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 preinstalled with Windows.
●
A service label shows the build ID and Feature Byte strings, which are needed for system board
replacement.
In general (tower and desktop configuration), these labels can be found in the top, rear or bottom of
the chassis (your workstation might look different).
Figure 4-1 Tower and desktop label locations
Locating ID labels
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