Ibm 2193 Manual do Utilizador descarregar pdf (Página 107)

Preparing to upgrade

7-5

Opening the system unit

Each time you open your system unit, you must follow specific safety procedures to

ensure that you do not damage your computer.

Taking safety precautions

Before you open the system unit, review “Safety information” on page xiii.

For your safety and the safety of your equipment, follow these steps before you

remove the system unit cover:

1. If your computer is on or in any of the power-saving modes, shut down the

computer.

2. Turn off the computer and any attached devices that have their own power

switches.

3. Unplug all power cables from electrical outlets.

4. Disconnect all communication cables (such as modem or network cables)

from communication outlets.

5. Disconnect all cables and cords from the computer; this includes power

cords, signal cables from external devices, communication cables, and any

other cables attached to the computer.

6. Proceed to the next section for instructions on removing the cover.

Removing the top cover

Follow these steps to remove the system unit top cover:

Note:

See “Taking safety precautions” on page 7-5 to

disconnect the cables before you perform the

following steps.

1 2 ... 102 103 104 105 106 107 108 109 110 111 112 ... 213 214

Sem comentários

Ibm 2193 Manual do Utilizador Página 107