@Shocker99

9:20  I suspect they've barely scratched the surface.

@Randoneering

Ahhh bubbled water corner. My favorite

@eduardodelvalle2071

Try updating BIOS and microcode for the CPU of the optiplex.

@brandonmansfield4328

You could return the CPU and buy a 12th gen.  You didn't give much up and they are stable.