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Power regulator for Proliant not supported on BL 20p G3?

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Ole Thomsen_1
Trusted Contributor

Power regulator for Proliant not supported on BL 20p G3?

I get an error stating that "Host system does not support Power Regulator for Proliant" on my BL20p G3's.

Server BIOS, iLO and enclosure firmware are all the latest and greatest.

I tried to change the RBSU to power save mode, no difference.

Did I miss something?
3 REPLIES
Rob Leadbeater
Honored Contributor
Solution

Re: Power regulator for Proliant not supported on BL 20p G3?

Hi,

I'm guessing that you're running processors slower than 3.4GHz in your server.

If that is the case then the PowerRegulator features probably won't work. I've had it confirmed by support, after seeing the same issue on some DL380G4s, that the documentation is incorrect.

CPUs slower than 3.4GHz don't have the required Enhanced SpeedStep feature in order to make the Power Regulator work.

See the following URL on Intel's site:
http://www.intel.com/support/processors/xeon/sb/cs-012641.htm

You can also find a processor ID facility here on Intel's site:
http://www.intel.com/support/processors/tools/piu/

which will tell you whether your CPU has got the Enhanced SpeedStep feature.

I asked hp Support whether it would be possible to update the BIOS/iLO such that the options weren't available on machines where the CPU didn't support the feature... hopefully this will get sorted in iLO > 1.70.

Cheers,

Rob
Rob Leadbeater
Honored Contributor

Re: Power regulator for Proliant not supported on BL 20p G3?


and typically when I check for the latest version of iLO which has just gone to 1.75, the release notes state:

http://h18000.www1.hp.com/support/files/server/us/download/22745.html

"Updated to correctly disable options on iLO Power Regulator web page on servers that do not Support Dynamic Power Regulation."

Cheers,
Rob
Ole Thomsen_1
Trusted Contributor

Re: Power regulator for Proliant not supported on BL 20p G3?

My servers are 3.2GHz, that must be why this feature is not available.

Funny that this is not mentioned anywhere in the HP docs.