The inside of your computer has gotten very dusty and you’ve decided to clean inside of the case. What’s the first thing you should do?
A) Attach an anti-static strap to the computer case
B) Remove the computer case screws
C) Power off the computer and disconnect the power source
D) Power off the computer, but keep the power source connected to provide an electrical ground
Answer: C) Power off the computer and disconnect the power source
When working around electrically powered devices, one of the most important safety considerations is to completely power down the systems and remove the connection to the power source.
The incorrect answers:
A) Attach an anti-static strap to the computer case
Although it’s important to take anti-static precautions when working inside of a computer, your personal safety should be the first thing you should consider.
B) Remove the computer case screws
The case screws can be removed after all power sources have been disconnected.
D) Power off the computer, but keep the power source connected to provide an electrical ground.
It’s not necessary to have an electrical ground to protect against static electricity damage. If you’re connected to power, there’s always a risk of electrocution. Minimize your risk and disconnect that power cord!
 |
Want to know more? Watch “Keeping Things Clean.”Preventive maintenance of your computers is an essential component of the CompTIA A+ certification. In this module, we’ll show you how to clean both the outside and the inside of your computer, including the monitor, fan intakes, motherboard components, and connector contacts. |