Calling Technical Support - HP xw series Setup And Troubleshooting Manual

Table 4-3 Diagnostic lights and audible codes (continued)
Activity
* Some workstation models (such as the xw4550) do not have the BIST LED functionality. * For BIST information, see the
Service and Technical Reference Guide.

Calling technical support

At times you might encounter an issue that requires technical support. When you call technical support:
● Have your workstation readily accessible.
●
Write down the workstation serial numbers, product numbers, model names, and model numbers
and have them in front of you.
●
Note any applicable error messages.
●
Note any add-on options.
●
Note the operating system.
●
Note any third-party hardware or software.
●
Note the details of any blinking LEDs on the front of the workstation.
● Note the applications you were using when you encountered the problem.
●
Note the power supply BIST status, if applicable.
NOTE: When calling in for service or support, you might be asked for the Product Number (example:
PS988AV) of your workstation. If your workstation has a Product Number, it is generally located next to
the 10- or 12-digit Serial Number of your workstation.
NOTE: Refer to
of the Serial Number label on your workstation. On most models, the serial number and product number
label are located at the rear of the workstation.
For a listing of all worldwide technical support phone numbers, visit http://www.hp.com/support, select
your region, and click Contact HP in the upper-left corner.
32 Chapter 4 Troubleshooting
Possible cause
Ventilation, COA label, and serial number label information on page 9
Recommended action
If the power supply fan does not spin or the BIST* LED does not light, the
problem might be in the power supply. Contact HP for assistance.
for the location
ENWW