Hello,

I suggest you to keep updated BIOS and iDRAC.
Then Fans speed depends also from the temperature of the environment, and from the charge of CPU.

Dell T140 it is a server, not a workstation, so the noise shouldn't be an issue as it is not made to work in quiet environments.

Thanks

Marco

Did you check that iDRAC firmware and BIOS are at the latest version?

Of course it is a server, but fans spin almost at the max speed regardless the CPU load and room temperature.

Shutting down the guest OS, so reducing almost to zero the load has no effect and no effect also changes in room temperature.

The only way to reduce the speed is to reboot the T140. This solves temporary the proble and after some days \ one week the problem again happears.

I already updated the relevant firmwares.

ok thanks

Hello

im having a similar issue.

Latest Firmware/Bios installed.

What i can see if a card is in the PCIe x16 slot the FAN dont go below 70% PWM.

When the same card is in the slot nearest to the CPU i have only around 15% PWM.

The card is an x8 grafics card, just for clarification. With an Intel 10G X540 x8 card this is not the case. FAN stays on 15% PWM.

And this is not about the noise. This is about lifetime. A FAN running at 70% (without need) will fail earlier.

Hi

in between i found the following post:

https://www.dell.com/community/Power-Cooling/How-Do-I-Disable-The-Third-Party-PCIe-Card-Default-Cooling/m-p/8089455

And there the following document is referenced:

https://downloads.dell.com/manuals/common/poweredge_pcie_cooling.pdf?dgc=SM&cid=243907&lid=spr5980176755&RefID=dtw22_sm5980176755&linkId=142128143

Which seems to be the solution.

Hi,

Slot 2 : x16 PCIe Gen3 for FH/HL from CPU (x8 lanes)  -> This isn’t for the VGA. And you have a non Dell part so that’s for the abnormal speed. Try without the card, see if the speed is still the same.

Hello Group,

Recently my T140 started having the same issue. Out of nowhere the fan starts screaming while the Server is sitting rather idle and not under load.

The fan has always run at a low speed for the last 3-years. The only way I can get it to stop is to reboot the Server, but this is always a temporary solution. It can go several hours / days / weeks on low then the fan starts spinning its little head off loudly.

I have vacuumed out the unit, but there was not a large accumulation of dust to start with.

The fact that its intermittent makes me wonder if a part is failing like a temperature control unit or thermostat. I just don't know what it is and the Dell Support website was no help.

The fact that a reboot temporarily resolves the issue is puzzling.

Any help would be greatly appreciated.

Thank you,

Dwight

DwightDM,

The first thing I would look at is if the server is up to date on BIOS, iDrac, and raid controller. The reason I ask is that the idrac is the device that controls fan speed, so if it is behind I would look at addressing that first. If that doesn't resolve the issue then you may be correct that something is failing, or possibly it is environmental (such as airflow), so you may want to take the server to its minimum to post configuration and see if you can recreate the issue under that configuration, if not then you can add the removed devices back until the issue reappears, identifying the cause. 

Minimum to post for the T140 is removing everything from the server internally and externally except the following;

● Processor
● One memory module (DIMM) in socket A1
● One power supply unit
● System board

Let me know what you see.