Build Compatibility Checker
Enter your parts below to quickly check whether your CPU, motherboard, RAM, case dimensions, and power supply are likely to work together.
How this PC compatibility calculator helps
Building a custom computer is exciting, but one incompatible part can turn your project into a frustrating return-and-refund cycle. This calculator gives you a quick, practical screening of the most common compatibility issues before you buy parts.
It is not a replacement for detailed manufacturer documentation, but it is a fast first-pass check that catches many mistakes early.
What the calculator checks
1) CPU socket vs motherboard socket
Your processor must physically fit the motherboard socket. For example, an AM5 CPU cannot be installed in an AM4 board, and Intel LGA1700 is not interchangeable with LGA1851.
2) RAM generation support
Motherboards are typically designed for one memory generation. DDR4 and DDR5 are physically different and not cross-compatible on standard boards. Matching memory type to motherboard support is essential.
3) Motherboard size vs case support
Form factor determines whether your motherboard can mount in your chosen case. If your case supports only up to Micro-ATX, an ATX board will not fit even if every other component is perfect.
4) GPU clearance
Modern graphics cards can be very long. The calculator compares your card length against the case’s maximum GPU clearance to avoid fitment problems near front fans or radiators.
5) CPU cooler clearance
Air coolers often fail builds because of side-panel height limits. Entering both cooler height and case maximum cooler clearance helps avoid this common issue.
6) PSU headroom
Even if a power supply can technically run the system, low headroom can cause instability during transient load spikes. This calculator flags builds with limited overhead and recommends a safer margin.
Interpreting your result
- Compatible: No major conflicts were found.
- Compatible with warnings: The build can work, but one or more items may reduce reliability, upgrade flexibility, or thermal performance.
- Not compatible: At least one hard conflict exists and should be fixed before purchase.
Best practices for accurate part matching
Always confirm with official specs
Retail listings can contain mistakes. Use motherboard manuals, case spec sheets, and PSU labels as the final source of truth.
Plan for future upgrades
If you are choosing between two PSU sizes, the higher wattage unit with good efficiency can provide better future support for GPU upgrades.
Account for accessories
Front radiators, drive cages, and cable routing can reduce available GPU space. If your card is close to the limit, leave extra clearance.
Limitations of this quick calculator
This tool focuses on primary compatibility checks. It does not currently evaluate BIOS version support, VRM quality, memory QVL validation, PCIe lane sharing, fan header count, connector type specifics (like 12VHPWR adapter requirements), or radiator thickness conflicts.
For mission-critical builds, always perform a second-pass detailed validation before ordering parts.
Final thoughts
A successful PC build is mostly about reducing uncertainty. A compatibility workflow—first with a quick calculator and then with spec-level validation—can save money, time, and stress. Use this tool early in your planning process and refine from there.