Before starting computer disassembly, make sure you have the tools you need and they're all close by and handy.

The first thing to do before working on your PC Disassembly is unplug every cable that is connected to you computer.

In PC Assembly, the first step is to "Prepare Your Workplace". Which is NOT included?

When attaching hardware and peripherals of the computer, it is not important the proper locations  of connection or port of the peripherals.

In connecting peripheral devices to your PC. What is the first step you should do?