Troubleshooting System Startup Failure; Troubleshooting External Connections; Troubleshooting The Video Subsystem; Troubleshooting A Usb Device - Dell PowerEdge C8000 Hardware Owner's Manual

• If the system does not power on, check the LED display. If the power LED
is not on, you may not be receiving AC power. Check the AC power cord to
make sure that it is securely connected.

Troubleshooting System Startup Failure

If your system halts during startup, especially after installing an operating
system or reconfiguring your system's hardware, check for invalid memory
configurations. These could cause the system to halt at startup without any
video output.
For all other startup issues, note any system messages that appear onscreen.
See "Using the System Setup Program" on page 55 for more information.

Troubleshooting External Connections

Ensure that all external cables are securely attached to the external
connectors on your system before troubleshooting any external devices. See
"Front-Panel Features and Indicators" on page 14 for the front-panel
connectors on the sled.

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.

Troubleshooting a USB Device

Use the following steps to troubleshoot a USB keyboard and/or mouse. For
other USB devices, go to step 5.
1 Disconnect the keyboard and mouse cables from the sled briefly and
reconnect them.
2 Connect the keyboard/mouse to the USB port(s) on the front of the sled.
3 If the problem is resolved, restart the system, enter the System Setup
program, and check if the nonfunctioning USB ports are enabled.
4 Replace the keyboard/mouse with another working keyboard/mouse.
If the problem is resolved, replace the faulty keyboard/mouse.
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Troubleshooting