![](/images/backgrounds/288083/hp-compaq-presario-2800ap-notebook-pc-hardware-manual-15425024x1.png)
Identifying External Hardware
Labels
Underside Components: Labels1Microsoft Certificate of Authenticity label*
Contains your Product Key number.
You may need this information to update or troubleshoot the operating system.
2 | System label* | Provides regulatory information about |
|
| the notebook. |
|
|
|
3 | MultiPort agency approvals | Lists the countries in which the |
| label* (models that ship with | wireless device has been approved |
| a wireless device only) | for use. |
|
| You may need this information to use |
|
| the wireless device while traveling. |
|
|
|
4 | Serial number* | Identifies the notebook. You will need |
|
| this number if you call Compaq |
customer support or download software from the Compaq Web site.
*The appearance and position of labels varies by model.
Hardware Guide |