HP Dc5800 Quick Setup and Getting Started Guide Enhanced for Accessibility - Page 24

Solving Hardware Installation Problems, Solving General Problems continued, Add Hardware, Wizard

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Table 1 Solving General Problems (continued) System does not power on and the LEDs on the front of the computer are not flashing. Cause Solution System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: 1. Check that the voltage selector, located on the rear of the power supply on some models, is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Remove the expansion cards one at a time until the 5V_aux light on the system board turns on. 3. Replace the system board. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: 1. Check that the unit is plugged into a working AC outlet. 2. Open hood and check that the power button harness is properly connected to the system board. 3. Check that both power supply cables are properly connected to the system board. 4. Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button harness. 5. If the 5V_aux light on the system board is off, then replace the power supply. 6. Replace the system board. Solving Hardware Installation Problems You may need to reconfigure the computer when you add or remove hardware, such as an additional drive or expansion card. If you install a plug and play device, Windows automatically recognizes the device and configures the computer. If you install a non-plug and play device, you must reconfigure the computer after completing installation of the new hardware. In Windows, use the Add Hardware Wizard and follow the instructions that appear on the screen. WARNING! When the computer is plugged into an AC power source, voltage is always applied to the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be sure to disconnect the power cord from the wall outlet and allow the internal system components to cool before touching. 16 Quick Setup & Getting Started

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Table 1
Solving General Problems (continued)
System does not power on and the LEDs on the front of the computer are not flashing.
Cause
Solution
System unable to power on.
Press and hold the power button for less than 4
seconds. If the hard drive LED turns green, then:
1.
Check that the voltage selector, located on
the rear of the power supply on some models,
is set to the appropriate voltage. Proper
voltage setting depends on your region.
2.
Remove the expansion cards one at a time
until the 5V_aux light on the system board
turns on.
3.
Replace the system board.
OR
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on
green then:
1.
Check that the unit is plugged into a working
AC outlet.
2.
Open hood and check that the power button
harness is properly connected to the system
board.
3.
Check that both power supply cables are
properly connected to the system board.
4.
Check to see if the 5V_aux light on the system
board is turned on. If it is turned on, then
replace the power button harness.
5.
If the 5V_aux light on the system board is off,
then replace the power supply.
6.
Replace the system board.
Solving Hardware Installation Problems
You may need to reconfigure the computer when you add or remove hardware,
such as an additional drive or expansion card. If you install a plug and play device,
Windows automatically recognizes the device and configures the computer. If
you install a non–plug and play device, you must reconfigure the computer after
completing installation of the new hardware. In Windows, use the
Add Hardware
Wizard
and follow the instructions that appear on the screen.
WARNING!
When the computer is plugged into an AC power source, voltage is
always applied to the system board. To reduce the risk of personal injury from
electrical shock and/or hot surfaces, be sure to disconnect the power cord from the
wall outlet and allow the internal system components to cool before touching.
16
Quick Setup & Getting Started