Dell OptiPlex G1 - Manual (Page 3)

Removing and Replacing Parts: Dell OptiPlex GX1 Systems Service Manual
file:///C|/infodev/2013/eDoc/OpGX1/SM/remsff.htm[2/21/2013 11:45:32 AM]
Precautionary Measures
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 20 ).
Internal Views
Figure 1 shows a top view of the chassis to help you orient yourself when you work inside the computer.
Figure 1. Orientation View
1 System board
2 Diskette drive
3 Hard-disk drive
4 CD-ROM drive
5 Power supply