Comimark 1Pcs Mini 3 in1 PC Laptop Analyzer PCI PCI-E LPC Tester Diagnostic Post Test Card

Great piece of diagnostics for any PC business. Easy to use and fits most every motherboard.

I purchased these as part of my computer course. Although I haven't used it yet, I have use the other PSU voltage checkers, and they seem to work alright. I will say, most of the laptops I've checked have had faulty wall warts, which were easily replaceable. Also fixed the problem, too.

Board I received was broken, but worse it's shorted somewhere, such that when connected to a system it prevents the machine from starting, and could cause damage to the pcie lanes or any connected equipment. It's clear that these boards weren't given basic q/a before being finalized or shipped.

This mini diagnostic test card is so small I’ve lost it! It’s ok. But I never expected it to be smaller than a business card! It does an ok job but due to it’s size it may not be what you need! Definitely don’t buy it if your intention is to use it on a desktop PC! That will never happen! It’s too small for a desktop computer!

This card is very useful to debug a non-booting PC or Laptop.

to fix an old computer

Instructions are a bit rambling,seems as if paper space was more important than information

These testers are not going to fit most if not all modern laptops. Dont waste your money, you need tester that plugs into memory slot made by russians.