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P4500G2 Fans running full speed

KGradert
Occasional Visitor

P4500G2 Fans running full speed

We just got 2 4500G2s  in last week and sicne hooking them up, but not adding them to the cluster yet, the fans are running full speed.


The 2 G2s are putting out about double the noise of the previous G1s.  Any suggestions?

We don't want to add them to our existing cluster until we know f it's an issue or not.

 

I've got an open ticket, but since it took almost 3 hours on hold to even get that open, and they are now well over an hour past 4 hour response, I am not having much faith in being assisted today.

12 REPLIES
Jonathan_Aldred
Occasional Advisor

Re: P4500G2 Fans running full speed

I'm just opening a case for exactly the same problem!

What was your solution ?

 

Regards

Jonathan

lando_uk
Advisor

Re: P4500G2 Fans running full speed

Boot the nodes up with the latest smartstart dvd, run some diagnostics, see if you have any errors.

Jonathan_Aldred
Occasional Advisor

Re: P4500G2 Fans running full speed


lando_uk wrote:

Boot the nodes up with the latest smartstart dvd, run some diagnostics, see if you have any errors.



Unlike the original poster, I've noticed this problem is effecting only 1x node of a cluster of 4x nodes.

 

HP System Management Homepage reports nothing degraded and the ILO reports all fans running at 47% speed.

 

There are no error's/alerts in CMC too.

lando_uk
Advisor

Re: P4500G2 Fans running full speed

Fans also ramp up when the inlet temp senser hits a certain value,   our nodes went crazy once when one of our AC units failed. Check temps via the Hardware Information tab on the node, in the CMC.

R23422
Visitor

Re: P4500G2 Fans running full speed

Did you get anywhere with this?

 

We have 1 node of 4 with the same issue, all temps are fine and no errors anywhere. Just a lot of noise and accelerated wear and tear...Not sure I want to put it in production as is.

 

/Rob

Emilo
Trusted Contributor

Re: P4500G2 Fans running full speed

Run diagnostics.

Goto logs and download the firmware.log and note the bios and IMPI versions.

Also goto the systems management page and make sure it detects no issues.

 

 

Jonathan_Aldred
Occasional Advisor

Re: P4500G2 Fans running full speed

I called HP support in the end....

They got me to generate diag's in various different ways and after finding nothing wrong they sent an engineer to replace the motherboard.

That fixed the problem immediatley!

R23422
Visitor

Re: P4500G2 Fans running full speed

Ok,

 

I'm opening a case on this. The faulty node reports running at 47% fan speed (and the others at 50%) but from the sound of it, its at least twice the speed of the others.

 

Thanks for your time.

 

/Rob

Jonathan_Aldred
Occasional Advisor

Re: P4500G2 Fans running full speed

No problem

Sounds like exactly the same problem I found....

 

Good luck sorting it out :-)

 

 

Emilo
Trusted Contributor

Re: P4500G2 Fans running full speed

I am really convinced this is a bios issue.

Try this

Changing the value for the performance settings in BIOS resolved the fans running at high speed.

Enter the RBSU, select Power Management Options , HP Power Profile , set the value to different than Maximum Performance .

 

Jonathan_Aldred
Occasional Advisor

Re: P4500G2 Fans running full speed

Hi Emilio, Thats one of the many things HP asked me to check.

They also sent me photo's of the motherboard and asked me to remove all the jumpers on the J27 and J16 jumper blocks. (see attachment)

R23422
Visitor

Re: P4500G2 Fans running full speed

 

Emilio,

I have also checked the bios settings before posting and even tried to change them to maximum performance and back to see if it triggered anything but there was no difference. All bios settings and firmware versions are the same on all 4 nodes but only one behave like this. What finally convinced me of a problem with the fan speed sensors was that the system thinks the fans are running at 47% when they really are closer to 80%. Twice as loud as normal nodes running at 50%.

 

HP did not find anything either so they are replaceing the motherboard.

 

Appreciate your time though.

 

/Rob