Uploaded September 2025 | Updated September 2026, 1 week ago
The IBM Personal Computer, aka the Model 5150, literally started the PC revolution. The IBM PC launched in 1981, and according to Wikipedia, "started at $1,565 for a configuration with 16 KB RAM, Color Graphics Adapter, keyboard, and no disk drives." Fortunately mine is better equipped, likely shipping from IBM with 64KB-256KB of RAM and at least one floppy drive. (I can't tell if some of the RAM in mine was installed after shipping, or had bad RAM replaced after purchase.)
And someone go some good use out of this 5150: it has a third-party CGA card (possibly to get an extra parallel port without taking up a separate slot), an AST SixPackPlus card, and a Miniscribe hard card.
When this computer had its Wheel of Regrets™ debut, it threw a double temper tantalum on power up. (And yes, I tested for shorts first - there were none.) One tantalum on the motherboard and one tantalum on a floppy drive both contributed to the smoke show. I'm glad I was behind my "blast shield" and wearing my nerdy safety glasses!
Because I don't trust these old tantalum caps that IBM used, I am going to pull the motherboard out, recap it and all of the other IBM cards, and then try to test the hard card. It's a Miniscribe so it might be a brick... but it could offer clues as to what this computer was used for back in the day.
Will it throw another temper tantalum? Will the floppy drives work? Will the hard card work? You'll have to watch to find out!
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The IBM Personal Computer, aka the Model 5150, literally started the PC revolution. The IBM PC launched in 1981, and according to Wikipedia, "started at $1,565 for a configuration with 16 KB RAM, Color Graphics Adapter, keyboard, and no disk drives." Fortunately mine is better equipped, likely shipping from IBM with 64KB-256KB of RAM and at least one floppy drive. (I can't tell if some of the RAM in mine was installed after shipping, or had bad RAM replaced after purchase.)
And someone go some good use out of this 5150: it has a third-party CGA card (possibly to get an extra parallel port without taking up a separate slot), an AST SixPackPlus card, and a Miniscribe hard card.
When this computer had its Wheel of Regrets™ debut, it threw a double temper tantalum on power up. (And yes, I tested for shorts first - there were none.) One tantalum on the motherboard and one tantalum on a floppy drive both contributed to the smoke show. I'm glad I was behind my "blast shield" and wearing my nerdy safety glasses!
Because I don't trust these old tantalum caps that IBM used, I am going to pull the motherboard out, recap it and all of the other IBM cards, and then try to test the hard card. It's a Miniscribe so it might be a brick... but it could offer clues as to what this computer was used for back in the day.
Will it throw another temper tantalum? Will the floppy drives work? Will the hard card work? You'll have to watch to find out!
*
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
![Saving COMPUTER (My Apple ][ Plus Clone from MCA), One Socket at a Time (Computerized Start™ Live)](https://i.ytimg.com/vi/wEja5esosHs/mqdefault.jpg "Saving COMPUTER (My Apple ][ Plus Clone from MCA), One Socket at a Time (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 July 31!
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Last time I had COMPUTER on the bench, I started the process of removing sockets. I didnt get very far, and even caused some trace damage. But what I didnt realize at the time was that the handle for my desoldering station was failing. And @JoesComputerMuseum has since given me another suggestion for removing sockets with problematic solder, which I successfully used on the Apple ][ Plus Clone motherboard I bought on eBay (the place where I buy the things I later regret™).
Except that Apple ][ Plus Clone motherboard wasnt a regret, yet COMPUTER was almost @Mac84s regret... but I digress.
I now have a new handle for my desoldering station, and it made quick work of the solder on my VIC-20. Maybe it will also make quick work of the solder on COMPUTER. Because it looks like Im going to have to save computer one corroded IC socket at a time (repeat 88 times - Great Scott!).
Will I be able to remove more than one socket an hour? Will I cause more trace damage? Will Clarus the Desoldering Station hold out? 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")
