Dell 1955 Troubleshooting External Connections, Troubleshooting the Video Subsystem, Problem

Troubleshooting External Connections

Loose or improperly connected cables are the most likely source of problems for the system, monitor, and other peripherals (such as a printer, keyboard, mouse, or other external device). Ensure that all external cables are securely attached to the external connectors on your system. See Figure 1-3 for the front-panel connectors on your system and Figure 1-5 for the back-panel connectors.

Troubleshooting the Video Subsystem

Problem

•Monitor or monitor cable

•Keyboard/video/mouse (KVM) custom cable

•KVM module

•Server module

Action

1Ensure that the server module(s) is turned on.

2Check the monitor connection to the custom cable.

Try swapping monitor cables if another monitor cable is available.

3Check the custom cable connection to either the front-panel custom-cable connector on the server module or the back-panel KVM module.

4If the monitor does not function from the back-panel KVM module, ensure that the KVM selection indicator on the front panel of the server module is green. If not, press the KVM selection button. See Figure 1-3.

NOTE: See "KVM Modules" on page 22 for instructions on how to select a server module from the keyboard connected to the KVM module.

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Troubleshooting Your System