Not my post/video. Link to mastodon.social post which then links to YouTube video.
Poster bought an old firewall hardware:
- saw unpopulated footprints on the circuit board,
- analyzed the chips,
- found the serial comm to access BIOS (blocked by password),
- dumped the SPI flash memory,
- obtained supervisor password,
- accessed the BIOS from serial comm,
- enabled the video display in BIOS,
- soldered the HDMI port,
- soldered the SATA power and data ports and the associated components,
- connected a SATA SSD,
- checked that the SSD is being recognized in BIOS,
- made modifications to firewall circuit board to mechanically secure the SSD, and to face plate to facilitate the HDMI port,
- installed FreeDOS and used it as a retro gaming PC.
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