HP Pavilion a400 HP Pavilion Desktop PC - (English) Users Guide PAV SEA/ANZ/IN - Page 112

opening and closing the pc

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opening and closing the pc preparing the pc Read the following items before attempting to upgrade or service the PC: • These procedures assume familiarity with the general terminology associated with personal computers and with the safety practices and regulatory compliance required for using and modifying electronic equipment. • Write down and save the system model and serial numbers, all installed options, and other information about the system. It will be easier to consult this information than to open up and examine the PC. • HP recommends that you use an antistatic wrist strap and a conductive foam pad when working on the system. WARNING: Always disconnect the modem cord from the telephone system, and then disconnect the PC from the power source before removing the front and side panels of the PC. Failure to do so before you open the PC or do any procedures can result in personal injury or equipment damage. before opening the pc To avoid injury and equipment damage, always follow this procedure in this order before opening the PC: 1 Remove any media from the drives. 2 Turn off the PC and all peripherals. 3 Disconnect the modem/telephone cable. 4 Disconnect the power cord and all other attached cables (such as the keyboard, mouse, and monitor). WARNING: Please read "Safety Information" in the beginning of this document before installing and connecting your system to the electrical power system. 104 user's guide

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104
user’s guide
opening and closing the pc
preparing the pc
Read the following items before attempting to upgrade or service the PC:
•
These procedures assume familiarity with the general terminology associated
with personal computers and with the safety practices and regulatory
compliance required for using and modifying electronic equipment.
•
Write down and save the system model and serial numbers, all installed
options, and other information about the system. It will be easier to consult
this information than to open up and examine the PC.
•
HP recommends that you use an antistatic wrist strap and a conductive foam
pad when working on the system.
WARNING: Always disconnect the modem cord from the telephone
system, and then disconnect the PC from the power source before
removing the front and side panels of the PC. Failure to do so
before you open the PC or do any procedures can result in personal
injury or equipment damage.
before opening the pc
To avoid injury and equipment damage, always follow this procedure in this
order before opening the PC:
1
Remove any media from the drives.
2
Turn off the PC and all peripherals.
3
Disconnect the modem/telephone cable.
4
Disconnect the power cord and all other attached cables (such as the
keyboard, mouse, and monitor).
WARNING: Please read “Safety Information” in the beginning of
this document before installing and connecting your system to the
electrical power system.