Locating ID labels
To assist in troubleshooting, product, serial, and authentication numbers are available on each
computer.
●
All workstations have a serial number (unique for each workstation) and product number. Have
these numbers available when you contact support.
●
The Certificate of Authentication (COA) is used only for systems with Windows 7 preinstalled.
●
The Genuine Microsoft Label (GML) is used only for systems with Windows 8 preinstalled.
●
A service label shows the build ID and Feature Byte strings, which are needed for system board
replacement.
The all-in-one service label can be found in the location shown in Figure 4-1 (pull-out card).
Figure 4-1
All-in-one service label location
Locating warranty information
To locate base warranty information, see
http://www.hp.com/support/warranty-lookuptool
.
To locate an existing Care Pack, see
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.
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Chapter 4 Diagnostics and troubleshooting
