I kept the CRT but upgraded this iMac G3 to 2025 Speed!
Matt Gray
Sep 14, 2025 12:05
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I dragged this iMac G3, kicking and screaming, 25 years into the present by swapping its innards for a brand new Mac Mini M4.
Matt Gray | http://mattg.co.uk | @MattGrayYes
This video is sponsored by PCBWay: https://www.pcbway.com/
PCB files now available, and why I won’t build one for you: https://www.patreon.com/posts/143704713
📋 Credits 📋
Editor - Alex Bate @alexjrassic
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🛠️ Parts Used 🛠️
iMac G3
Mac Mini M4 - https://amzn.to/46lOIgE
USB C to VGA adapter - https://amzn.to/42pwgm3
Rocky Hill's PCBs - https://github.com/qbancoffee/imac_g3_ivad_board_init
BetterDisplay - https://github.com/waydabber/BetterDisplay
Used while developing
USB Tiny ISP Programmer - https://amzn.to/4n2KXnv
Mini Logic Analyser - https://amzn.to/4pmiKcZ
VGA Breakout - https://amzn.to/4gl6Uvr
D-SUB 15 Breakout - https://amzn.to/3K07H9c
🎸 Music 🎸
The Fly Guy Five - Another Pineapple Please
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💸 Full Disclosure 💸
💷 PCBWay provided their services for free and paid me for the advert in the middle of the video.
💷 My Patreon supporters' help meant I could work on this instead of other paid work
💷 All Amazon links are affiliate links which give me a small percentage of what you pay them as a tip for sending you their way. It doesn't cost you more.
Previous video titles:
This 25-Year-Old iMac is Faster Than My Gaming PC
World’s FASTEST iMac G3?
The Only M4 iMac G3 With Original CRT Screen!
I kept the CRT but upgraded this iMac G3 to 2025 speed!
Original CRT screen, but now M4 powered iMac G3!
Hi, I'm Matt Gray. You may know me from my work with Tom Scott, The Technical Difficulties, Matt Gray is Trying, or even as a broadcast engineer working in radio and TV.
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