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D
Troubleshooting Without Diagnostics
Preliminary Checklist
This section describes some simple, preliminary tests and guidelines for troubleshooting the computer without using the diagnostics.
■Are the computer and monitor connected to a working electrical outlet?
■Is the voltage select switch is set to the appropriate voltage for your region (115V or 230V)?
■Is the computer turned on?
■Is the green power light illuminated?
■Is the monitor turned on?
■Is the green monitor light illuminated?
■Turn up the monitor brightness and contrast controls if the monitor is dim.
■If the system has multiple video sources (embedded, PCI, or
■Press and hold any key. If the system beeps, then the keyboard is operating correctly.
■Check all cables for loose or incorrect connections.
■Reconfigure the computer after installing a
■Are all of the necessary device drivers installed?
■Have all printer drivers been installed for each application?
■Remove all bootable media (diskette, CD, or USB device) from the system before turning on the system.
■Are all switches set correctly?
■Is the NIC Remote Wakeup cable (featured on some models) connected between the NIC and the riser/system board?
Service Reference Guide, dc7600 |
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