Building a PC in 2026 takes about 3–4 hours on your first attempt, saves money compared to most pre-built systems at equivalent specs, and gives you a machine configured exactly for your workload. The process is far less intimidating than it looks. Here is the complete guide.
What changed in 2026
- AM5 and LGA1851 are the current consumer platforms. AMD's AM5 (Ryzen 7000/8000 series) and Intel's Arrow Lake (Core Ultra 200 series) are the current mainstream sockets. AM4 builds are cheap but offer no upgrade path; don't start a new build there.
- DDR5 is now the standard. DDR4 builds are cheaper but AM5 requires DDR5. The price gap between DDR4 and DDR5 has narrowed to ~$20–$40 for a typical kit.
- NVMe Gen 4 and Gen 5 SSDs dominate. SATA SSDs are legacy for a primary drive. Gen 4 NVMe (~$65–$90 per 1 TB) is the sweet spot; Gen 5 is faster but commands a premium only worth it for specific workloads.
- GPU market stabilized. NVIDIA RTX 50-series (Blackwell) and AMD RX 9000-series launched in 2025; by mid-2026 supply is normalizing and pricing is more rational.
Core components and what to prioritize
| Component |
Budget tier (~$600 build) |
Mid tier (~$1,000 build) |
High tier (~$1,500+ build) |
| CPU |
Ryzen 5 7600 / Core i5-13400 |
Ryzen 7 7700X / Core i5-14600K |
Ryzen 9 9900X / Core i9-14900K |
| GPU |
RX 7600 / RTX 4060 |
RX 7700 XT / RTX 4070 |
RX 9700 XT / RTX 5070 |
| RAM |
16 GB DDR5-5200 |
32 GB DDR5-6000 |
32–64 GB DDR5-6400 |
| Storage |
1 TB NVMe Gen 4 |
1–2 TB NVMe Gen 4 |
2 TB NVMe Gen 4/5 |
| Motherboard |
B650 / B760 |
B650E / Z790 |
X670E / Z790 high-end |
| PSU |
650 W 80+ Bronze |
750 W 80+ Gold |
850 W 80+ Gold |
Step-by-step assembly
Before you start: work on a non-carpeted surface, touch a grounded metal object regularly (or wear an anti-static wrist strap), and keep the parts in their anti-static bags until installation.
Step 1: Install CPU into motherboard
Lay the motherboard on its box (a non-conductive surface). Lift the CPU socket lever, align the CPU to the arrow indicator, drop it in without force, and close the lever.
Step 2: Install RAM
Check the motherboard manual for the correct dual-channel slots (usually slots 2 and 4). Push the modules in until the clips click. Do this before mounting the motherboard — it's easier.
Step 3: Mount the CPU cooler
Apply a pea-sized dot of thermal paste on the CPU heat spreader if the cooler doesn't come pre-applied. Mount the cooler per its manual. Secure evenly to avoid uneven pressure.
Step 4: Install the M.2 SSD
Find the M.2 slot on the motherboard (check the manual for which slot gets Gen 4 speeds). Insert at ~30 degrees, push flat, secure with the small screw.
Step 5: Mount motherboard in the case
Screw in the I/O shield, align the motherboard standoffs, and secure with 6–8 screws. Don't overtighten.
Step 6: Install GPU
Remove the PCIe slot covers from the case. Slot the GPU into the primary PCIe x16 slot and secure the bracket. Connect the PCIe power cables from the PSU.
Step 7: Cable management
Route PSU cables: 24-pin ATX (motherboard power), 8-pin CPU power (top of board), PCIe power (GPU). Connect front panel connectors (power button, USB, audio) per motherboard manual — this is the fiddliest step.
Step 8: First boot
Connect display to GPU (not motherboard), power on. Enter BIOS (usually Del or F2 at startup). Enable XMP/EXPO to run RAM at its rated speed. Set boot device to your NVMe drive. Install OS.
How to pick
- Gaming-focused? Prioritize GPU — it drives 80%+ of gaming performance. Pair it with a mid-range CPU.
- Content creation / video editing? CPU and RAM matter more. Ryzen 9 or Core i9 with 64 GB RAM is worth it.
- On a tight budget? Ryzen 5 7600 + RX 7600 hits 1080p high settings for most games well under $600 in parts.
- Not sure what cooler to get? The stock AMD cooler is acceptable for non-X CPUs. For anything with an X suffix or Intel K-series, get a ~$40–$60 aftermarket tower cooler (DeepCool AK400, be quiet! Pure Rock 2).
Common mistakes
Not checking PCPartPicker compatibility. PCPartPicker flags incompatible RAM speeds, CPU cooler clearance, and case fitment. Use it. It's free.
Under-specing the PSU. A low-wattage or cheap PSU can damage other components. Use at least 80+ Bronze and buy from reputable brands (EVGA, Corsair, Seasonic, be quiet!).
Forgetting to enable XMP/EXPO. Without it, DDR5 runs at its stock slow speed (4800 MT/s) instead of the kit's rated speed (5600–6400 MT/s). Enable in BIOS on first boot.
Installing GPU power to motherboard header. A few boards have a motherboard-side GPU power connector for monitoring. GPU power goes to the GPU directly from the PSU — don't confuse the connectors.
Not cable-managing before first boot. You'll want to re-open the case later. Route cables behind the motherboard tray from the start.
What to skip
- Liquid cooling on a first build unless you enjoy the added complexity — a good air cooler performs within 5–10°C of a 240mm AIO at lower cost and more reliability.
- RGB everything — it costs ~$30–$50 extra per component for light. Use that money on a GPU tier bump.
- A sound card — modern motherboard audio is excellent for 99% of use cases.
FAQ
How long does a PC build take?
First build: 3–5 hours including cable management. Second build: 2 hours. The process is methodical, not fast.
Do I need Windows pre-installed?
No. Buy a USB drive, download the Windows 11 Media Creation Tool on another PC, create a bootable installer, and activate with a key after installation. Keys run ~$20–$30 from authorized resellers.
What wattage PSU do I need?
RTX 4070 / RX 7700-tier GPU with a mid-range CPU: 750 W is comfortable. RTX 5080 / RX 9700 XT and above: 850 W. Don't cheap out here.
Can I reuse parts from an old build?
Case, PSU (if still within 5–7 years and a reputable brand), and storage yes. CPU and RAM only if they match the new platform (they usually won't).
Where to go next