7 interactive labs · right in your browser

PC assembly and maintenance labs

Build, upgrade and maintain a computer step by step, right in your browser and with nothing to install.

Motherboard assembly

Install the CPU, RAM, M.2 SSD and CPU cooler.

15 min
Installing components in the case

Install the motherboard, power supply and graphics card, connect the cables and close the case.

25 min
Replacing thermal paste

Remove the CPU cooler, clean off the old paste and apply new paste.

10 min
Installing expansion cards

Install a Wi‑Fi and Bluetooth card and connect its antennas and internal cable.

10 min
Upgrade PC storage

Install a hard drive, a SATA SSD and an M.2 SSD.

15 min
Install PC fans

Mount and connect a front fan.

10 min
Test a power supply

Start it with a jumper, measure it with a multimeter and check it with a tester.

15 min

How the labs work

Each lab guides you step by step: an orange marker shows where to act and the panel explains what you are doing and why. A green notice confirms each action.
“About this lab” covers the theory: parts, tools and precautions. During the steps, “On a real PC” adds tips for doing it on an actual computer.
Your progress is saved in this browser: you can leave a lab halfway, continue later or start again whenever you like. You do not need an account.
They are designed for a computer, with a mouse and a large screen: that is where they work best. They also run on tablets and phones, but the scene looks small and is harder to handle.

Each lab has its own quiz, graded out of 10, with a certificate from 7.

While new assembly labs are on the way

Discover Katadoku, a collection of logic and deduction games: read the clues, rule out options and find the only solution.