Huge difference in noise level between ML350 G5 and ML370 G5

[Matthias Haenggi]

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

[Iron_Ferrier]

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

[KarloChacon]

the ml370 g5 has proliant support pack installed?

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

regards

[Matthias Haenggi]

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

Thanks,
Matthias

[KarloChacon]

do it again but remember they are servers not PCs

regards

[Ryan Goff]

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.

[Peter Karle]

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.

[Matthias Haenggi]

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

[Peter Karle]

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

[Matthias Haenggi]

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