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Jochem

​ HP Microserver gen 8 fan speed - all you need to know

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tezray

Hi tezray,

Maybe there is some misunderstanding. You explain that iLO shows the HD-Max sensor. That means that at least one of your drives in the B120i has a SMART 194 temperature attribute. So, thats good. Problably the drive you added when you got down to 19% (from 29%) has this attibute. It seems you cannot get it better with your setup. Maybe the inlet temp + all the hard drives generating heat lead to the 19% fan speed.

Thanks I think you are right when I close the cupboard doors or the room is warmer than usual the fan goes back to 29 percent. The 2x 3tb hard drives are a recent change ilo shows them running very hot in idle something like 40c can't remember now but the seagate 25c and the western digital was 35c so maybe the best I will ever get.

 

Sent from my SM-G935F using Tapatalk

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Shonk

I run in ahci mode and my fan is 9% most of the time

7% on a cold day

11% on a warm day

 

its running at 9% this second in the uk

 

its also running a 1240 v2 16gb of ram, and has 20 drives (9 internal) and a pci-e card

 

 

"If anything misses, fan speed management starts around 14%", this includes missing the  (use of the) B120i controller

Edited by Shonk
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Jochem

I run in ahci mode and my fan is 9% most of the time

Interesting. This is the first post about AHCI mode combined with low fan speed i see, but maybe i missed something. Please prescribe exactly your BIOS, iLO, PCI-card & OS combination. I'm sure many people would like to reproduce this. I assume you don't use any hacked software, like the BIOS, nor modified the internals with fans and the like.

Also:

  • Does iLO show a HD-max value?
  • Does iLO show a PCI 1 value?
Edited by Jochem

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Shonk

 

Interesting. This is the first post about AHCI mode combined with low fan speed i see, but maybe i missed something. Please prescribe exactly your BIOS, iLO, PCI-card & OS combination. I'm sure many people would like to reproduce this. I assume you don't use any hacked software, like the BIOS, nor modified the internals with fans and the like.

Also:

  • Does iLO show a HD-max value?
  • Does iLO show a PCI 1 value?

 

 

 

It's down to inlet temps

21 Inlet 11%

20 Inlet 10%

19 Inlet 9%

17 Inlet 7%

 

Exhaust doesnt seem to be that inportant

21 Inlet 36 Exhaust = 11%

19 Inlet 47 Exhaust = 9%

 

https://s5.postimg.org/oj9kqbbyv/Untitled.jpg

Untitled.jpg

Edited by Shonk

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Jochem

It's down to inlet temps

Strange. According to multiple postings, others have high fan speeds with any inlet temp (me too) when there is no HD Max sensor. You have no HD Max sensor and low fan speeds, so why?

Which iLO version are you using, is it by accident the old hacked version? 

Edited by Jochem

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Shonk

I have access to 4 microserver's

 

1265L v2 16GB

1240L v2 16GB

Stock 16GB

Stock 10GB

 

all perform in the same manner

apart from 2014 models spin down the fan straight away after load

2015 models have a delay of 2 mins or so

 

I have always run the latest bios / ilo there's nothing hacked

the 2013 bios / ilo  had a bug with ahci

the one's from the last 2 years have been fine

 

 

Here's my primary server at the moment

https://s5.postimg.org/s5fe2yic7/Untitled3.jpg

Untitled3.jpg

 

 

Here's my backup server at the moment

https://s5.postimg.org/ezzvwuogn/Untitled2.jpg

 

Untitled2.jpg

Edited by Shonk

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Shonk

To show they are in ahci mode

 

Untitled4.jpg

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Jochem

To show they are in ahci mode

Ok. It's clear that in your case the HD max sensor is not needed for low fan speeds. You are running Windows and the one difference is see is the avaiability of the LOM sensor. Maybe the LOM sensor "compensates" the lack of the HD Max sensor. Or maybe the AMS driver works differenlty. Hard to tell. Anyhow, this info is not incorporated in my write-up above. Thanks for your feedback. I wonder if other Windows users have the same succes as you have?

Edited by Jochem

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scorpi2ok2

I am using linux and my fan goes down when inlet temps is low.

I'm not using the B120i controller. I'm using  an IBM M1015.

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Jochem

I am using linux and my fan goes down when inlet temps is low.

I'm not using the B120i controller. I'm using  an IBM M1015.

How low, and can you post your sensor & temp values please?

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