A little compressed air goes a long way. Nobody wants to buy a "dust bunny" disguised as a motherboard.
Your old parts are essentially "store credit" for your new build. By taking 20 minutes to clean, photo, and list them on a reputable site like PayMore , you can significantly offset the cost of your hobby. buy my computer parts
For heavy items like cases or monitors, Facebook Marketplace or Craigslist are great to avoid shipping costs. A little compressed air goes a long way
Always perform a "secure erase" before selling to protect your data. 2. Where to Sell Your Parts buy my computer parts