My 1989 self would have lusted after this setup, my god.

You got bloody lucky with that battery. Good vid.

Very exciting video indeed! The condition was pristine and it was a delight seeing it in action. Thank you!

You should have a look at the "bus speed selection" in the bios. It could be that the ISA bus runs at 8.33Mhz now, when set to low. You can use a scope to check if it does anything to the frequency of the ISA bus. Or that it is some kind of wait state between the bus and the chipset.

Nice bios. Has many 486 features

Nice. There was some 25mhz 286's back in the day. They were absolute screamers for the time. I still love mine which runs DOS and Xenix.

Amazing video of something you're obivously very passionate about. I'm glad to know you got to use a brand new 286 motherboard, that's pretty fantastic. Love the close up shots, so clean, you make it seem really easy, buddy! And that motherboard CPU and co-CPU combo seem pretty special, even without any L2 cache it's still really fast. Fantastic, also thanks for showing your childhood games haha, cheers my friend.

We miss you!

I was so distracted by this loose IDE cable on the controller side 😀. Great mobo and great that battery didn't do its destructive job!

Oh yes. That's some mind bending 286 system. I would certainly like to see overclocking results.

Hoping to see some new videos soon - hope all is well!

This 286 board was lucky, that battery didn't leak.. It's fast, indeed. Great rescue! 👍 Looks like this board has cache update option too.

Almost brings a tear to the eye seeing this hardware! My second PC was a 286.. Not as powerful as this beast. But beautiful memories of DOS and DOS gaming. Winter games was a favourite of mine too. Adding a Sound Blaster card. That I installed myself. Anyway very well done on this video!

Harris made the 80286 as fast as 25mhz. AMD up to 16mhz, and Intel to 12.5mhz. But note that the Harris version was a CMOS part, which might not work on all motherboards. Look for a copy of Mark Williams Coherent OS, this was a UNIX like operating system for the 80286. You should be able to compile many Linux programs for it from source.

Please come back and make more videos!!!

The original Pentium was released in 1993. But yeah, '92 is pretty late for a 286 mobo.

Lovely work Peter!!!

That was a lovely journey and well presented. Thanks for sharing!

This was awesome. A new 286 at 20Mhz was awesome. Let all be honest we all would have done the same thing when Peter smelled the New MB. Car people enjoy that new car smell and we here love that New Motherboard smell. So glad that battery held out and no corrosion, it was was just meant to be. Great video.

Watching you install that FPU was so satisfying 😅

Kolejna fantastyczna produkcja. Dziękuje 😀

i just got my first 386 - a 386SX40 with an unknown board, a 180MB HDD and a Oak VGA Card. came with 4MB RAM but found a 16MB kit on ebay and installed a soundblaster Vibra 16, a 32GB SD Card using EZ DRIVE and a Gotek USB Floppy Drive. i am Currently using it to listen to music with FastTracker2. i even got 2 Original Cherry AT Keyboard together with it.

A very nice motherboard indeed. The Headland chipset seems quite sophisticated, too, at least compared with older 286 platforms. It almost makes you wonder just how many chipsets were available for the 286, as it seems to have had a much wider variety than the 386 and 486 did. In any case, it sure is a fine example of integration improving over time, from the original full size 5170 boards that were still mostly comprised of glue logic to these tiny late boards that are almost a single chip. Good luck with the overclocking. I actually have a similar board, from about the same time, albeit only 16MHz, with integrated I/O and onboard VGA. Maybe it should get a video some day.

About the batteries, I heard that people like LGR, they just use some kits to replace them for the modern ones, just for safety. But I am a noob, just enjoying retro stuff videos. Of course for pure retro, you need everything original, but I like how they use new battery mods, new flash card mods instead of low capacity drives.

I'd say 'outstanding, as usual', but actually your videos keep getting better and better! Please tell us about the contents of the floppy, and maybe share it with us (I suspect there's an EMS driver for the HT12 chipset, but could be a previously unknown version or something more exotic). Cheers!

I dont know why but I really want to hear you do the Arnold - "get to the choppa" voice. Rofl.

That is an awesome board and I'm very pleased you were able to save it from impending battery leakage! Your demo of Wolf3D brought me back to the days when I first played it on a friend's 386SX 16mhz back in the day. It wasn't too long after that when I got my 486DX2 66mhz based PC which ran Doom beautifully. That 486 PC also had an onboard Headland Technologies video card in it. I'm pretty sure that company was sold or went out of business sometime around 1993.

I got an early 386 motherboard not as advanced as this 286! I would love to have a custom IDE entry and 30 pin simms! This video, and your other videos, are a treat and a delight. Thank you for sharing!

As always thumbs up, Peter! A very nice mainboard, I'm also keen to get my hands on a Harris 20 or better 25, but they are rare meanwhile. Interesting point with the NiMH batteries. I never noticed that, but I just looked through my pictures and I found some boards, which had a leaky NiMH batteries, but they all never got to damage the PCB. The NiCd batteries on the other hand always ended in a huge mess... Very interesting observation :)

I love this channel! Amo este canal!

Fantastic as always =D

At least I can see not only me like to smell old electronics, impressive smell right ? Just like old library

nice to see a 386-486 bios menu in a 286 board

Really love your videos sir i hope everything is ok over there and i keep hoping you make more videos big hug from a Brazilian friend.

Beautiful!

Thank you.. great video

May the Fourth Be with you Motherboard.

Nice board, i'm glad it was in seal and that was a great unboxing video! i wonder what the voltages are on those barrel batteries lol.

Loved this video!

In 1992 our sole house computer was an IBM 286 running at 12 MHz. What you've built here is indeed a rocket, especially compared to that machine. Ours had PC-DOS running in ROM, so it started instantly and "felt" fast, but it would never have made those benchmark numbers. 👍

Congratulations!! .. always interesting content, i always learn with you! Did you use 80mAh in your NiMH battery? does not affect higher mAh?

Wow, what a gorgeous beast! I've always loved these insanely fast 286; I've heard that they give equivalent 386SXes a run for their money and outperform them a bit. Thank you for the info on the NiMH batteries! I love the combo here of using the 287XL and this Harris 286. I've always loved those Harris chips; my uncle worked at Harris while they produced these and I am not sure, but I heavily suspect he was involved in the packaging designs for them. Anyway, what a wonderful board and what amazing information--thank you for sharing this Peter!

thanks for my weekly dose of pc nostalgia, peter! 😊 that thing is getting amazingly close to my 386sx/33. you could probably even run (note that i didn't say play 😄) doom on very low settings on that thing if you add another 2mb of ram, just like i did with my 386 back in the day.

Other games I remember playing in my 25Mhz 286 (almost the same board) were Dune 2 and X-Wing, both pushing the limits of that 286 and of course Fate of Atlantis and Monkey Island 1 & 2 Tolles video

Nothing new on YT or Twitter for 2 month. I'm a little worried at this point. Hope Peter is okay and healthy.

Intersil also made 80286 CPUs at 20 and 25MHz, not only Harris.

You just saved that motherboard from corrosive hell. It was meant to be! Great work!

Great find!

Wow! Such a nice board and its brand new!!! IF you can get one of those 287 Military FPUs to upgrade it!

We miss your videos.

Your board is best known as the Lucky Star CM-286GHS

That thing is a rocket! I bet that would give most 386SX's a run for their money.

Hi, Ich sehe immer gerne deine Videos. Irre an was du für Sachen kommst. Grüße von Wien nach Kärnten. LG Boris

Nice review ! there is an empty XTAL socket close to the FPU. I guess the FPU runs by default at the CPU clock speed, and by using a second XTAL (and most likely a jumper) it may be possible to run the FPU asynchronously. That may be useful if you plan to run at 25 or 30, not a lot of 287s can support those frequencies.

My first PC was a 286, and it was possibly a 20MHz, because it went head to head with a friend's 386... or maybe an extra fast 16MHz with an FPU. Maybe my friend didn't have an FPU. Back then didn't understand internals and don't remember exactly what specs I had. To me a computer was voodoo magic in a box. That hard drive sounds very scratchy. I had a 200MB drive - that I remember and it was more quiet than that. The speed of a dual speed CD-ROM off an HD though. That's retro! Back when you launched program and went to make coffee and it still wouldn't be done loading in time for your return. Hehe. And I just had to edit my comment, because I said 55.3 in 3Dbench couldn't be right and it felt more like a 5. Then I saw the end and realized you got 7 in the retest. That's close enough. 55 would be a fast 486 with VLB video. No way to get that score on a 286.

Ersa the best!

That copro is pretty!

Very rare find and great video! Is the keyboard connector actually gold plated or is it just painted gold coloured?

Unique content

separate crystal for the isa bus should make overclocking easier on this board

It seems that Golden Power (if GP means that) NiCD batteries were actually very reliable, I've Golden Power Sub-C size NiCD battery packs from 1998 still performing like new in emergency lights, so far only some D size Saft battery packs from the mid 80s outlasted those, all others brands failed between 5 and 15 years.

Back in the golden days of 286/386 ISA only, everyone used the video card in the bottom slot. I have no idea why it was so, but that was the standard slot to use.

They were probably still being used for industrial equipment etc. Most home users wouldn't be interested in 1992.

Another amazing find! I wonder how it compares to a slower 386 like the 16 or 20MHz versions.

WOW! You're lucky! My old 286 runs at 8mhz.

My very first PC was Headland HT-12 motherboard with 12 MHz 286 CPU, I still have the motherboard manual somewhere. I was very little back then, but I do remember I was given choice and I chose color monitor and smaller HDD (40MB) instead of some amber or green monitor with larger HDD.

Are you all right?

You should have used vinegar before alcohol, to neutralize the battery leakage, if some of that base survived in the vias and such, it can still spread into the traces. Very small chance of course, but just to be sure, I'd use vinegar before final cleanup with isopropanol.

Such a nice board! Those unpopulated sockets... are for cache memory? I was half-expecting that you would put some cache there, and show us the speed improvements. This is, of course, assuming those are actually for cache memory (mmm, maybe they are RAM sockets instead?).

great video. how did you capture that VGA video. quality is so good.

Nickel metal hydride batteries can leak and corrode as well, i see a lot of battery damage from them in mid 90s Toshiba laptops. Green corrosion wicks along the wires.

An overlocking video would be nice! 👍

SOUNDBLASTER PRO2 is a good choice i have one in my 386. But my 286 has a SB16 CT2940 pnp so i can use the IDE-INTERFACE for the 4xspeed CD Drive. ^^

Now that's funny as hell. Eversource in the US Eastern seaboard is a power company!!!!

Finally I could make that mainboard run at 25MHz, by changing the main crystal to a 50 MHz version. But to be honest, it is not 100% stable configured in 0WS (even with the excellent 60 nm Topless memory). In 1WS it is stable, butnot much faster than @20MHz/0WS. I don't know if using a real Harris 25 would improve stability ... So anyway a very good mainboard, I'm glad to have bought it after your test !

Hey man, hope you're well