CRS326-24G-2S+RM > SWOS reporting above 60 C temp.

SwOS
1

So the ambient temperature where the switch is located is currently between 15 and 30 degrees Celsius (19 as I type this) and will get hotter as temperatures rise come summer, but already the CRS326-24G-2S+RM monitor in SWOS is reporting 60 degrees plus. (63 as I type this).


Tested ambient temperature -40°C to 60°C

according to https://mikrotik.com/product/CRS326-24G-2SplusRM

I used to have a Ubiquiti EdgeMAX switch there doing the exact same job and never got to those temperatures. Hardly ever above 40.

So how concerned should I be about this? Becasue as it is I am seriously worried about it since the location will get hotter.

2

So I took down the switch, while still in the rack and connected and measured the surface temperature of the chassis with a Schneider-Electric Infrared Thermometer (the ones that looks like a small gun) and the surface temperature of the top part of the chassis was about 30 degrees, but the interior sensor still says above 60 degrees? Is this a bug in the software or a temperature sensor that is broken, because I will make an RMA unless someone verifies this is a software thing.

I am aware that the routerboard itself does not have the exact chassis temperature (I build computers) and that there is a distance of about 25 mm between the board and the top chassi plates, but in any case there should not be a 30 degree discrepancy in those 25mm in an enclosed box

3

So this does not deserve any attention? Explanation?

4

This is the normal operating temp. If you search for “crs326 temperature” on the forums you will see some older threads about this. If it concerns you enough, add a fan.(also in the threads)

5

Try to boot with RouterOS to see if is the same temperature?
Probably, for wrong, you see CPU temperature. CPU at 60° is “normal” with chassis at 23°

6

The temp will be the same(or close to it)on both swos or ros. I have a couple of these devices.

7

http://forum.mikrotik.com/t/crs326-24g-2s-rm-fans/111316/1

Probably the temperature readed from CPU are interpreted as chassiss temperature on RouterOS, but is the CPU!!!

8

@biomesh
I don’t have to search the forums to read the hardware specifications and I did quote the

Tested ambient temperature -40°C to 60°C

as written there.

I can buy it is the CPU temperature @rextended. I will put a sensor there just in case, I already have one for the whole rack, but putting a sensor on the chassis would be a safety addition.

9

The tested ambient temp is where the router resides(room), not the temp it reports. While it may seem high, the mikrotik staff don’t seem concerned at all.

10

For me is a bug on software than report CPU temp as motherboard temp…

My rack are closed, not vented inside, on 23°C room…
years and years and years… no one single defective device

on outdoor Cambium PMP 450i broken after 2 mont of use… very disappointed, cost like 20 mANT and… no comment…
shipped for repair, I’m still waiting from October 2020…
Che qualità del cazzo.
On 60 CPE Cambium PMP 450b HigGain, 4 broken, 1 immediately, the other 3 do not pass one month… and each cost like 10 SXT…
On near 2000 CPE / AP / etc. MikroTik device last year, only 4 defective (All Disk 5 1st gen), 1 with software problems (/r2 of CCR1016-12G)

11

I agree, my rack is a small 6U in an small "attic" just below the roof tiles of my house. I know it is not an ideal location, it will get HOT during summer so I have monitoring sensors in place to track it and make sure I do something about it if it goes beyond 50 degrees ambient temperature. But, then I need to know I can TRUST the devices internal sensors, and KNOW what those are reporting.

So it seems the reported temperature is the CPU temperature, well, now I know that (?) but I guess I better file a support case with Mikrotik to be sure.