System Hardware Installation - 22 -
Pre-installation Instructions
Computer components and electronic circuit boards can be damaged by discharges of static 
electricity. Working on computers that are still connected to a power supply can be extremely  
dangerous. Follow the simple guidelines below to avoid damage to your computer or injury to 
yourself.
•  Always disconnect the  computer from  the power  outlet whenever  you are  working inside  the 
computer case.
•  If  possible, wear a grounded wrist strap when you are working inside the computer case. 
Alternatively, discharge any static electricity by touching the bare metal system of the computer 
case, or the bare metal body of any other grounded appliance.
•  Hold electronic  circuit  boards  by the  edges only.  Do  not  touch  the  components  on the  board 
unless it is necessary to do so. Do not ex or stress the circuit board. 
•  Leave all components inside the static-proof packaging until you are ready to use the component 
for the installation.
Chapter 3  System Hardware Installation