Dell PowerEdge 4300 Dell PowerEdge 4300 Systems Installation and Troubleshooti - Page 90

1. Touch an unpainted metal surface on the computer chassis, such as the power supply, before touching anything inside the computer. 2. Turn off the computer and all peripherals. 3. If you are working inside the computer, wait until the STANDBY_LED indicator on the system board is off before adding or removing components or connecting or disconnecting cables from the system board. 4. Disconnect the computer, peripherals, and power supplies from their electrical outlets. Also disconnect any telephone or telecommunication lines from the computer. Doing so reduces the potential for personal injury or shock. 5. While you work, periodically touch an unpainted metal surface on the computer chassis to dissipate any static electricity that might harm internal components. 6. Never place conductive objects such as tools, metal pens, or screws on the system board. In addition, Dell recommends that you periodically review the safety instructions at the front of this guide. When following the procedures in this guide, assume that the locations or directions relative to the computer are as shown in Figure 7-1. back of computer left side right side front of computer 7-2 Dell PowerEdge 4300 Systems Installation and Troubleshooting Guide