RT-AC68U Temperatures

[L&LD]

I seem to vaguely remember that the cpu temp was available for a short period for the RT-N66U. But RMerlin removed it because so many were shocked at the high temp reported (but is perfectly normal for the chip in use).

Have you performed a reset to factory defaults on both routers after flashing the latest firmware? Did you manually and minimally configure each to secure them and connect to the ISP? Are they both in Wireless Router mode?

 

[Russ64]

I think I just found a good reason to flash Merlin's FW.... even running in AP mode

 

[neil0311]

My RT-AC68P is in a closet and maintains pretty consistent temps:

2.4 GHz radio = 52C
5 GHz radio = 54C
CPU = 78C

 

[RogerSC]

I am on the same firmware as you on two RTN66U routers. But I don't have that 3rd green line for the CPU. I just have 47-49c for the 2.4 and 5 Ghz wi fi.

How do I get the CPU temp too?

When you log into the router, do you see a file named "/proc/dmu/temperature"? If so, that file contains the CPU temperature, so you can use the "cat" command to view it:

cat /proc/dmu/temperature

I'm guessing that the file isn't there for the AC-N66U or the CPU temperature would be displayed in the firmware, but I can't look at this anymore.

By the way, the CPU temperature on the RT-AC68P that I have runs between about 75 and 80 degrees C. No fan or overclocking, both radios on. I would do something if my CPU temperature was in the high 90's, either RMA it or use a USB fan with it.

 

[RMerlin]

DMU is only available on the newer kernel used by the ARM-based routers.

 

[chris2kari]

My temps:

OC: 1200,800

1) Room temp: 20ºC -> 2.4 GHz: 51C - 5 GHz: 52°C - CPU: 71°C
2) Room temp: 29ºC -> 2.4 GHz: 55C - 5 GHz: 56°C - CPU: 81°C

97 ºC idle temp is crazy high for any cpu. In the long term it my fail due to 24h overheating.

Agreed.
When I look at the temp's on both routers, it is the cpu on router#1 that is outside normal range. Radio temps are same (normal range) on both 68u's that I have here. Clearly there is a manufacturing quality issue as same problem is being noticed by other people also. Probablity of getting a hot one seems to be about 50/50.
Good luck to you if you live in a country where customer service/warranty is good.
Tough luck for Australians..