Uploaded May 2026 | Updated September 2026, 1 week ago
I thought I was 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 I'm 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.
Tuesday, I had less trouble with COMPUTER, almost as if the problem had fixed itself... but more likely, because I've did something. Was I making some mistake last Thursday that no one caught? Was some chip I replaced the actual cause (and we ran out of time to confirm a fix)? That would require more research.
Anyways, one thing we were able to confirm Tuesday is that the Saturn 128K clone card still appears to have a fault. And when I tried to put the card in my Apple //e, that computer also had issues. Maybe we confirmed two things.
In order to fix COMPUTER completely, I need to be able to run RAMWerks, which requires 64K of memory to run AND only supports one Saturn Card at a time (so no using my Garrett's Workshop clone in Slot 0 to bring COMPUTER up to 64K and then testing the clone card in another slot). Since I don't have a spare Language Card, my best bet is fixing my Apple //e so I can be fixing my COMPUTER.
Will I be able to fix the Apple //e's Disk II Interface Card? Will I find more bad 4164's? Will I find more bad logic chips? You'll have to watch to find out!
*
And yes, I might need to workshop the name for my "It's Complicated" //e... that's the name I thought of for my Apple //e that someone installed into an Apple ][ case, and then installed several nice upgrades (one of which barely fits) to extend the life of their Apple ][ or Apple //e. Yeah, it's kinda disappointing that someone modified a low serial number Apple ][ case to fit an Apple //e keyboard - at least it has vents, so it's not one of the ultra-rare original Apple ][ cases - but the mod was so well done that I have decided to leave this Apple //e as-is. Hey, "It's Complicated"!
*
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I thought I was 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 I'm 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.
Tuesday, I had less trouble with COMPUTER, almost as if the problem had fixed itself... but more likely, because I've did something. Was I making some mistake last Thursday that no one caught? Was some chip I replaced the actual cause (and we ran out of time to confirm a fix)? That would require more research.
Anyways, one thing we were able to confirm Tuesday is that the Saturn 128K clone card still appears to have a fault. And when I tried to put the card in my Apple //e, that computer also had issues. Maybe we confirmed two things.
In order to fix COMPUTER completely, I need to be able to run RAMWerks, which requires 64K of memory to run AND only supports one Saturn Card at a time (so no using my Garrett's Workshop clone in Slot 0 to bring COMPUTER up to 64K and then testing the clone card in another slot). Since I don't have a spare Language Card, my best bet is fixing my Apple //e so I can be fixing my COMPUTER.
Will I be able to fix the Apple //e's Disk II Interface Card? Will I find more bad 4164's? Will I find more bad logic chips? You'll have to watch to find out!
*
And yes, I might need to workshop the name for my "It's Complicated" //e... that's the name I thought of for my Apple //e that someone installed into an Apple ][ case, and then installed several nice upgrades (one of which barely fits) to extend the life of their Apple ][ or Apple //e. Yeah, it's kinda disappointing that someone modified a low serial number Apple ][ case to fit an Apple //e keyboard - at least it has vents, so it's not one of the ultra-rare original Apple ][ cases - but the mod was so well done that I have decided to leave this Apple //e as-is. Hey, "It's Complicated"!
*
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☕️ Tips or Support via Ko-fi: ko-fi.com/jdmcs
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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!
**
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![COMPUTER Repair: My MCA Apple ][+ Clone Needs a Power Supply & 3 Sockets! (Computerized Start™ Live)
Back in September, I got COMPUTER, my Apple ][+ clone from MCA of Japan, powering up to the BASIC prompt. To do so, however, I had to disconnect the keyboard and use another Apples power supply. I think I have what I need to solve both problems.
The power supply was easy: just buy another power supply on eBay (the place where I buy the things I later regret™). I have a cap kit on-hand, thanks to the magic of buying the wrong kit for another project, so well go ahead and recap it.
The keyboard might be even easier: I should have used sockets without a lip for the three sockets that have cables installed into them: the keyboard, the joystick/paddle port, and the memory chip at E3. I purchased some sockets that should fit the cables that go into these sockets, allowing the cables to make and maintain good contact.
Will I get the power supply re-capped without drama? Will I swap the correct three sockets? Will COMPUTER still boot? Youll have to watch to find out!
*
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![Its COMPUTER Week: More Sockets, More Mooing for My MCA Apple ][+ Clone (Computerized Start™ Live)
This description will be updated after Tuesdays stream...
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**
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![Macintosh SE/30: Blast from the Past [WordPerfect] Processing? (Computerized Start™ Live)
I found an SE/30 on eBay (the place where I buy the things I later regret™) that looked like a good candidate: it was auction format, the auction end time was during the day, and most importantly, there was no rust visible on the I/O ports. $208 total later (gotta pay shipping and tax), and this SE/30 has landed in the basement.
Last time we looked at this SE/30, we completed the recap and cleaned the floppy drive. Tonight, were going to test everything. And if it works, well launch the original install of WordPerfect to see how perfectly it can make my words...
Will it chime after the recap? Will the floppy drive work? Will WordPerfect for the Mac be a treat to use? Youll have to watch to find out!
*
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![My UMC U5SX 486-33F: Does Windows 98SE Detect It as a Pentium MMX? (Computerized Start™ Live)
Youve probably heard of Intel and AMD processors, as both manufacturers are still in business today. If youve been into computing long enough, youve probably also heard of Cyrix. All three companies made 486 processors for Socket 1-3 systems.
But did you know that UMC also made 486 processors? No? That partly might be because Intel sued patent infringement, and as a result of the settlement of the case, UMC had to withdraw their processors from the US market. That might also be because they only made 486SX-era processors, not leaving a huge window for sales in other markets; Wikipedia mentions that they did have a clock-doubled version in production, but only engineering samples existed.
Speaking of Wikipedia, someone has added a claim with no footnote or citation:
Due to an error in the microcode, Microsoft Windows 98 Second Edition identifies some processors as an Intel Pentium MMX which could cause the operating system and software running within it to crash or exhibit undefined behavior.
(https://en.wikipedia.org/wiki/UMC_Green_CPU, accessed December 30, 2025)
To which I have to say, [citation needed].
Since I now have a UMC Green CPU, specifically the UMC U5SX 486-33F, I can actually try to put this to the test... or all the Windows installs will put me to the test! We got Windows 95 and Windows 98 First Edition, then had trouble getting Windows 98 Second Edition installed.
Tonight, Im going to try to get Windows 98SE installed, but by doing a fresh install instead of an update.
Will Windows 98SE detect my UMC 486 as a Pentium MMX? Or will I have trouble installing Windows 98SE on this unsupported system configuration? Youll have to watch to find out!
*
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**
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Follow me on Twitter: https://jdmcs.net/mytwitter My UMC U5SX 486-33F: Does Windows 98SE Detect It as a Pentium MMX? (Computerized Start™ Live)](https://i.ytimg.com/vi/SsPsjlIT-Q4/mqdefault.jpg)