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NOTE:
Some components are not eligible for Customer Self Repair and must be returned to HP for service.
Call support for further instructions before attempting to remove or repair these components.
Blink or beep codes: interpreting POST diagnostic lights and audible codes
If the power button light or the power supply light on the computer is blinking or if you hear beeps, see the
Maintenance and Service Guide (English only) for interpretation and recommended action.
Basic troubleshooting
For basic troubleshooting tips, read this section.
WARNING!
board. To reduce the risk of personal injury from electric shock, hot surfaces, or both, be sure to disconnect
the power cord from the wall outlet and allow the internal system components to cool before you touch them.
If you have problems with the computer, try the appropriate solutions as described in the previous sections
and summarized here to try to isolate the exact problem before you call for technical support.
If the screen is blank, plug the monitor into a different video port on the computer if one is available, or
●
replace the monitor with a monitor that you know is functioning properly.
If your monitor is connected with a cable adapter (for example, DP-to-DVI adapter), replace the adapter
●
with one that you know is functioning properly.
If you are working on a network:
●
Use a different network cable to connect your computer to the network.
–
Connect a different computer with a different cable to the network.
–
If your problem is not resolved, the network jack on your computer or the network wall jack might be
faulty.
If you recently added new hardware, remove the hardware.
●
If you recently installed new software, uninstall the software.
●
If a USB storage device is connected to the computer, disconnect the device.
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If the computer will turn on but the operating system will not start, run the preboot diagnostics utility,
●
HP PC Hardware Diagnostics.
HP Support
This section outlines the different ways to contact HP support.
Online support
Online support resources include web-based troubleshooting tools, technical knowledge databases, driver
and patch downloads, online communities, and product change notification services.
The following websites are also available to you:
http://www.hp.com—Provides useful product information.
●
http://www.hp.com/support—Provides the latest online documentation, worldwide technical support,
●
and access to software and drivers for computers.
When the computer is plugged into an AC power source, voltage is always applied to the system
SeeUsing HP PC Hardware Diagnostics on page 24
.
If you encounter issues
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Table of Contents
Troubleshooting
