Step 1: Unplugging
Step 2: Outer Shell/CasingStep 3: Outer Shell/Casing (cont.)Step 4: System FanStep 5: CPU FanStep 6: Power SupplyStep 7: CD/DVD Drive[s]Step 8: Card ReaderStep 9: Hard Drive & Portable Hard Drive SlotStep 10: Expansion CardsStep 11: Connectivity Center CablesStep 12: RAM (Random Access Memory)Step 13: Power Button & Power LED + HDD LEDStep 14: Connectivity CenterStep 15: Motherboard