Fan speed on x440-48p at 11000 RPM

[Nathan_Grist]

I have a stack of Summit x440-48p switches running XOS 15.3.4.6 patch1-14. They are in a sizable cabinet in a standard office area and I would have thought the temperature and fans would be normal, but the fans are all at 11000 RPM for both switches:
sh fans

FanTray-1 information: State: Operational NumFan: 4 Fan-1: Operational at 11000 RPM Fan-2: Operational at 11000 RPM Fan-3: Operational at 11000 RPM Fan-4: Operational at 11000 RPM FanTray-2 information: State: Operational NumFan: 4 Fan-1: Operational at 11000 RPM Fan-2: Operational at 11000 RPM Fan-3: Operational at 11000 RPM Fan-4: Operational at 11000 RPM FanTray-3 information: State: Empty FanTray-4 information: State: Empty FanTray-5 information: State: Empty FanTray-6 information: State: Empty FanTray-7 information: State: Empty FanTray-8 information: State: EmptyAdditionally, the temp of the switches is:
sh temperature Field Replaceable Units Temp (C) Status Min Normal Max --------------------------------------------------------------------------- Slot-1 : X440-48p 34.50 Normal -10 0-48 55 Slot-2 : X440-48p 34.00 Normal -10 0-48 55 Slot-3 : Slot-4 : Slot-5 : Slot-6 : Slot-7 : Slot-8 :While 92 F or so is not cool, it seems well below the Normal range about 24 degrees F. Is it normal for these fans to be so noise and at 11000 RPMs at this temp?

[Nathan_Grist]

That is helpful in understanding how the x440 switch works, but I think the issue in my case is actually that the fans are on full speed and it's loud as it's deployed near office work space in a closed cabinet that just so happens to be hot enough to make them spin faster. What temp does it have to be below for the fans to run quietly...it seems to be around 34C, is that right?

[Ryan_Mathews]

The 440 is a little unique in how it manages its fans....

Here's a GTAC Knowledge Article that provides an explanation:
https://gtacknowledge.extremenetworks.com/articles/Q_A/On-a-X440-the-fan-speed-is-always-listed-as-1...