Uploaded November 2025 | Updated September 2026, 2 weeks ago
@DavesVintageApplTech gifted the channel a Chips & Technology 286 motherboard. One that was given by Chips to an employee to celebrate the release of the motherboard, if I have the story correct. It is new old stock (NOS), and at first glance it looks new, except for the missing NiCad battery.
About that battery: it leaked. And while it seems to have spared the top side of the motherboard, there were four little broken traces (Ah! Ah! Ah! *Thunderclap*) on the bottom of the board (plus two on the top side, but they were only serving to allow some of those broken traces to avoid others, so I forgot about them in my original count... sorry).
If I'm going to build an era-appropriate computer in what I believe used to be an AT clone computer (before getting re-painted and made into a 486 for me to buy at VCF East 2023 consignment), I need to get busy checking for additional damage and then testing the motherboard.
Did I successfully repair the four little broken traces? Will I find additional damage? Will the board throw a temper tantalum? You'll have to watch to find out!
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... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
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@DavesVintageApplTech gifted the channel a Chips & Technology 286 motherboard. One that was given by Chips to an employee to celebrate the release of the motherboard, if I have the story correct. It is new old stock (NOS), and at first glance it looks new, except for the missing NiCad battery.
About that battery: it leaked. And while it seems to have spared the top side of the motherboard, there were four little broken traces (Ah! Ah! Ah! *Thunderclap*) on the bottom of the board (plus two on the top side, but they were only serving to allow some of those broken traces to avoid others, so I forgot about them in my original count... sorry).
If I'm going to build an era-appropriate computer in what I believe used to be an AT clone computer (before getting re-painted and made into a 486 for me to buy at VCF East 2023 consignment), I need to get busy checking for additional damage and then testing the motherboard.
Did I successfully repair the four little broken traces? Will I find additional damage? Will the board throw a temper tantalum? You'll have to watch to find out!
*
Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: ko-fi.com/jdmcs
🈷️ Support me on Patreon: patreon.com/jdmcs
📦 Amazon Wishlist: jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
Follow me on Instagram: jdmcs.net/myinstagram
Follow me on Twitter: jdmcs.net/mytwitter
![COMPUTER Repair: The Saturn 128K Card Clone Has Bad RAM... Lets Fix It! (Computerized Start™ Live)
I was going to look at a different project tonight, but that was before I started looking at the Saturn Card clone on Daves stream yesterday.
Let me back up: I am nearing completion of my restoration of COMPUTER, the name I have given to my Apple ][+ clone made by MCA of Japan... that is, if the silk screen on the motherboard can be trusted. And Im going for a restoration here, with exceptions made for adding a Super Serial card and any expansion cards needed to make the ones that were included work.
And the Saturn 128K RAM card was a 128K RAM expansion board for the Apple II series of computers from Saturn Systems. It features 128K of RAM, and, when installed in Slot 0, can take the place of the Language Card for loading Integer Basic. It also features its own DRAM refresh circuit, so a connection to the RAM chips on the motherboard is not needed.
COMPUTER included a clone of the Saturn 128K RAM card, with MCA branding, so I really want to get it up-and running... despite having a clone from Garretts Workshop that is more power efficient. During Daves stream, I found that the card has a bad 74LS02 chip, as well as at least 4 bad DRAM chips.
I guess we better get bust Retro Chip Tester MemTesting to potentially complete this restoration tonight!
Will I find at least half of the DRAM chips to be bad? Do I have enough 4164s to replace any bad DRAM chips I find? And will the memory card pass MECC Computer Inspector after replacing the bad chips? Youll have to watch to find out!
*
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📦 Amazon Wishlist: https://jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: https://jdmcs.net/myblog
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![The Apple ][ Plus Clone: The Desolation of Sockets... as I Attempt Repair (Computerized Start™ Live)
Ive launched a merch shop: https://shop.jdmcs.com - use code JUSTINTIME for 5% off all Computerized Start™ merchandise through at least June 30th!
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I bought an Apple IIe Clone Motherboard on eBay (the place where I buy the things I later regret™) knowing full well it was an Apple ][ Plus clone motherboard and missing some chips. Yes, COMPUTER was jealous at first, but then COMPUTER realized I needed practice on a similar motherboard before I continue removing sockets, so were good...
Last time I worked on this board, I replaced enough capacitors to satisfy my concern that there wasnt enough capacitance on the board for proper operation. I was able to confirm the original 6502 was working by swapping it into my Apple ][ Plus. I also removed a few sockets that looked like they had too much solder. Still, the board powers up to garbage. I resigned to ponder the schematic.
Tonight, I am going to replace the rest of the capacitors, then I will commence The Desolation of Sockets. I have identified a few components that could prevent the CPU from running code, and I will be removing sockets for those components if they look questionable underneath. Well go from there.
Will I find issues under sockets? Will I get the board to do something by the end of the stream? Youll have to watch to find out!
*
Ways to Support the Channel:
☕️ Tips or Support via Ko-fi: https://ko-fi.com/jdmcs
🈷️ Support me on Patreon: https://www.patreon.com/jdmcs
📦 Amazon Wishlist: https://jdmcs.net/wishlist
... or simply do the YouTube things: Like/Dislike, Comment, Subscribe, Enable Notifications, and participate in the Chat. These things help the channel, too!
**
Read Computerized Start™, my Official Blog: https://jdmcs.net/myblog
Follow me on Instagram: https://jdmcs.net/myinstagram
Follow me on Twitter: https://jdmcs.net/mytwitter The Apple ][ Plus Clone: The Desolation of Sockets... as I Attempt Repair (Computerized Start™ Live)](https://i.ytimg.com/vi/BkyfY4LIXzg/mqdefault.jpg)




