[Vexs]

The dude tests basically anything and everything, and gives them generally pretty reasonable goes at a proper test. Sure, it's far off from an industry standard in a lot of cases, but unlike the industry (generally) he does side by side comparisons.

[TylerE]

Some of his tests are like comparing RAM by temperature. They just make no sense.

[cuu508]

I've learned from watching vintage computer repair videos on youtube that touching chips on a running system and looking for a hot one is a common troubleshooting technique.

[AstroJetson]

Fun fact if you take a board out of a Burroughs B6700/B6800 that you think is bad (has a bad chip) if you drop it flat on the floor, chips side up from 36" (about belt height) 9 times out of 10 the lid on the bad chip will fly off. Turns out the heat from a failing chip heats enough to release the glue.

YMMV on fixing a now 50 year old computer.