HP dx2250 - Microtower PC Troubleshooting Manual page 14

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 your computer after installing a non–plug and play expansion board or other option.
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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 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:
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.
8 Chapter 2 Troubleshooting
When the computer is plugged into an AC power source, there is always voltage
ENWW