HP Pavilion a400 HP Pavilion Desktop PCs - (English) Users Guide 5990-6416 - Page 108

before opening the pc, after closing the pc

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• 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 cable 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 cable 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. after closing the pc To avoid injury and equipment damage, always follow this procedure in this order after closing the PC: 1 Reconnect the power cable and all other attached cables (such as the keyboard, mouse and monitor). 2 Reconnect the modem/telephone cable. 3 Turn on the PC and all peripherals. 4 If you installed an add-in card, install any software drivers supplied by the card manufacturer. 100 user's guide

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100
user’s guide
•
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 cable 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 cable 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.
after closing the pc
To avoid injury and equipment damage, always follow this procedure in this
order after closing the PC:
1
Reconnect the power cable and all other attached cables (such as the
keyboard, mouse and monitor).
2
Reconnect the modem/telephone cable.
3
Turn on the PC and all peripherals.
4
If you installed an add-in card, install any software drivers supplied by the
card manufacturer.