Temperature / fans X440-G2

[tcheurby]

Hello,
I'm trying to deploy an X440-G2 switch but I meet a problem with the equipment

When I plug in an AP 7522 for example, after 5min I have the fans racing and making a monster noise, with a temperature rising up (I only have two ports plugged in on the switch) another POE equipment causes the same thing... This is the first time I have deployed an X440 switch, has anyone ever meet this problem?
Switch faulty?
I am in version 22.7.1.2, I was able to find on the Hub similar topics but that indicated that they were fixed with a version 22.7.1.2.

Thank for your help

LIB-SWITCH.57 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 15120 RPM
Fan-2: Operational at 15240 RPM
Fan-3: Operational at 15240 RPM
Fan-4: Operational at 15300 RPM

LIB-SWITCH.57 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X440G2-24p-10G4 92.94 Normal 0 10-100 110


LIB-SWITCH.58 # show lldp neighbors

Neighbor Neighbor Neighbor
Port Chassis ID Port ID TTL Age System Name
===============================================================================
8 E4:B9:7A:5A:AC:DA E4:B9:7A:5A:AC:DA 3601 587 Not-Advertised
9 84:24:8D:85:35:04 ge1 180 52 LIBAP
===============================================================================
NOTE: The Chassis ID and/or Port ID might be truncated to fit the screen.

LIB-SWITCH.59 # show version
Switch : Rev 09 BootROM: 1.0.1.8 IMG: 22.7.1.2
PSU-1 : Internal Power Supply
PSU-2 :

Image : ExtremeXOS version 22.7.1.2 by release-manager
on Thu Jul 11 23:31:11 EDT 2019
BootROM : 1.0.1.8
Diagnostics : 5.12
Certified Version : EXOS Linux 3.18.123, FIPS fips-ecp-2.0.16


If i unplug AP75xx the noise stop instantly :

LIB-SWITCH.86 # show fans (NO POE device plug)
Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2160 RPM
Fan-3: Operational at 2160 RPM
Fan-4: Operational at 2160 RPM

[FredrikB]

I can verify that an X440G2-48p-10G4 I have access to runs the fans quite high despite being very warm or loaded. This is on 22.5.1.7 patch 1-9, probably released before the fix was introduced to 30.3.1.6 or 22.7.x.x.

This is what I see in a normally cooled cross connect room:

a192a.1 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X440G2-48p-10G4 61.50 Normal 0 10-100 110
a192a.2 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 7680 RPM
Fan-2: Operational at 7680 RPM
Fan-3: Operational at 7680 RPM
Fan-4: Operational at 7680 RPM

Temp shows at 61.5 C and fans rather high but not crazy high. Temp is probably measured on the CPU or the exhaust and hence not showing anything near room temp. In your first post, it said 92.94 C, which would seem very off, probably because of software.

Would you say that the temp now is on par with the temp when the lines in the first post were recorded?

Incidentally, here is from an X450G2-48p's running 22.7.1.2 in a room with, say 23 C temp:

a123a.1 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
--------------------------------------------------------------------------------
Switch : X450G2-48p-10G4 74.00 Normal 0 10-100 110
a123a.2 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 6
PartInfo: 1523N-43310 800560-00-03
Revision: 03
Fan-1: Operational at 3120 RPM
Fan-2: Operational at 6420 RPM
Fan-3: Operational at 3120 RPM
Fan-4: Operational at 5940 RPM
Fan-5: Operational at 3120 RPM
Fan-6: Operational at 6060 RPM

Some variation in fan speeds! It seems the individual fans keep their speed, so they don't fluctuate (more than some 20-80 rpm per fan), at least not within the few minutes I've monitored them. PoE power is 55 W right now.

/Fredrik

[tcheurby]

Hello,

Thank you all for your feedback.
I confirm that the bug is fixed with the firmware version: 30.3.1.6.

The temperature still shows me high levels but the fans no longer make any noise.

Thank you

* LIB-SWITCH.1 # show version
Switch : 800616-00-09 1709N-41430 Rev 09 BootROM: 1.0.1.8 IMG: 30.3. 1.6
PSU-1 : Internal Power Supply
PSU-2 :

Image : ExtremeXOS version 30.3.1.6 by release-manager
on Fri Aug 30 15:36:50 EDT 2019
BootROM : 1.0.1.8
Diagnostics : 5.12
Certified Version : EXOS Linux 4.14.123, FIPS fips-ecp-2.0.16

Build Tools Version : exos-mips-sdk-2.5.3.1.0



* LIB-SWITCH.4 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2100 RPM
Fan-3: Operational at 2100 RPM
Fan-4: Operational at 2160 RPM


* LIB-SWITCH.5 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 68.50 Normal 0 10-100 110


-----------------------

* LIB-SWITCH.19 # show lldp neighbors

Neighbor Neighbor Neighbor
Port Chassis ID Port ID TTL Age System Name
===============================================================================
7 E4:B9:7A:5A:AC:DA E4:B9:7A:5A:AC:DA 3601 341 Not-Advertised
9 B4:2D:56:8C:55:1C ge1 180 58 ap7632-8C551C
11 74:67:F7:D1:AC:0A ge1 180 21 ap7622-D1AC0A
===============================================================================
NOTE: The Chassis ID and/or Port ID might be truncated to fit the screen.

* LIB-SWITCH.20 # show fans

Slot-1 FanTray information:
State: Operational
NumFan: 4
Fan-1: Operational at 2160 RPM
Fan-2: Operational at 2160 RPM
Fan-3: Operational at 2100 RPM
Fan-4: Operational at 2100 RPM
* LIB-SWITCH.21 # show temperature
Field Replaceable Units Temp (C) Status Min Normal Max
------------------------------------------------------- --------- ------- --- ------- ---
Switch : X440G2-24p-10G4 83.17 Normal 0 10-100 110
* LIB-SWITCH.22 #

[AntonS]

I had almost the same case a year ago, but it was not detected then. Would have saved me a lot of headache.
But finally with new release it should be fixed

[Drew_C]

I verified the fix is in EXOS v30.3.1 (expected today or tomorrow). It only affects X440-G2-24p-10GE4 models.
It should also be in a 22.7 patch soon (probably not Patch 1-3).

[Ronald_Dvorak · Accepted solution]

Sounds like this issue.....
https://gtacknowledge.extremenetworks.com/articles/Solution/Fan-Speed

• When providing PoE to fewer than 6 devices, the fan speed on X440-G2 PoE models rises to over 15,000 RPM.
• Upon exceeding 6 connected PoE devices, the fan speed begins to fall back to normal levels.

Thx to @Anton Sax for working together with the GTAC on this issue....
https://community.extremenetworks.com/extremeswitching-exos-223284/x440-g2-24p-fan-speeds-7771046#po...

-Ron