What equipment is needed to diagnose the hardware of system blocks, nettops, laptops, server and other equipment?

Question

Iron

Hello.
Interested in what equipment "enikey" use to test iron.
There is one computer in our organization that periodically slows down a lot, rearranged Windows, drove most of the well-known programs of testers forum.oszone.net/thread-17423.html. All show the norm and do not find anything suspicious. Hence the idea to try to analyze the equipment not programmatically, but physically, because. I myself am very interested in such equipment and need it for work.
Tell me what they are called or advise something of your own.

Answer 1

I’ll tell you this story: I dug up my old computer and I wanted to make something useful out of it, I ran tests of the vidyuhi, processor, power supply, hard drive and RAM - everything is ok, but for some reason the computer slowed down from time to time, it remained something that is not tested by programs - a motherboard, sat for a while and decided to take it to a flea market, took it, they tested it with a smart look and paid as for a working assembly.
Story number two in the company had to roll Windows on 5 machines (moreover, they are all like twins). suddenly the keyboard fails on one - I changed the keyboard from the neighboring one - it didn’t work, it was dismantled - they poked the motherboard with a finger twice and it all worked - they took the system manager to the chief solitaire specialist.