Hap ax3 processor temperature

Hardware MikroTik hardware general
1

Hello.

HAP ax3 CPU temperature is 50-53 degrees Celsius, is this normal?
The device is under 1-3% load.
The room where the router is is 22-23 degrees Celsius.

> /system/health print  
Columns: NAME, VALUE, TYPE
#  NAME             VALUE  TYPE
0  cpu-temperature     50  C   

> /system/resource print
                   uptime: 2h43m45s           
                  version: 7.20.8 (long-term) 
               build-time: 2026-01-30 09:17:54
         factory-software: 7.11.2             
              free-memory: 665.2MiB           
             total-memory: 1024.0MiB          
                      cpu: ARM64              
                cpu-count: 4                  
            cpu-frequency: 864MHz             
                 cpu-load: 1%                 
           free-hdd-space: 93.0MiB            
          total-hdd-space: 128.0MiB           
  write-sect-since-reboot: 42                 
         write-sect-total: 40624              
               bad-blocks: 0%                 
        architecture-name: arm64              
               board-name: hAP ax^3           
                 platform: MikroTik
2

I have two ax3 at home.

Temperature is around 60°C, and 63°C with 25% load.

3

50° is fine for a passive cooled device, it obviously also depend on the temperature in the room it is placed, 22-23° is a bit high.

I would have said 46-48° with 18-20°, so the difference around 28-30° is the same.

The real question is how high the temperature raises when the CPU is fully or nearly fully loaded.

It is in these cases that shouldn't be excessive, anything up to 70° or so should be fine, it is when it stays over 75° that I would start to think of cooling problems.

Compare with:

4

Yes.

My ax3 is currently 59°C in a 24°C room. It is normally around 55-60°. The room does not exceed 25° although it will be 37° outside today.

This is really not a problem. It passively draws cooling air through the base so that should be unobstructed.

5

Stock thermal pads and thermal paste aren’t the highest quality. Aluminum radiator is small, much smaller than full enclosure one on RB4011. Anyway I replaced thermal pads abd paste on AX3 and now temperature sensor showed me good results, dropped from +59C to +50C under the load with 35 wireless clients and ~30 firewall rules