PC upgrade checklist: what to keep and what to replace
Choose the task you want to improve, then compare two plans: keep the current platform or replace it. List the parts each option needs, check compatibility and work out the complete cost.
Checklist as text
You can select and copy this text manually. The list does not mark any checks as completed.
On this page
Define the problem and record your starting point
Write a concrete goal: shorten a video export, handle a larger project, or play at a chosen resolution and settings. Reproduce the problem in your normal workload. Slow loading, insufficient memory, and low frame rates call for different investigations; the CPU name alone does not determine the right purchase.
Record exact models for the CPU, motherboard and revision, memory kit, graphics card, drives, case, and power supply. A PSU brand and wattage are not a complete identity. Photograph accessible labels with the PC turned off; do not open the power supply. For a branded prebuilt, find the manual for the complete system as well.
Compare two complete upgrade paths
Make one plan that keeps the platform and changes as few parts as possible, and another that replaces the CPU, motherboard, and any required memory together. Compare complete working systems. A cheaper CPU may need a cooler or a BIOS update; a larger graphics card can also bring case and PSU costs.
For each plan, note the expected benefit and the evidence you need: a test of your application, your project requirements, or measurements in a relevant game. A universal bottleneck percentage cannot settle that decision. Keeping a component that already meets your needs can free money for a more useful change.
Resolve compatibility and pricing questions
Check CPU and BIOS support, memory generation, cooler mounting, graphics-card dimensions, and power connections separately. A prebuilt can have its own board, wiring, or enclosure restrictions, so do not assume every standard part fits. Missing information remains an open question for the manual or manufacturer.
Include shipping, taxes, and any service you actually need. An overseas price in dollars is a reference until you know the local checkout total. Before paying, match the exact item in the basket to your plan and review its included accessories and return conditions.
Keep both upgrade plans
Add your components to the builder and mark the ones you are keeping as owned. Enter local prices for new parts. Check BIOS requirements and any prebuilt-system restrictions separately. Save the first plan before comparing another platform.
Quick checklist
- Record a clear goal and the exact existing models.
- Check restrictions and the full price of each new part.
- Resolve open questions before ordering and save the build.
Check the parts you plan to keep
Add your current parts list and open it in the builder. Then try replacements one at a time and see how the compatibility result changes.
Documentation & sources
These are the documents used in this guide. Check your exact model’s specifications on its support page.