Which of the following should you do before working on a computer? Before working on a computer, always turn the power supply unit’s (PSU) power switch off and unplug the power cable. Before touching anything in the computer, it is smart to connect a grounding cable or anything that removes static electricity to avoid frying components.
What should you do after you unplug the computer to be sure the power supply is completely drained? What should you do after you unplug the computer to be sure the power supply is completely drained? Press and hold down the power button for a moment.
What should be done after reassembling a laptop but before installing the battery or AC adapter? What should be done after reassembling a laptop, but before installing the battery or ac adapter? Before working inside your computer, save and close all open files, exit all available applications, and shut down your computer.
Which component may be considered a field replacement unit or FRU? Explanation: A field-replaceable unit (FRU), such as a motherboard, display, keyboard, or touchpad, commonly requires some technical skill to install.