We call in reinforcement to debug our dead PS/2. Eric Schlaepfer, better known as Tube Time on Twitter, uses the power of the logic analyzer and the Ghidra reverse engineering software to figure out what happens in the BIOS during the failed boot. PS/2 repair playlist:    • IBM PS/2 Model 77   Our sponsor for PCBs: https://www.pcbway.com/ Support the team on Patreon: https://www.patreon.com/curiousmarc Buy shirts on Teespring: https://teespring.com/stores/curiousmarcs-store Learn more on the companion site: https://www.curiousmarc.com/ Contact info: null