Uploaded July 2025 | Updated September 2026, 1 week ago
This stream is brought to us by Joe's Computer Museum, as he bought the brand new LCD screen for this project. Please check out his wares for your vintage computers at jcm-1.com/shop
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Two years ago, I bought a Gateway Profile 3 from the System Source Swap Meet, and more recently, bought a "for parts" Profile 3 on eBay (the place where I buy the things I later regret™) in the hopes of eventually making one working Profile 3 from the two.
After all, it's an early beige LCD All-In-One PC with grey cow spots where the front speakers are. It's very on-brand for Gateway, but the style came at a price: according to @IkesVintageTech, the Gateway Profile 3 at launch cost twice as much as an iMac G3. Yikes! (And that probably explains why Apple waited for the cost of LCDs to come down before releasing the iMac G4. But I digress...)
Anyways, after seeing that both LCD screens were damaged and hearing my hesitation in buying the new LCD option, Joe of Joe's Computer Museum stepped up to buy the new LCD screen (thanks Joe!) I believe his words were that "we're going to have a working Profile 3, or make smoke trying!"
Will new caps fix the motherboard I didn't break? Will I have to solder on a tiny component to fix the working motherboard I did break? Will I have a working, blemish-free Profile 3 by the end of the evening? You'll have to watch to find out!
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Use discount code JUSTINTIME for for 5% off all Computerized Start™ merchandise at https://shop.jdmcs.com.
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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!
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Read Computerized Start™, my Official Blog: jdmcs.net/myblog
Follow me on Instagram: jdmcs.net/myinstagram
Follow me on Twitter: jdmcs.net/mytwitter
This stream is brought to us by Joe's Computer Museum, as he bought the brand new LCD screen for this project. Please check out his wares for your vintage computers at jcm-1.com/shop
*
Two years ago, I bought a Gateway Profile 3 from the System Source Swap Meet, and more recently, bought a "for parts" Profile 3 on eBay (the place where I buy the things I later regret™) in the hopes of eventually making one working Profile 3 from the two.
After all, it's an early beige LCD All-In-One PC with grey cow spots where the front speakers are. It's very on-brand for Gateway, but the style came at a price: according to @IkesVintageTech, the Gateway Profile 3 at launch cost twice as much as an iMac G3. Yikes! (And that probably explains why Apple waited for the cost of LCDs to come down before releasing the iMac G4. But I digress...)
Anyways, after seeing that both LCD screens were damaged and hearing my hesitation in buying the new LCD option, Joe of Joe's Computer Museum stepped up to buy the new LCD screen (thanks Joe!) I believe his words were that "we're going to have a working Profile 3, or make smoke trying!"
Will new caps fix the motherboard I didn't break? Will I have to solder on a tiny component to fix the working motherboard I did break? Will I have a working, blemish-free Profile 3 by the end of the evening? 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
![Apple ][ Plus Clone Tantalum Troubles: Finding the Short on the 12V Rail (Computerized Start™ Live)](https://i.ytimg.com/vi/y_2k2MA5XMY/mqdefault.jpg "Apple ][ Plus Clone Tantalum Troubles: Finding the Short on the 12V Rail (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 May 31th!
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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...
Whats not good is this clone motherboard: there is a short on the 12V rail. But after removing all the chips that are on the 12V rail, the short was still present. Then I noticed it: a previous owner replaced ceramic capacitors with tantalum capacitors.
There are no polarity markings for these capacitors, so I suspect the board was designed for ceramic capacitors (like the Apple ][ Plus), and its likely one or more of these capacitors are installed backwards. Hopefully removing all the tantalum capacitors will remove the short, then Ill replace them with ceramic capacitors.
Will I find the short? Will the ceramic capacitors I bought make the board look original? Will I get to powering this motherboard up? Youll have to watch to find out!
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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")
