Troubleshooting External Connections; Troubleshooting The Video Subsystem; Troubleshooting A Usb Device - Dell PowerEdge R415 Owner's Manual

Troubleshooting External Connections

Ensure that all external cables are securely attached to the external
connectors on your system before troubleshooting any external devices.
See Figure 1-1 and Figure 1-4 for the front- and back-panel connectors
on your system.

Troubleshooting the Video Subsystem

1 Check the system and power connections to the monitor.
2 Check the video interface cabling from the system to the monitor.
3 If two monitors are attached to the system, disconnect one monitor.
The system supports only one monitor attached to either the front or
rear video connector.
4 If the problem persists, see "Getting Help" on page 181.

Troubleshooting a USB Device

1 Use the following steps to troubleshoot a USB keyboard and/or mouse.
For other USB devices, go to step 2.
Disconnect the keyboard and mouse cables from the system briefly
a
and reconnect them.
Connect the keyboard/mouse to the USB port(s) on the opposite side
b
of the system.
If the problem is resolved, restart the system, enter the System Setup
program, and check if the nonfunctioning USB ports are enabled.
Replace the keyboard/mouse with another working keyboard/mouse.
c
If the problem is resolved, replace the faulty keyboard/mouse.
If the problem is not resolved, proceed to the next step to begin
troubleshooting the other USB devices attached to the system.
2 Power down all attached USB devices and disconnect them from the system.
150
Troubleshooting Your System