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Downtown Doug Brown
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Latest posts
Last updated 3 days ago
Fixing an eMachines EL1200 BIOS bug with Claude
3 days ago
I’m no stranger to pushing hardware past its limits. For example, seven...
Finding a broken trace on my old Mac with the help of its ROM diagnostics
8 months ago
Yesterday, for the first time in about a year, I tried powering...
Debugging BeagleBoard USB boot with a sniffer: fixing omap_loader on modern PCs
10 months ago
This post is about the original OMAP3530 BeagleBoard from 2008. Yes, the...
An update about the hidden Performa 550 recovery partition
12 months ago
Earlier this year, I wrote about how I rescued a special recovery...
Finding a 27-year-old easter egg in the Power Mac G3 ROM
about 1 year ago
I was recently poking around inside the original Power Macintosh G3’s ROM...
Modifying an HDMI dummy plug’s EDID using a Raspberry Pi
about 1 year ago
I recently found myself needing to change the monitor that a cheap...
Please don’t ship heavy, fragile vintage computers. They will be destroyed.
over 1 year ago
As part of my research into the Macintosh Performa 550’s factory recovery...
How I fixed the infamous Basilisk II Windows “Black Screen” bug in 2013
over 1 year ago
I’ve been noticing a lot of fun stories lately about bugs in...
Apple’s long-lost hidden recovery partition from 1994 has been found
over 1 year ago
In my last post about hard drives that go bad over time...
The gooey rubber that’s slowly ruining old hard drives
over 1 year ago
As part of my work toward an upcoming post about a lost...
The invalid 68030 instruction that accidentally allowed the Mac Classic II to successfully boot up
over 1 year ago
This is the story of how Apple made a mistake in the...
Easy repair of a defective NZXT Signal 4K30 capture card
over 1 year ago
The last couple of electronics repairs I’ve written about on this blog...