Precautionary Measures; Internal Views - Dell OptiPlex GX1 Service Manual

Removing and Replacing Parts: Dell OptiPlex GX1 Systems Service Manual

Before you perform any procedures in this manual, take a few moments to read the following caution for your

personal safety and to prevent damage to the system from ESD.

CAUTION: FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT

Before you start to work on the system, perform the following steps in the sequence listed:

1. Turn off the computer and all peripherals.

2. Disconnect the computer and peripherals from their AC power sources. Also, disconnect any

telephone or telecommunication lines from the computer. Doing so reduces the potential for

personal injury or shock.

3. If you are disconnecting a peripheral from the computer or are removing a component from the

system board, wait 10 to 20 seconds after disconnecting the computer from AC power before

disconnecting the peripheral or removing the component to avoid possible damage to the

system board.

4. Wear a wrist grounding strap, and clip it to an unpainted metal surface, such as the padlock loop

on the back of the chassis. If a wrist grounding strap is not available, touch any unpainted metal

surface on the back of the computer or on the computer chassis, such as the power supply, to

discharge any static charge from your body before touching anything inside the computer.

While you work, periodically touch an unpainted metal surface on the computer chassis to

dissipate any static electricity that might harm internal components. Also avoid touching

components or contacts on a card and avoid touching pins on a chip.

5. Verify that the auxiliary power indicator on the riser board is not on. If it is on, you may need to

wait 10 to 30 seconds for it to go out (see

Figure 1 shows a top view of the chassis to help you orient yourself when you work inside the computer.

Figure 1. Orientation View

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Figure

20).

1 System board

2 Diskette drive

3 Hard-disk drive

4 CD-ROM drive

5 Power supply