Uploaded April 2024 | Updated September 2026, 2 weeks ago
I've launched a merch shop: shop.jdmcs.com - use code APPLEFOOLS for 7% off all April Apples merchandise through April 30th!
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Back in 1997 (yes, I'm old), I built my first PC and took some blurry photos of it. Little did "1997 Me" know that "2023 Me" would not only be able to determine the parts that went into that first PC from a couple of blurry photos, but would also be able to source most of those parts from eBay (the place where I buy things I later regret™).
Probably because "1997 Me" figured that no one in their right mind would want to be using a computer this old over 25 years later...
As far as I know, I'm still in my right mind, and "2024 Me" found the case that I used for my First PC Rebuild project. Alas, the case is missing the ridonkulous feet (as I was probably in the minority of users that actually bothered), but it is the case I remembered using. It probably even features extra-sharp edges -- a feature, not a bug, of 1997 "budget-oriented" cases -- so don't be surprised if I swap my normal gloves for cut-resistant ones, just in case I discover the edges are rusty inside.
But put the rest of the parts that I've acquired for my first PC rebuild project inside this case I must. (I'm channeling my best Yoda in the worst way here...)
Will I discover partway through the livestream that this is the wrong size case? Wil this case mysteriously short components together? Will I never manage to set the LED display to "90"? You'll have to watch to find out!
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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!
**
Read Computerized Start™, my Official Blog: jdmcs.net/myblog
Follow me on Instagram: jdmcs.net/myinstagram
Follow me on Twitter: jdmcs.net/mytwitter
I've launched a merch shop: shop.jdmcs.com - use code APPLEFOOLS for 7% off all April Apples merchandise through April 30th!
*
Back in 1997 (yes, I'm old), I built my first PC and took some blurry photos of it. Little did "1997 Me" know that "2023 Me" would not only be able to determine the parts that went into that first PC from a couple of blurry photos, but would also be able to source most of those parts from eBay (the place where I buy things I later regret™).
Probably because "1997 Me" figured that no one in their right mind would want to be using a computer this old over 25 years later...
As far as I know, I'm still in my right mind, and "2024 Me" found the case that I used for my First PC Rebuild project. Alas, the case is missing the ridonkulous feet (as I was probably in the minority of users that actually bothered), but it is the case I remembered using. It probably even features extra-sharp edges -- a feature, not a bug, of 1997 "budget-oriented" cases -- so don't be surprised if I swap my normal gloves for cut-resistant ones, just in case I discover the edges are rusty inside.
But put the rest of the parts that I've acquired for my first PC rebuild project inside this case I must. (I'm channeling my best Yoda in the worst way here...)
Will I discover partway through the livestream that this is the wrong size case? Wil this case mysteriously short components together? Will I never manage to set the LED display to "90"? 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









![The Macintosh IIsi: Can I Find the Broken Trace(s) on Either Logic Board? (Computerized Start™ Live)
The Macintosh IIsi was launched as a lower-cost alternative in the Macintosh II series. To keep costs down, Apple used more electrolytic capacitors, and the surface-mount electrolytic capacitors from the early 90s are past their expected lifetime. In addition, despite the power supply being made by Sony, the capacitors in it are also known to leak (though I cant help think cost tweaking by Apple led Sony to use lower grade capacitors).
When the capacitors seal fails, the leaking electrolyte can and will cause damage to the board. Component damage is possible, but I think I cleaned the electrolyte off before this could happen on either logic board (but well keep that possibility in mind). More likely, electrolyte seeped under a chip and worked its way under the solder mask to corrode one or more traces. The break could even be small enough to not be apparent without magnification... or a multimeter.
Get ready to embrace the beep of the multimeter in continuity mode, as we have 32 data and nearly as many address lines to check at multiple end points... IIsigh.
Will we find trace damage on either logic board? Will I have to remove the most difficult to solder parts (looking at you 68030 and RBV chips)? Will I have at least one working logic board by the end of the stream? Youll have to watch to find out!
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Table of Contents
0:00:00 Pre-Roll
0:02:39 Greetings and Announcements
0:04:20 Things You All Have Given Me & NoVA Meetup Pickups
0:12:32 Wheel of Regrets™ (Who comes up with these titles anyway?)
0:12:55 Wheel of Regrets™: Dell 4/33 Motherboard (for my Dell 4/25P)
0:21:12 Wheel of Regrets™: Eight Tested 8MB EDO SIMMs
0:23:40 Wheel of Regrets™: [More] Macintosh Plus/SE/etc. Case Screws
0:24:42 Wheel of Regrets™: Nintendo SNS-CPU-RGB-02 Motherboard (for SNES)
0:28:14 Wheel of Regrets™: ATI EGA Wonder (replacement for the weird text card)
0:31:55 Wheel of Regrets™: Iomega Zip 100 5.25 Blue Internal SCSI Drive (originally for Amiga?)
0:43:30 Wheel of Regrets™: Testing the SNES Motherboard
1:01:00 A Whole Lot of Me Finding and Setting Up Parts to Test Video Cards
1:10:30 Trouble with the RGBtoHDMIs microSD Card...
1:37:50 Wheel of Regrets™: Testing Two EGA Cards, including the ATI EGA Wonder
2:15:22 Clearing the Workbench so We Can IIsigh...
2:22:15 The Great IIsi Broken Trace Search (from IIsi number 1 and IIsi number 2)
3:53:59 Closing Thoughts
3:55:49 Outro
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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 The Macintosh IIsi: Can I Find the Broken Trace(s) on Either Logic Board? (Computerized Start™ Live)](https://i.ytimg.com/vi/IuZV7pyZL-U/mqdefault.jpg)
