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Customer self repair, Other troubleshooting options, Customer self repair other troubleshooting options – HP Z620 Workstation User Manual

Page 62

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Plug the monitor into a different video port on the computer if one is available. Alternatively,

replace the monitor with a monitor that you know is working properly.

Verify that the computer

and monitor are plugged into a working electrical outlet.

Verify that the monitor is turned on and the green monitor light is on.

Turn up the brightness and contrast controls of the monitor if the monitor is dim.

If the internal display on an all-in-one computer is blank, open the computer and make sure the

graphics card is properly installed.

Upgrade the BIOS. A new release of the BIOS might have been released that supports new

features or fixes your problem.

For more detailed information, see the troubleshooting chapter in the

Maintenance and Service

Guide at

http://www.hp.com/support/workstation_manuals

.

Customer self repair

Under the Customer self repair program, you can order a replacement part and install the part without

onsite HP technical assistance. Customer self repair may be required for some components. See

http://www.hp.com/go/selfrepair

for information on the program.

NOTE:

Some components are not eligible for customer self-repair and must be returned to HP for

service. Call HP Support for further instructions before attempting to remove or repair these

components.

Other troubleshooting options

The following additional troubleshooting techniques and tools are located in the

Maintenance and

Service Guide at

http://www.hp.com/support/workstation_manuals

:

POST Error Codes

Diagnostic LEDs and audible beep codes

Troubleshooting scenarios and solutions

HP Vision Diagnostics (Z420, Z620, Z820)

HP PC Hardware Diagnostics (Z220 SFF and Z220 CMT)

54 Chapter 8 Diagnostics and Minor Troubleshooting