I likewise wrote a COVID-boredom-induced blog post about my many missteps, and eventual failure, getting AIX to run on an old PC. My "learnings" there were that the installation media (floppies) are _written to_ by the installer, making a reset to a known state rather difficult, and also that support for IDE disks was only made available in a patch.
Unfortunately, at boot, the drive is recognized but can't be mounted. I suspect it has something to do with the LBA card (Promise EIDEMax) I have in the machine I was trying to install it in, since the machine only supports C/H/S drives out of the box.
Or it could be platform quirks, or more interesting failures like crystal oscillator degrading, but I'd leave those to later.
Not to say SRAM is any better (it means "I shit").