Build Your First PC — Beginner's Guide

Building your own PC is one of the most rewarding things you can do as a tech enthusiast. You get exactly the performance you need, at a better price than a pre-built, and you learn how everything works along the way.

Step 1 — Plan Your Build

Decide what you'll use the PC for. Gaming, video editing, streaming, and general use all have different requirements. Set a budget and use it to guide your component choices. A balanced build avoids bottlenecks — don't pair a top-end GPU with a budget CPU.

Step 2 — Choose Your Components

CPU — the processor (e.g. AMD Ryzen 7 or Intel Core i7)
Motherboard — must match your CPU socket
RAM — 16GB minimum, 32GB recommended
Storage — NVMe SSD for your OS and games
GPU — essential for gaming and creative work
PSU — power supply with enough wattage and headroom
Case — must fit your motherboard form factor
CPU Cooler — stock coolers are often inadequate for performance CPUs

Check our PC Component Buying Guide for detailed advice on each part.

Step 3 — Gather Your Tools

You'll need a Phillips head screwdriver (magnetic tip recommended), an anti-static wrist strap or grounded surface, good lighting, and a clean flat workspace.

Step 4 — Install the CPU

Open the CPU socket lever on the motherboard, align the CPU using the triangle marker in the corner, lower it gently into place — never force it — and lock the lever down.

Step 5 — Install RAM

Check your motherboard manual for the correct RAM slots (usually slots 2 and 4 for dual-channel). Press the RAM sticks firmly until the clips click. Enable XMP or EXPO in BIOS later to run at rated speed.

Step 6 — Install the CPU Cooler

Apply a small pea-sized amount of thermal paste to the centre of the CPU (if not pre-applied). Mount the cooler according to its instructions, ensuring even pressure. Connect the fan to the CPU_FAN header.

Step 7 — Install Storage

Slot your NVMe SSD into the M.2 slot at a 30-degree angle, press flat, and secure with the retaining screw. For SATA SSDs, mount in a drive bay and connect SATA data and power cables.

Step 8 — Prepare the Case

Install the I/O shield, fit motherboard standoffs in the correct positions, and route cables through grommets before installing the motherboard.

Step 9 — Install the Motherboard

Lower the motherboard into the case, aligning rear I/O ports with the shield and screw holes with the standoffs. Secure with the provided screws — don't overtighten.

Step 10 — Install the GPU

Remove the appropriate PCIe slot covers from the rear of the case. Slide the GPU into the primary PCIe x16 slot until it clicks. Secure with screws and connect PCIe power cables.

Step 11 — Install the PSU & Connect Cables

Mount the PSU, then connect: 24-pin ATX to motherboard, 8-pin CPU power, PCIe power to GPU, SATA power to drives, and front panel headers (power button, reset, USB, audio).

Step 12 — First Boot

Connect your monitor, keyboard, and mouse. Power on. Enter BIOS, enable XMP/EXPO for your RAM, set boot order, and install your OS.

Troubleshooting Tips

No display: Check GPU power connectors and monitor cable. Try reseating the GPU.
Won't POST: Reseat RAM one stick at a time. Check CPU power connector.
Fans spin but no boot: Check front panel headers are connected correctly.
Overheating: Ensure cooler is mounted correctly and thermal paste is applied.