HP EliteDesk 800 Hardware Reference Manual page 92

9. To install a hard drive, you must transfer the silver and blue isolation mounting guide screws
from the old hard drive to the new hard drive.
10. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into
the bay, then slide it forward until it stops and locks in place.
84 Chapter 3 Small Form Factor (SFF) hardware upgrades ENWW