HP Apollo 4200 Gen9 Maintenance And Service Manual page 118

CAUTION: Any attempt to remove an installed TPM from the system board breaks or disfigures
the TPM security rivet. Upon locating a broken or disfigured rivet on an installed TPM,
administrators should consider the system compromised and take appropriate measures to ensure
the integrity of the system data.
If you suspect a TPM board failure, leave the TPM installed and remove the system board. Contact an HP
authorized service provider for a replacement system board and TPM board.
DRAFT - HP Confidential - DRAFT
Removal and replacement procedures 118