I just replaced the motherboard in a Dell Inspiron 1440. The last step in the Dell Service Manual is to enter the correct Service Tag within BIOS. When I started it up and hit F2 and the section with the service tag could not be changed. Is there another way of changing the service tag to the correct one. How to Find Motherboard Manufacturer, Model, Serial Number, and Version in Windows A motherboard is the main printed circuit board (PCB) used to connect all the parts of a computer together. The CPU, memory, hard drives, and other ports and expansion cards all connect to the motherboard directly or via cables.
Motherboard Serial Number Location
When performing a motherboard swap in an HP system, to ensure proper system functionality, the system IDs will need to be reprogrammed from the product SKU label(s) on your system.
Usage is pretty straightforward and you simply choose your drive from the drop down box, enter the new serial number and click the Change button. Do note the serial number format as mentioned in the window is made up of 8 hex characters from 0-9 and A-F split by a “-” into two groups of 4. You will then need to reboot to commit the changes.
Entering the BIOS/UEFI on your replacement HP system board and then going to system IDs will normally only reveal three or four fields, instead of the full 7 or more fields you may need to populate.
Windows Motherboard Serial Number
To access the additional system ID fields, when going to the sub-menu that has “system ID”, hit CTRL-A before entering the system ID section to expose the additional fields.