HP DL380e G8 fan noise

I bought an used HP DL380e G8 and installed at my home. I'm a little bit confused about the fan noise. ILO says, they running at 37%-47%, but the noise is like they running at 70%.

On Youtube there is a video showing a DL380 G8 which is less loud after booting up than mine - tuning down the fans when OS started.

ILO says, I have one peak temp (71°C) at sensor 30-PCI-2 - I guess nearby the RAID P420 card? All other temps are around 20-30°C.

Hardware is: 2x E5-2430L v2, 12x 8GB DDR3, P420 RAID in slot 2, some non-HP harddisks (which are deteced by ILO and proven "Status OK"), an additional Broadcom NetXtreme in slot 4. Firmware is up-to-date (ILO 2.70 May 07 2019)

Can anyone tell me, why fans at 40% are loud as running at 70% or are those ILO-numbers wrong?

And a second question: I installed an additional HP PCIe NIC (4port) in slot 3, but neither BIOS or Debian-OS are seeing it.

Solution 1:

Simple answer.

Your use of non-HPE disks is a cause because they're not reporting proper temperatures to the RAID controller.

The ILO controls thermal settings on this platform and the hysteresis curves that govern fan speeds.

I commissioned the work of a developer who wrote a machine-language hack that exposes ILO fan controls to the SSH command line. This will allow you to manually cut your fan speed.

Have fun. This will allow the use of the hardware you already have.

Solution 2:

Servers are loud. They are designed to operate in data centers where noise isn't an issue. When running a server at home (I do as well), you'll need to expect them to be very loud and plan accordingly.

Server fans are optimized for performance. Desktop fans on the other hand are designed for a compromise of performance and sound.

Your fans are probably working just fine. Place the server in your basement, garage, or a closet (pay attention to the ventilation/cooling) and you'll be fine.