HP ProLiant Gen8 Troubleshooting Guide Volume I: Troubleshooting

Hardware problems 53
3.
Be sure hot-plug fan requirements are being met. Refer to the server documentation.
All fans in an HP BladeSystem c-Class enclosure are operating at a high speed
...while fans in the other enclosures are operating at normal speed.
Action:
If all fan LEDs are solid green but the fans in the enclosure are operating at a higher speed than normal, then
access more information from the OA or HP iLO. Review the FAN section in OA SHOW ALL to locate the fan
zone that is consuming more FAN speed. Verify the virtual FAN value for the affected servers within that FAN
zone that indicates which server is consuming a lot of FAN speed. Possible indicators could be either an
outdated ROMBIOS or HP iLO firmware or a server repeatedly going through POST or reboot.
If a single fan is operating at approximately 80% and the issue is resolved after resetting the OA, then
upgrade to OA firmware 3.60 or later to resolve the issue.
For more information, review the HP BladeSystem c-Class Enclosure Troubleshooting Guide on the HP
website (http://www.hp.com/go/bladesystem/documentation).
HP Trusted Platform Module problems
HP Trusted Platform Module fails or is not detected
Action: If the TPM fails and is no longer detected by RBSU or UEFI System Utilities, request a new system
board and TPM board from an HP authorized service provider. For more information, see "Contacting HP
technical support or an authorized reseller (on page 92)."
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.
When installing or replacing a TPM, observe the following guidelines:
• Do not remove an installed TPM. Once installed, the TPM becomes a permanent part of the system
board.
• When installing or replacing hardware, HP service providers cannot enable the TPM or the encryption
technology. For security reasons, only the customer can enable these features.
• When returning a system board for service replacement, do not remove the TPM from the system board.
When requested, HP Service provides a TPM with the spare system board.
• 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.
• When using BitLocker™, always retain the recovery key/password. The recovery key/password is
required to enter Recovery Mode after BitLocker™ detects a possible compromise of system integrity.
• HP is not liable for blocked data access caused by improper TPM use. For operating instructions, see the
encryption technology feature documentation provided by the operating system.