Good afternoon, Kuia!
The return policy for the CPU and Motherboard is 15 days from the date of purchase. Please keep in mind that the CPU and Motherboard must be clean and with no damage to them (no bent pins, not covered in thermal paste, etc).
As for the fans and RAM, the return policy is 30 days from the date of purchase. Same thing applies, must not have any damage.
As long as your items fall into those requirements, you should not have any issues either returning or exchanging them in store. Please also include any accessories and documentation that came with the items, as well as the packaging if you still have it.
I would recommend speaking to a sales associate to ensure we get you the items you need for your build :)
Hope this helps!
Submit photos and a description of your PC to our build showcase
See other custom PC builds and get some ideas for what can be done
Services starting at $149.99