topic Re: Huge difference in noise level between ML350 G5 and ML370 G5 in ProLiant Servers (ML,DL,SL)

Huge difference in noise level between ML350 G5 and ML370 G5

Matthias Haenggi — Thu, 12 Jul 2007 01:43:13 GMT

Dear all,

Recently, we had a ML350 G5 for test purposes in our office. I noticed that this box was extremely quiet compared to a ML370 G5. Is that possible? Or are there any options to lower to noise level of a ML 370 G5 (i.e. low fan speed profile etc.)?

Many thanks.

Kind regards,
Matthias

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Iron_Ferrier — Thu, 12 Jul 2007 06:04:12 GMT

Yes, i think this is possible.
If you compare the architecture of the both server you will see, that the ML370 G5 have a "center wall" fan cage with up to 6 fans. The ML350 G5 has not such a "center wall", it has a fan assembly an a headsink for cooling instead.

http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00710498/c00710498.pdf

http://www.icare.hp.com.cn/TechCenter_StaticArticle/33838/38889.pdf

Re: Huge difference in noise level between ML350 G5 and ML370 G5

KarloChacon — Thu, 12 Jul 2007 10:10:13 GMT

the ml370 g5 has proliant support pack installed?

http://h18023.www1.hp.com/support/files/server/us/download/27210.html

regards

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Matthias Haenggi — Thu, 12 Jul 2007 10:31:41 GMT

yes, the newest support pack is installed. But in the meantime, I got some fixes etc. Should I reinstall the support pack?

Thanks,
Matthias

Re: Huge difference in noise level between ML350 G5 and ML370 G5

KarloChacon — Thu, 12 Jul 2007 10:43:43 GMT

do it again but remember they are servers not PCs

regards

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Ryan Goff — Thu, 12 Jul 2007 11:40:05 GMT

Fan speed is controlled by the hardware not by drivers, so the fans will run at the default low speed regardless of the support pack being installed or not.

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Peter Karle — Fri, 13 Jul 2007 07:38:21 GMT

You also may want to take a look at the system setup ("F9" at boot). There's an option to set the standard fan speed.

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Matthias Haenggi — Fri, 13 Jul 2007 07:49:33 GMT

Can you tell me where I can find this option? I checked already but found something like "Dynamic Power Regulator" only. There was no specific setting for the fans.. Many thanks!

Kind regards, Matthias

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Peter Karle — Fri, 13 Jul 2007 07:57:40 GMT

RBSU (F9) --> Advanced Options --> Fan Speed

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Matthias Haenggi — Fri, 13 Jul 2007 08:39:46 GMT

Sorry, I do not have this option: "RBSU (F9) --> Advanced Options --> Fan Speed". Is this setting available for the G5 series as well?

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Peter Karle — Fri, 13 Jul 2007 09:32:56 GMT

I'm sorry, my fault!
The RBSU for G5 servers doesn't have this feature any more...
P.S.: Bist du aus der Schweiz?

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Matthias Haenggi — Fri, 13 Jul 2007 09:35:03 GMT

OK - thanks. So no chance to reduce the noise level.. :-(

PS: ja, nÃ¤he Basel

Re: Huge difference in noise level between ML350 G5 and ML370 G5

Peter Karle — Fri, 13 Jul 2007 10:05:46 GMT

Ok, dann schreib ich mal schnell auf D.
So ein ML370 ist natÃ¼rlich nochmal ein Pfund mehr als ein DL350. Er muss zur Not auch mehr leisten. Er hat deshalb ein anderes Layout und auch andere LÃ¼fter.
Das er dadurch lauter ist, kommt fast zwangslÃ¤ufig. Aber er steht ja eher selten in einem Wohnzimmer...
Liebe GrÃ¼Ã e aus D, Peter