Eniun PC Lab

PC Assembly Simulator

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PC assembly and maintenance labs

Eniun PC Lab is a PC assembly simulator with a 3D workshop that gives you access to two interactive labs: preparing the motherboard and installing the components inside the case. It runs in your browser, with nothing to install. Practice each operation with instructions, connection details and tips for a real computer.

1. Recommended order: first the motherboard, then the case

We recommend doing Motherboard assembly first and then Installing components in the case. That way you follow the process from preparing the motherboard to closing the computer. You can choose a different order: both labs are open access and you do not have to finish the first to enter the second. In the case lab, the CPU, RAM, M.2 SSD and CPU cooler are already installed on the motherboard.

Recommended device: We recommend using Eniun PC Lab on a laptop or desktop computer. Assembly needs screen space; on phones and tablets, some actions may be difficult or may not work properly.

You can click or drag the parts, depending on the action shown. In the case lab you can rotate and zoom the view; the close-ups help you recognize connector guides, contacts and their orientation.

2. How the workshop works

3. Lab 1: motherboard assembly

You work on an ASUS PRIME B760-PLUS D4 motherboard on the bench, before fitting it in the case, following the instructions in its manual:

  1. Prepare the workstation with the anti-static mat and a grounded wrist strap.
  2. Install the processor in the LGA1700 socket: open the lever, position it according to its orientation and close the retention mechanism.
  3. Install two DDR4 RAM modules in the recommended slots for dual channel.
  4. Insert an M.2 NVMe SSD and secure it with its screw and a Phillips screwdriver.
  5. Fit the CPU cooler, secure its mounts in an alternating pattern and connect the fan to CPU_FAN.
Start motherboard assemblyStep by step, with explanations and help.

4. Lab 2: installing components in the PC case

The motherboard prepared in the previous lab is installed in an ATX chassis:

  1. Check that the chassis standoffs line up with the holes in the motherboard.
  2. Insert the motherboard with the rear ports facing their opening, line it up and rest it on the standoffs.
  3. Secure the motherboard with its screws and the screwdriver.
  4. Place the ATX power supply in its bay and screw it to the chassis.
  5. Connect the 24-pin ATX and 8-pin EPS CPU power cables.
  6. Connect POWER SW, RESET SW, POWER LED and HDD LED, observing the polarity of the indicators.
  7. Connect the front-panel USB 3.0, USB 2.0 and HD AUDIO, and the rear fan.
  8. Install and secure the graphics card in PCI Express x16 and connect its 6-pin PCIe power cable.
  9. Route and secure the cables, leaving some slack and keeping the fans clear.
  10. Fit the side panel and tighten its two thumbscrews.
Start case assemblyAssembly, internal connections, graphics card, cabling and closing up.

This lab is fully available up to closing the case. The computer stays disconnected from mains power. The next planned labs will focus on maintenance: replacing thermal paste and testing a power supply.

5. What you will have practiced by the end

The assembly order, component orientation and the difference between power, data and signal connectors. You will have prepared the motherboard, secured the components to the chassis and routed the cables before closing the panel. The simulator keeps your progress in each lab in this browser.

6. After assembly

External connections include the monitor, keyboard, mouse and other peripherals. The first startup involves checking the build, powering on, POST and checking the CPU, RAM and storage in UEFI/BIOS.

7. Upcoming maintenance labs

We are preparing these two labs, which are not available yet:

  1. Replacing thermal paste. Remove the CPU cooler, clean off the old paste, apply new paste and refit the cooling system.
  2. Testing a power supply. Check an ATX power supply with a tester and a jumper start test, and interpret the results.

8. Who it is for

For students starting to learn PC assembly and maintenance, for example in IT vocational training; for teachers who want to practice it in class before touching real hardware; and for anyone who wants to know how a PC is put together.

The simulator does not replace a real workshop: it helps you understand each operation before doing it with real parts. When you build a real computer, always check your motherboard manual.

Keep practicing

We'll email you when we publish a new Eniun PC Lab lab.

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