Build your PC
Build your own PC step by step and to budget with our 3D tower: pick your games for estimated FPS, catch compatibility issues, generate a build, then save and share it. If you’re not confident building a PC yourself, use our comparator and find a pre-built PC matched to your games.
Beta version: errors may occur (compatibility, prices, estimates). Always double-check product pages and compatibility before buying.
Build price
≈ $78
1/9 installed
Step 1 / 9
Case
Your build
Parts estimate ≈ $78
Amazon Associates: PC4Games may earn a commission. Shown prices are estimates (≈) — exact price and stock on Amazon.
FAQ: how to build a gaming PC
Got your parts list? Here are concrete answers for the build itself: install order, cables, first boot, and common mistakes. Always confirm price and stock on Amazon.
In what order should I install PC parts?
Start outside the case: CPU in the socket, then thermal paste and cooler. Next RAM in dual-channel and the M.2 SSD, then mount the motherboard in the case. Install the GPU last in the top PCIe x16 slot, with the PSU already fitted or right after. The Create-your-PC tool follows the same flow: case → GPU → CPU → motherboard → RAM → SSD → Wi-Fi → cooler → PSU.
Do I need to apply thermal paste myself?
Yes if the cooler or CPU doesn’t come with paste pre-applied. A pea-sized blob in the center of the IHS is enough. More paste does not mean cooler temps. Some AIOs already have a pad: don’t stack extra paste on top.
Which power cables matter most?
Three essentials: the 24-pin ATX on the motherboard, the CPU 8-pin (usually top-left), and the GPU PCIe cable(s) (6+2 or 12VHPWR). Without the CPU 8-pin, many builds power on with no display. Route cables behind the tray for better airflow.
How do I install RAM correctly?
Always use a 2×8 or 2×16 kit (dual-channel), not a single stick. On four-slot boards, usually use slots 2 and 4 (A2/B2). Enable XMP or EXPO in the BIOS so you actually hit the rated speed (often 3200 MT/s DDR4 or 6000 MT/s DDR5).
No display on first boot — what should I check?
Plug the monitor into the GPU, not the motherboard I/O, if you have an F/KF CPU without iGPU. Recheck 24-pin + CPU 8-pin, reseat RAM, and try one stick. On AM5 / LGA1700, memory training can take 1–3 minutes. If still blank, clear CMOS and retry.
How do I check CPU, motherboard, and RAM compatibility?
Match the socket: AM4 with B550, AM5 with B650, LGA1700 with B760/Z790. RAM must match the board: DDR4 or DDR5, never both. Ryzen 7000/9000 needs DDR5; Ryzen 5000 stays on DDR4 with B550. Check the board maker’s CPU support / QVL list before buying.
How long does a first gaming PC build take?
Plan 2–4 hours for a careful first build. Use a Phillips screwdriver, a clear desk, and don’t force the CPU into the socket — if it resists, the alignment key is wrong.
Wi-Fi PCIe or Ethernet for gaming?
Ethernet is still the most stable for competitive games. A Wi-Fi 6 PCIe card is fine if the router is close and you can’t run a cable. If your motherboard already has Wi-Fi, skip a dedicated card and spend the money on the GPU.