Safety warning before working on the computer

[Aloke]

Hi everybody, I am having an Samsung desktop computer. I want know that, is there any safety warning before working on the system. If is something is there then tell what are they?

[Computer_Freak]

Recommendations

• Please Do not go inside the cabinet or do some other work on your computer, if you are not feeling comfortable that what you are doing with you computer. The meaning of this content to help you and make you feel more at ease with many general computer operations by maximizing your understanding power, however there are no meaning of shame in deciding by which a provided procedure are more than you feel like tackling.
  
• If your computer is under the warranty. Then you realize that many of the companies will going to void your warranty of your system if you had open the system during the warranty time. If you are going to open the cabinet and see there are any plastic seals whcih state "warranty void if broken", then that is a one of the best hint that this applies to you :^)
  
• Remove the system plug. Try to do not work on a computer, in any condition, while it is plugged in. You do not only turn off the computer and whcih you are thinking it is enough. I had see few people which they recommend that you leave the computer plugged in to and you have to confirm that it stays grounded.
  
• I had also told by one of technician's experience, where he get an electric shock by touching a modem, and the modem in the computer that had the current wire unplugged, but the phone wire are still connected to the modem. It is prudent to remove all external cables and wires from the computer before opening it up.
  
• Keep a distance from the power supply if dont you know that what are you going to do. If there is anywhere in the PC box that you are most likely to hurt yourself, it is here. And also, please do not try to open a cover of your monitor if you are not confirm that what are you doing. You can also electrocute yourself even through the power cord are disconnected when inside the monitor.
  
• Please do not tight the screws to much or you may strip them which makes it impossible to unscrew them later. Avoid to using the screws which are longer than around 1/8" at the time mounting drives which is having a risk damaging the data storage areas of the drive