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DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

 
Lars Nilsson_1
Trusted Contributor

DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

I happened to see this maintenance message in the Integrated Management Log of a DL380 G5 server (running Novell NetWare 6.5):

"CPU(s) operating at reduced performance level due to a low power cap."

Does anybody know what it means and what should be done about it? No event was generated at the HP SIM CMS server. How do I know if the CPU is running at reduced performance at the moment?

I can't find any relevant information anywhere...

7 REPLIES
~sesh
Esteemed Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

It is possible that the Power regulator for Proliant has been enabled in System ROM (BIOS). You can use the RBSU (ROM Based Setup Utility) by pressing F9 during server boot.

Navigate to System Options | Power Regulator for Proliant. Select the appropriate setting for your environment.

Reboot the server.

Let me know if it helps.
~sesh
Esteemed Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

You can find the processor matrix for info on which processors support the power regulation mode at:
http://h18013.www1.hp.com/products/servers/management/ilo/sup_servers.html
Lars Nilsson_1
Trusted Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

Thank you very much for taking the time.
I will check the Power Regulator settings in the RBSU within the next week or so. (When I can schedule some downtime for this server).

I looked on the Power Management Settings tab in the iLO2 web interface which states that Power Regulator for ProLiant is in OS Control Mode. (Same option as Disabled in the RBSU setup).
Also Power Capping is Disabled.
KarloChacon
Honored Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

hi Lars

try updating the firmware for ilo

http://h18023.www1.hp.com/support/files/server/us/download/27419.html

there a Customer Advisory not too much related but

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01130986&jumpid=reg_R1002_USEN

regards
Didn't your momma teach you to say thanks!
KarloChacon
Honored Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

Hi again

oh I forgot also

System ROM
http://h18023.www1.hp.com/support/files/server/us/download/27752.html

regards
Didn't your momma teach you to say thanks!
Lars Nilsson_1
Trusted Contributor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

Hi Karlo - thanks for your effort

The iLO firmware is already the latest version (1.35)

I will upgrade the System ROM next weekend.

For what it's worth: The IML-message showed up almost exactly one week after a faulty PSU had been replaced...
JP Maurer
Occasional Visitor

Re: DL380 G5: CPU(s) operating at reduced performance level due to a low power cap.

I am also seeing this message in the HP ProLiant Integrated Management Log Viewer â I do not see it anywhere in the HP System Management Homepage â it appears at random, usually twice a month, sometimes once a month. I do not notice/experience any other problems with the server, it keeps on running fine. I have verified input power is a continually a clean 117Vac 60Hz

Server is running...
Microsoft Windows 2003 SP2
Microsoft Virtual Server 1.1.603.0 EE R2 SP1
HP Insight Management Agents 7.90.0.0
HP Array Configuration Utility 7.85.18.0
HP Array Configuration Utility (CLI) 7.85.18.0
HP Array Diagnostics Utility 7.85.16.0
HP Insight Diagnostics Online Edition 7.9.0.2359
ATI Radeon WindowsNT Miniport Driver 6.14.10.6606
Smart Array SAS/SATA Controller Storport Driver 6.8.0.32
HP ProLiant Smart Array SAS/SATA Event Notification Service 6.4.0.32
HP ProLiant Integrated Management Log Viewer 5.13.0.0
HP ProLiant Remote Monitor Service 5.11.3.0
Broadcom NetXtreme II GigE VBD 3.4.10.0
HP System Management Homepage 2.1.10.186
HP Version Control Agent 2.1.9.790
HP iLO Management Channel Interface Driver 1.12.0.0
HP Lights-Out Online Configuration Utility 1.5.1.1
HP ProLiant iLO 2 Management Controller Driver 1.4.0.0
HP High Precision Event Timer NULL INF 1.0.0.0
HP NULL IPMI Controller Driver 1.0.0.0
Compaq System ROM 2007.06.28
HP Smart Array P400 Controller 4.06
Compaq Remote Insight ROM 1.35

What is the resolution? or does it really indicate a problem with the... power supply?