# Troubleshooting: SCSI Backplane Components

The SCSI backplane component is a circuit board containing sockets into which other circuit boards can be plugged in, including SCSI disk drives.

> CAUTION: Do not attempt to service the system except as explained in the documentation. Only trained service technicians should remove the system cover to access any of the internal components. Refer to the documentation for your server for complete safety information before attempting to service your system.

Visually Inspecting Your System

Improperly set controls and loose or improperly connected cables are common causes of problems with hardware components. When investigating a system problem, first check all the external switches, controls, and cable connections. If this does not resolve your problem, then visually inspect the system's interior hardware for problems such as a loose card, cable connector, or mounting screw. Refer to Visual System Inspection for instructions about how to verify that your hardware components are properly installed.

Troubleshooting the Backplane Component

Following are possible causes of problems with the backplane component:

- System Power

Related Topics

Troubleshooting the Service Processor