Fan speed on x440-48p at 11000 RPM

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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: Empty
Additionally, 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?
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Nathan Grist

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Posted 3 years ago

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Brandon Clay, Escalation Support Engineer

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Official Response
Hi Nathan,

Essentially, if the temperature is below 30C the switch will run its fans at half speed (or the fans will be off in the 24 port non-PoE variants of the X440). Once the temperature exceeds 30C, the fans will run at full speed. I've updated the article that Ryan linked earlier with the specifics for each X440 model.

https://gtacknowledge.extremenetworks.com/articles/Q_A/On-a-X440-the-fan-speed-is-always-listed-as-1...

-Brandon