Start with the exact model
Look for the full model or service-tag information on the case, in Windows System Information or on the manufacturer's support page. A family name alone is not enough: two desktops sold under the same family can use different power supplies, motherboards and cases.
The six checks that matter
- Motherboard support: confirm the CPU socket, chipset and the manufacturer's supported-processor list.
- Power connectors: some OEM motherboards use proprietary connectors instead of standard 24-pin ATX power.
- Power capacity: check the PSU's rated output and the connectors required by the exact graphics card.
- Physical space: measure graphics-card length and thickness, cooler height and available drive bays.
- Memory: match the DDR generation, supported capacity and module type. Desktops normally use full-size DIMMs.
- Case and motherboard shape: an unusual motherboard or front-panel connector can make a standard case swap difficult.
Do not assume a normal-looking part is standard
A prebuilt can use a normal PCIe slot but a custom power supply, or standard RAM but a motherboard with limited firmware support. Treat every verified match separately. Unknown dimensions or connectors should be a warning, not a guessed green result.
Best first upgrades
An SSD can improve loading and everyday responsiveness. More RAM can reduce stuttering when memory is actually full. A GPU can make the largest gaming difference when power and clearance are verified. Replace several platform parts together only when the old motherboard, CPU or proprietary design makes a single-part upgrade poor value.
Enter my current PC and check upgrade options →