topic Re: Firmware 33.3.1.4-patch1-4 X435 - Reports High Temperature in ExtremeSwitching (EXOS/Switch Engine)

Firmware 33.3.1.4-patch1-4 X435 - Reports High Temperature

WillH_SRCDS — Thu, 26 Jun 2025 14:24:20 GMT

We recently upgraded to the 33.3.1.4-patch1-4 for our X435 switches. Immediately after install and reboot, the switch reports temperatures at 83C. When downgraded, the temp goes back down to 38-42C. This happens with each one of them.

Has anyone else seen this? We don't think the switches are overheating and is possibly a false report (multiplying the temp by 2?) however, seeing 15C off boiling makes us nervous.

Re: Firmware 33.3.1.4-patch1-4 X435 - Reports High Temperature

Christoph — Mon, 30 Jun 2025 13:05:35 GMT

Hi,

we are facing the same issue.

May I ask, what was the firmware before the update?

Regards
Christoph

Re: Firmware 33.3.1.4-patch1-4 X435 - Reports High Temperature

WillH_SRCDS — Mon, 30 Jun 2025 19:18:49 GMT

Version 31.4.1.12 for the most part. A few (10) had 30.5.0.259. We have about 110 of these and they are all reporting this high of a temperature after the install of 33.3.1.4-patch1-4.

Will

Re: Firmware 33.3.1.4-patch1-4 X435 - Reports High Temperature

Gabriel_G — Wed, 02 Jul 2025 13:46:08 GMT

There were some changes made to temperature readings and average values made in the 30.X and 31.7 area for the x435.

As long as the switch is in the 'normal' range in 'show temperature', I would say that this is OK and is likely a difference in how the temperature values are being reported, not necessarily that anything is actually changing temperature or environment wise.

If you are getting alerts for high temperature, or if the temperature is exceeding the normal range, I would open a case with GTAC to investigate further.