C3925 %ENVMON-1-CPU_CORE_WARNING_OVERTEMP

[cm6043]

Hi all,

Do you know what the meaning is or how to fix it ?, thank you

Model : 3925

Mar 10 21:58:49.582 UTC: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage.
Mar 10 21:59:19.641 UTC: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage.
Mar 10 21:59:49.700 UTC: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage.
Mar 10 22:00:19.759 UTC: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage.

------------------ show environment ------------------

SYSTEM POWER SUPPLY STATUS
==========================
Internal Power Supply 1 Type: AC
Internal Power Supply 1 12V Output Status: Normal

Internal Power Supply 2 Type: Absent

SYSTEM FAN STATUS
=================
Fan 1 OK, Medium speed setting
Fan 2 OK, Medium speed setting
Fan 3 OK, Medium speed setting
Fan 4 OK, Medium speed setting
Fan 5 OK, Medium speed setting

SYSTEM TEMPERATURE STATUS
=========================
Intake Left temperature: 31 Celsius, Normal
Intake Right temperature: 26 Celsius, Normal
Exhaust Right temperature: 44 Celsius, Normal
Exhaust Left temperature: 53 Celsius, Normal
CPU temperature: 28 Celsius, Normal
Power Supply Unit 1 temperature: 31 Celsius, Normal

REAL TIME CLOCK BATTERY STATUS
==============================
Battery OK (checked at power up)

CPU CORE TEMPERATURE STATUS
===========================
  CPU Core current reading, target = 22, reading = 18 (+4): Over-Target
  CPU Core out of target history in past 415672.0 mins:
     Consecutive out-of-range mins high water mark: 15727.0
     Total minutes out-of-range: 25444.5
     Last 5 minutes out-of-range: 5.0
     Last 5 minutes consecutive out-of-range: 15727.0
     Last 5 minutes read failure count: 0

SYSTEM WATTAGE
===============
Motherboard, EHWIC, PVDM, Power Supply and Fan Power consumption = 127.2 W
Total System Power consumption is: 127.2 W

Environmental information last updated 00:00:15 ago

Regards
Leung Che Man

[Leo Laohoo]

Could be an IOS bug. Go to the Cisco Bug Toolkit and punch in your IOS version and see if the error message you're seeing appears.

[netstar-hk-service]

Thanks for your information but I cannot find any ios bug related to this error message. Could I know whether the threshold value can be change ? I can see the threshold is only 22. Is it a default value ?

Cheers

Leung Che Man

[cm6043]

Hi all,

Could anyone know what the issue is ? I can see system temperature and system FAN are normal

Mar 10 21:58:49.582 UTC: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage

Cheers

Leung che Man

[Leo Laohoo]

Post the output to the command "sh env temp" and "sh env all".

[gephelps]

Part of this question is the following log message:

%ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 18. It exceeds threshold 22. Please resolve system cooling immediately to prevent system damage.

There is a real problem being reported here. When the 3900e was developed they used an inverted value for the temperature which CSCum99304 should eventually address. To find the true temperature you take the max value of 101 and subtract from there. So in the example message the current real value is 83C and the threshold is 79C. In other words the CPU is really outside of the normal range. As the current value goes down the problem is actually getting worse. For example the person who had the log message with a current value of 10 equates to 91C.

[Mansour]

R1#sh environment all
SYSTEM POWER SUPPLY STATUS
==========================
Internal Power Supply Type: AC-POE
Internal Power Supply 12V Output Status: Normal
Internal Power Supply POE -48V Voltage Status: Normal

External Redundant Power Supply is absent or powered off

SYSTEM FAN STATUS
=================
Fan 1 OK, Maximum speed setting
Fan 2 OK, Maximum speed setting
Fan 3 OK, Maximum speed setting
Fan 4 OK, Maximum speed setting

SYSTEM TEMPERATURE STATUS
=========================
Intake Left(Bezel) temperature: 46 Celsius, Abnormal
Intake Left temperature: 47 Celsius, Abnormal
Exhaust Right(Bezel) temperature: 50 Celsius, Normal
Exhaust Right temperature: 51 Celsius, Normal
CPU temperature: 77 Celsius, Normal
Power Supply Unit temperature: 51 Celsius, Normal

REAL TIME CLOCK BATTERY STATUS
==============================
Battery OK (checked at power up)

SYSTEM POWER
===============
Motherboard Components Power consumption = 82.9 W
Total System Power consumption is: 82.9 W

Environmental information last updated 00:00:09 ago

R1#

[chinart13]

Hi, 

Even I have the same message coming up and one more warning message comes up (modem signal transitons)

%HWIC_SERIAL-3-LINEFLAP: Excessive modem signal transitions detected on line 5

%ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 10. It exceeds threshold 20. Please resolve system cooling immediately to prevent system damage

What could be the issue ?

Chinar

[sam.forster]

I'm getting this same issue, did anyone find an answer?

Oct 16 09:45:55.339: %ENVMON-1-CPU_CORE_WARNING_OVERTEMP: Warning: CPU core is very hot value = 24. It exceeds threshold 24. Please resolve system cooling immediately to prevent system damage. 

#sh env all
SYSTEM POWER SUPPLY STATUS
==========================
 Internal Power Supply 1 Type: AC
 Internal Power Supply 1 12V Output Status: Normal

 Internal Power Supply 2 Type: Absent

SYSTEM FAN STATUS
=================
 Fan 1 OK, Low speed setting
 Fan 2 OK, Low speed setting
 Fan 3 OK, Low speed setting
 Fan 4 OK, Low speed setting
 Fan 5 OK, Low speed setting

SYSTEM TEMPERATURE STATUS
=========================
 Intake Left temperature: 22 Celsius, Normal
 Intake Right temperature: 18 Celsius, Normal
 Exhaust Right temperature: 41 Celsius, Normal
 Exhaust Left temperature: 46 Celsius, Normal
 CPU temperature: 20 Celsius, Normal
 Power Supply Unit 1 temperature: 29 Celsius, Normal

REAL TIME CLOCK BATTERY STATUS
==============================
 Battery OK (checked at power up)

CPU CORE TEMPERATURE STATUS
===========================
  CPU Core current reading, target = 24, reading = 29 : Normal
  CPU Core out of target history in past 248.0 mins:
     Consecutive out-of-range mins high water mark: 26.0
     Total minutes out-of-range: 43.0
     Last 5 minutes out-of-range: 0.0
     Last 5 minutes consecutive out-of-range: 0.0
     Last 5 minutes read failure count: 0


SYSTEM WATTAGE
===============
 Motherboard, EHWIC, PVDM, Power Supply and Fan Power consumption = 133.2 W
 NM/SM slot 1 Power consumption = 35.904 W
 Total System Power consumption is: 169.1 W

 Environmental information last updated 00:00:19 ago


System image file is "flash0:c3900e-universalk9-mz.SPA.151-4.M5.bin"

[sam.forster]

Actually thinking about this there's no way the CPU can be at a similar temperature as the intake air.....

[chinart13]

It looks like it's faulty fan assembly with 3925 chassis.
Has anyone tried replacing FAN assembly of 3925-Terminal Server?