# Changing HP motherboard system IDs

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 <span class="caps">SKU</span> label(s) on your system.

Entering the <span class="caps">BIOS</span>/<span class="caps">UEFI</span> 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.

To access the additional system ID fields, when going to the sub-menu that has “system ID”, hit **<span class="caps">CTRL</span>-A** before entering the system ID section to expose the additional fields.

[http://h30434.www3.hp.com/t5/Desktop-Hardware/invalid-electronic-serial-number-after-motherboard-swap-out/td-p/1403105](http://h30434.www3.hp.com/t5/Desktop-Hardware/invalid-electronic-serial-number-after-motherboard-swap-out/td-p/1403105)