Locating Id Labels - HP Z230 Maintenance And Service Manual

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
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these numbers available when you contact support.
The Certificate of Authentication (COA) is used for systems with Windows 7 preinstalled.
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The Genuine Microsoft Label (GML) is used for systems with Windows 8 preinstalled.
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A service label shows the build ID and Feature Byte strings, which are needed for system board
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replacement.
In general, these labels can be found on the top, rear, or bottom of the chassis (tower and desktop
configuration). Your computer might look different from the illustration.
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