Home Artists Posts Import Register

Content

Hello my patrons! I'm still hard at work trying to catch up on my video queue. Without a buffer of complete videos, I really feel the crunch .... and I'm still behind. At least you all get to see this video four days before it comes out on the main channel! (So we're improving, little by little!)

This was a fun one to make as I love this odd-ball and neat 286 motherboard. (Yep, it's the one you saw in that recent second channel video.) 8mb of RAM right on a 286 board from 1990?? That's certainly a rarity and unusual. AFAIK this was normally something reserved for pretty high-end machines, but here this board has it, plus some other awesome and cool features.

So in this video I explore this board in-depth, give the board some quality of life improvements and make it so I can overclock it right to the limit.

It's not the fastest board around, but it's still a pretty nifty one, and I love it!

Direct link: https://youtu.be/89zPvQF3tas

Files

I improved this awesome 80286 motherboard

-- Links Adrian's Digital Basement Merch store: https://my-store-c82bd2-2.creator-spring.com/ Adrian's Digital Basement ][ (Second Channel) https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g Support the channel on Patreon: https://www.patreon.com/adriansdigitalbasement My GitHub repository: https://github.com/misterblack1?tab=repositories -- Tools Deoxit D5: https://amzn.to/2VvOKy1 http://store.caig.com/s.nl/it.A/id.1602/.f O-Ring Pick Set: (I use these to lift chips off boards) https://amzn.to/3a9x54J Elenco Electronics LP-560 Logic Probe: https://amzn.to/2VrT5lW Hakko FR301 Desoldering Iron: https://amzn.to/2ye6xC0 Rigol DS1054Z Four Channel Oscilloscope: https://www.rigolna.com/products/digital-oscilloscopes/1000z/ Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier: https://amzn.to/3adRbuy TL866II Plus Chip Tester and EPROM programmer: (The MiniPro) https://amzn.to/2wG4tlP https://www.aliexpress.com/item/33000308958.html TS100 Soldering Iron: https://amzn.to/2K36dJ5 https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853 EEVBlog 121GW Multimeter: https://www.eevblog.com/product/121gw/ DSLogic Basic Logic Analyzer: https://amzn.to/2RDSDQw https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672 Magnetic Screw Holder: https://amzn.to/3b8LOhG https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html Universal ZIP sockets: (clones, used on my ZIF-64 test machine) https://www.ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971 RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI) http://www.retrotink.com/ Plato (Clone) Side Cutters: (order five) https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184 Heat Sinks: https://www.aliexpress.com/item/32537183709.html Little squeezy bottles: (available elsewhere too) https://amzn.to/3b8LOOI --- Instructional videos My video on damage-free chip removal: https://www.youtube.com/watch?v=XQVjwPsVFd8 --- Music Intro music and other tracks by: Nathan Divino @itsnathandivino

Comments

Dirk Crossi

with the right eqipment i think its much easyer to make Sims to sipps ,..then installing sim Sockets ......only thing is ,to get the right pins in the shop ...(using old pins from broken ic's ....is a not optimal) ;) ...

André Scheffler

We had a 386 with SIPP memory sockets that originally came with 2MB of RAM, but when we tried to upgrade it to 4 MB we actually fried the MB because we missaligned one of the additional memory modules by 1 PIN. What a horrible design! 😓

Andreas Fredriksson

If it’s feasible at all to make this take 16 MB (I don’t know how) it would be amazing. Often you look at those “technically maybe will work” configurations that were so moonshot out of range back in the day and wonder if this chipset was actually ever used with 16 MB on the mobo

Andreas Fredriksson

Could you bodge in the missing address line decoding and then use all the lines to generate another line for 4MB simms to work? That would be so much fun.

Gregg Stefancik

Great video. For the SIP socket removal, I think you would find low melt solder a great help. It dramatically reduces the risk of board damage. Parts just fall out. Lots of videos on YouTube about its use. You can buy from Amazon, DigiKey, etc. it is labeled for use with surfacemount, but don’t let that fool you it works great with through hole components.