Spend your first PC build money in the right order

Pick the monitor first. Everything else follows from it.

That sounds backwards, and it's the single thing that keeps first-time builders from wasting money. A machine built to push 1080p at high frame rates is a different machine from one built for 1440p, and both are a long way from what 4K asks for. If you don't know which one you're aiming at, you'll buy a graphics card that's either strangled by the screen in front of it or gasping to keep up with it.

For most people, 1440p at a high refresh rate is the sweet spot. It looks noticeably sharper than 1080p, it doesn't demand the top of the graphics stack, and a good card will hold triple-digit frame rates in most titles for years. 4K is real and it's lovely, and it roughly doubles what the graphics card has to do. Decide honestly, then build to it.

Where the money should actually go

For a gaming machine, the graphics card is the single biggest lever on how the games feel. As a rule of thumb, it should take something like 35 to 45 percent of your total parts budget. Go much lower and you've built a beautiful box that stutters. Go much higher and you've starved the parts that keep it stable.

The processor comes next, and this is where most first builds overspend. A mid-range six or eight core chip from the current generation is enough for gaming, full stop. The halo processors exist for people compiling code, editing video, or streaming to an audience while they play. At 1440p and above, you're usually waiting on the graphics card anyway, so the extra money buys you frames you'll never see.

What's left covers memory, storage, the motherboard, power, cooling and the case. None of it is glamorous. All of it decides whether the thing runs quietly for six years or becomes a project you resent.

The parts people overpay for

Motherboards. The mid-tier chipset does everything a gaming PC needs. What you get by stepping up is more USB ports, more M.2 slots, faster networking and beefier power delivery for extreme processors. If you can name a feature you need, buy the board that has it. Otherwise the mid-range board with a decent heatsink layout is the right answer.

All-in-one liquid coolers. A good tower air cooler handles a mid-range processor without complaint, costs less, and has no pump to fail. Liquid makes sense for hot high-core-count chips or very tight cases. Check the cooler's height against your case's clearance before you order, because that mistake ends with a side panel that won't close.

Power supplies that are too big. Add up what your card and processor actually draw, leave sensible headroom, and buy a reputable unit with a long warranty from a brand with a service record. A well-built unit at the right wattage beats a no-name unit rated twice as high. If your graphics card uses the newer 12-pin connector, get a supply with that cable native rather than relying on an adapter, and seat it fully until it clicks.

Lighting and glass. Spend it if you want the machine to look like something. Just know you're buying looks, not frames. Airflow matters more than acrylic.

Gen 5 storage. A single fast Gen 4 NVMe drive loads games effectively as quickly as anything on the market right now. The newest standard costs more, runs hotter, and the difference in a game launch is measured in fractions of a second.

The parts people ruin their build on

Cheap power supplies. A failing unit can take other parts with it, and the ones with no warranty and no reviews are exactly the ones you don't want inside a machine that lives under your desk.

Storage that's too small. A modern game install can be enormous. One terabyte fills faster than you expect; two is the comfortable floor if the budget allows. And skip the spinning drive entirely for anything you play.

Too little memory. Sixteen gigabytes still works. Thirty-two is where you want to be if you keep a browser and a voice app open while you play, which everybody does.

The screen itself. Don't hang a strong graphics card off a bad panel. Look for variable refresh rate support so frames and refresh stay in sync, and an IPS panel unless you have a specific reason to want something else.

Check these before you click buy

• Socket and chipset match. The processor, motherboard and memory generation all have to agree. DDR4 memory doesn't go in a DDR5 board.
• Memory on the board's support list. Two sticks, not four, if you want the easiest time running them at rated speed.
• Graphics card length and cooler height against your case's published clearances. Big cards and small cases are a common and expensive surprise.
• Front panel connectors. If you want USB-C on the front of the case, the motherboard needs the internal header for it.
• The operating system. Budget for a legitimate license. If you're considering Linux, check first whether the competitive games you play allow it, because some anti-cheat systems don't.

Building it without drama

Put the processor, cooler and memory on the motherboard while it's out of the case and sitting on its own box. Everything is easier with room to work. When you drop the processor in, it goes one way only, lined up by the arrow in the corner. Don't force it, and don't touch the pins or the contact pads.

Memory goes in the second and fourth slots from the processor on most boards, and it takes more force than feels right. Press until both clips snap up.

Count your motherboard standoffs before the board goes in. A missing one leaves the board flexing; an extra one in the wrong place shorts it.

Plug in the eight-pin processor power cable at the top of the board. Forgetting it's the most common reason a first build doesn't post, and the second most common is plugging the monitor into the motherboard's video output instead of the graphics card.

When it boots, go into the BIOS and turn on the memory speed profile, EXPO or XMP depending on the platform. Out of the box your memory runs at a slow baseline, and leaving it there throws away performance you already paid for. Then install the chipset drivers and the current graphics driver before anything else.

On used parts and prebuilts

Used cases, used monitors and used peripherals are fine buys. Used graphics cards are a judgement call with no warranty behind it, so pay accordingly and test with a demanding game in the first week. Never buy a used power supply.

Prebuilt machines sometimes come out cheaper once you count the operating system, and if you have no interest in assembly, that's a legitimate choice. Read the spec sheet carefully. The savings usually hide in a vague power supply, slow memory and a case with no airflow.

A first build takes an afternoon and leaves you with a machine you can open, diagnose and upgrade for a decade. Which is why it's worth handing your son the screwdriver for the easy parts, and letting him be the one to press the button.