computer disassembly/assembly (Dell Optiplex 745)

This video shows how to open a Dell Optiplex 745 (Small Form Factor), and remove and replace the following components:
- Hard drive
- DVD drive
- Power supply
- Video card
- Heat sink
- CPU
- RAM
- Battery
A few things were done before this video to simplify the process:
- Unscrewed the power supply from the case.
- Unscrewed the heat sink cover from the motherboard.
- Disconnected and removed a ribbon cable from the motherboard to the front panel circuit board.
- Cut a secondary wire from the power supply to the motherboard.