...at the risk of invoking any latent bad karma of an unknown source....
Nothing, with the exception of 'puter monitors, which theres' been a couple.
Those got recycled, most else given away or sold. The fate of 'vintage' computers is that any upgrades are generally improbable or financially pointless...
*shrug* Don't hate me.
I seem to be able to fix most everything else but broken hearts.....
.....but that's because people don't let me near them with a knife.... ;)