Found on https://500mile.email/ via another hackernews thread.

Is there also one to increase the memory?

reminds me of https://apple.stackexchange.com/a/72215

What is this a Pentium III?

> "I think i solved the issue by putting a piece of tape underneath the metal plate and the motherboard. So the plate where the keyboard is attached to can't touch they motherboard."

Sounds like the metal screw shorted one or more signals on the motherboard.

PPE - Piss poor engineering. Quanta might've been to blame since Dell was mostly a sales operation by this time.