Dell Special catalog for DOD, NSA, CIA

General Discussion
19

This is perhaps more accurate/up-to-date for many systems:
https://www.dell.com/community/Precision-Mobile-Workstations/Precision-5520-XPS-15-otherboard-replacement-enable-management/td-p/7376698

And:
https://www.coursehero.com/file/pg2p2f/b-WARNING-Technicians-must-key-in-the-correct-Service-Tag-on-the-first-and-only/