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Check all cable connections for loose connections or incorrect connections.
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Wake the computer by pressing any key on the keyboard or pressing the power button. If the system
remains in suspend mode, shut down the computer by pressing and holding the power button for
at least four seconds then press the power button again to restart the computer. If the system will
not shut down, unplug the power cord, wait a few seconds, then plug it in again. The computer will
restart if automatic start on power loss is set in Computer Setup. If it does not restart, press the
power button to start the computer.
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Reconfigure the computer after installing a non–plug and play expansion board or other option.
See
Solving Hardware Installation Problems on page 237 for instructions.
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Be sure that all the needed device drivers have been installed. For example, if you are using a
printer, you need a driver for that model printer.
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Remove all bootable media (diskette, CD, or USB device) from the system before turning it on.
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If you have installed an operating system other than the factory-installed operating system, check
to be sure that it is supported on the system.
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If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed
(embedded video on some models only) and a single monitor, the monitor must be plugged into
the monitor connector on the source selected as the primary VGA adapter. During boot, the other
monitor connectors are disabled and if the monitor is connected into these ports, the monitor will
not function. You can select which source will be the default VGA source in Computer Setup.
CAUTION: When the computer is plugged into an AC power source, there is always voltage applied
to the system board. You must disconnect the power cord from the power source before opening the
computer to prevent system board or component damage.
218 Appendix D Troubleshooting Without Diagnostics