HP dx7510 Service Reference Guide: HP Compaq dx7510/dx7518 Business PC - Page 95

When the computer is plugged into an AC power source, there is always voltage applied

Page 95 highlights

● 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. ● 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: 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. Helpful Hints 87

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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.
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:
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.
Helpful Hints
87