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Free — real-time validation, no account

PC part compatibility checker

Add parts to the PlanMyPC builder and every component is validated against the rest in real time — CPU socket, motherboard form factor, RAM support, power-supply wattage, and case clearance across 32 categories — so you catch conflicts before you buy.

How do I check PC part compatibility?

Add your parts to a build tool that validates them together. PlanMyPC's free compatibility checker verifies CPU socket, motherboard form factor, RAM type, power-supply wattage, and case clearance in real time and flags any conflict before you buy — no account needed.

Prefer to check by hand first? Will these PC parts work together? walks through all eight checks and the exact specs to compare.

What the compatibility checker validates

Six checks run automatically as you build. Each conflict is explained in plain language.

CPU ↔ motherboard socket

Confirms the processor's socket (e.g. AM5, LGA1700) matches the motherboard, and that the board's chipset supports the chip.

Motherboard form factor ↔ case

Checks that the board size (ATX, mATX, Mini-ITX) fits inside the selected case's supported form factors.

RAM type, speed & capacity

Validates DDR4 vs DDR5, supported speeds, module count against available DIMM slots, and total capacity limits.

Power supply wattage

Estimates total system draw from your CPU and GPU and flags a PSU that lacks the headroom your build needs.

GPU & cooler clearance

Compares graphics-card length and CPU-cooler height against the case's clearance limits so nothing physically collides.

Live conflict warnings

Any incompatibility surfaces immediately with a plain-language explanation, before you spend a cent.

How to check PC part compatibility in 5 steps

  1. 1

    Open the system builder

    Go to the PlanMyPC system builder. No account or sign-up is required to start a build.

  2. 2

    Add your CPU

    Pick a processor. This sets the required socket, which every later part is validated against.

  3. 3

    Add a compatible motherboard

    The builder filters to boards that match your CPU's socket and chipset, then checks form factor against your case.

  4. 4

    Add RAM, GPU, PSU and case

    As you add memory, a graphics card, a power supply, and a case, PlanMyPC validates RAM type, wattage headroom, and physical clearance in real time.

  5. 5

    Review the compatibility summary

    Any conflict is flagged with a clear reason. Resolve warnings, check each part's price and the build total, then save or share your finished build.

Compatible and affordable

Once your build passes every compatibility check, PlanMyPC shows each part's price from the retailers we track and adds up your build total — so the parts that fit together also fit your budget.

Explore PlanMyPC

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Frequently asked questions

How do I check PC part compatibility?

Add your parts to a build tool that validates them together. PlanMyPC's free compatibility checker verifies CPU socket, motherboard form factor, RAM type, PSU wattage, and case clearance in real time and flags any conflict before you buy.

Is the PlanMyPC compatibility checker free?

Yes. Real-time compatibility checking is completely free, with no premium tier and no account required. You can validate a full build and compare prices without signing up.

Does it check if my CPU and motherboard are compatible?

Yes. The checker confirms the CPU socket matches the motherboard (for example AM5 or LGA1700) and that the board's chipset supports your processor before you add anything else.

Will it tell me if my power supply is powerful enough?

Yes. PlanMyPC estimates your build's total power draw from the CPU and GPU and warns you if the selected power supply lacks enough wattage headroom for stable operation.

Can it check RAM and case clearance too?

Yes. It validates RAM type (DDR4 vs DDR5), speed and slot count, and compares GPU length and CPU-cooler height against your case's clearance limits so parts physically fit.

Check your build for free

Real-time compatibility, a running build total, and a shareable link — no account needed.