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.
Locating ID labels
To assist in troubleshooting, product, serial, and authentication numbers are available on each
workstation.
Each HP Workstation has two unique serial number labels
and a Certificate of Authentication (COA)
label
2
as shown in the figure below.
Figure 11-1 Workstation label locations
In general, the serial number labels can be found on the top panel or on the side of the workstation and
at the rear of the workstation (your workstation may look different). Keep this number available when
contacting customer service for assistance.
A product number is generally located next to the serial number.
The COA is used for Windows-preinstalled systems only, and is generally located on the top panel or
side of the workstation near the serial number label. On some workstations it is located on the bottom
of the workstation.
Locating warranty information
To locate base warranty information, visit http://www.hp.com/support/warranty-lookuptool or refer to
the Documentation and Diagnostics CD that shipped with your workstation.
To locate an existing Care Pack, visit
http://www.hp.com/go/lookuptool.
To extend a standard product warranty, visit
http://www.hp.com/hps/carepack. HP Care Pack Services
offer upgraded service levels to extend and expand a standard product warranty.
60 Chapter 11 Diagnostics and troubleshooting ENWW
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