Packard Bell MH4000 manual Upgrades and Options

5-2

Caution: Electrostatic discharge (ESD) and ESD

protection. ESD can damage disk drives, boards, and other parts. This system can withstand normal levels of environmental ESD while you are hot-swapping SCSI hard drives or hot-swapping a failed fan module or power supply. However, we recommend that you do all procedures in this chapter only at an ESD workstation. If one is not available, provide some ESD protection by wearing an antistatic wrist strap attached to chassis ground⎯any unpainted metal surface⎯on your system when handling parts.

Caution: ESD and handling boards. Always handle boards carefully. They can be extremely sensitive to ESD. Hold boards only by their edges. After removing a board from its protective wrapper or from the system, place it component-side up on a grounded, static-free surface. Use a conductive foam pad if available but not the board wrapper. Do not slide board over any surface.

Caution: Internal support panel, proper cooling

and airflow. To prevent damage to the system board from partially inserted processor/memory board and to provide proper cooling and airflow, always install the internal support panel for the processor/memory board before installing the chassis side and top covers and turning on the system. Operating the system without this support panel in place can damage system parts.

Upgrades and Options