ISR 4431 , bug CSCuw79856,CSCvc24451

[Maksym_Herasymchuk]

Hi, we have two power supplies and on P0 we get the following messages. 

environmental-1-alert: v: pem out, location: p0, state: warning, reading: 13100 mv

The bug recommendations have been complied with, but to no avail(IOS 15.5(3) CPLD 16.7(4r))

please tell me how to fix the problem

[extac · Accepted solution]

Hi

I confirm it is confusing, can you put 

show version and show platfrom output here:

[Maksym_Herasymchuk]

Hi, my output from the router:

show platform 

Chassis type: ISR4431/K9

Slot Type State Insert time (ago)
--------- ------------------- --------------------- -----------------
0 ISR4431/K9 ok 3w0d
0/0 ISR4431-X-4x1GE ok 3w0d
0/1 NIM-1CE1T1-PRI ok 3w0d
0/2 NIM-2MFT-T1/E1 ok 3w0d
R0 ISR4431/K9 ok, active 3w0d
F0 ISR4431/K9 ok, active 3w0d
P0 PWR-4430-AC ok 3w0d
P1 PWR-4430-AC ok 3w0d
P2 ACS-4430-FANASSY ok 3w0d

Slot CPLD Version Firmware Version
--------- ------------------- ---------------------------------------
0 16092742 16.7(4r)
R0 16092742 16.7(4r)
F0 16092742 16.7(4r)

sh ver

Cisco IOS XE Software, Version 03.16.04b.S - Extended Support Release
Cisco IOS Software, ISR Software (X86_64_LINUX_IOSD-UNIVERSALK9-M), Version 15.5(3)S4b, RELEASE SOFTWARE (fc1)

ROM: IOS-XE ROMMON

uptime is 3 weeks, 6 hours, 30 minutes
Uptime for this control processor is 3 weeks, 6 hours, 31 minutes
System returned to ROM by reload at 23:16:35 UTC Mon Jul 26 2021
System restarted at 08:57:33 UTC Tue Jul 27 2021
System image file is "bootflash:isr4400-universalk9.03.16.04b.S.155-3.S4b-ext.SPA.bin"
Last reload reason: PowerOn

Suite License Information for Module:'esg'

--------------------------------------------------------------------------------
Suite Suite Current Type Suite Next reboot
--------------------------------------------------------------------------------
FoundationSuiteK9 FoundationSuiteK9 RightToUse FoundationSuiteK9
securityk9
appxk9

AdvUCSuiteK9 AdvUCSuiteK9 RightToUse AdvUCSuiteK9
uck9
cme-srst
cube

Technology Package License Information:

-----------------------------------------------------------------
Technology Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------
appxk9 None None None
uck9 None None None
securityk9 None None None
ipbase ipbasek9 Permanent ipbasek9

cisco ISR4431/K9 (1RU) processor with 3696789K/6147K bytes of memory.
Processor board ID FGL19231102
4 Gigabit Ethernet interfaces
1 Serial interface
2 Channelized E1/PRI ports
32768K bytes of non-volatile configuration memory.
8388608K bytes of physical memory.
7081983K bytes of flash memory at bootflash:.

Configuration register is 0x2102

[vpavlovwa]

Hi Maksym, how did you fix your problem? I cannot see what the solution was.

Thank you,

Vladimir

[Maksym_Herasymchuk]

Hi, I tested it and came to the conclusion that the power supply needs to be replaced. Other options did not help.

[Richard Patterson]

I have the same issue with Cisco IOS XE Software, Version 16.09.07. Log entry every 5 min.

Sep 13 14:15:56 UTC: %ENVIRONMENTAL-1-ALERT: V: PEM Out, Location: P1, State: Warning, Reading: 13400 mV
Sep 13 14:20:56 UTC: %ENVIRONMENTAL-1-ALERT: V: PEM Out, Location: P1, State: Warning, Reading: 13400 mV
Sep 13 14:25:56 UTC: %ENVIRONMENTAL-1-ALERT: V: PEM Out, Location: P1, State: Warning, Reading: 13400 mV
Sep 13 14:30:56 UTC: %ENVIRONMENTAL-1-ALERT: V: PEM Out, Location: P1, State: Warning, Reading: 13400 mV

Chassis type: ISR4431/K9

Slot Type State Insert time (ago)
--------- ------------------- --------------------- -----------------
0 ISR4431/K9 ok 14:30:16
0/0 ISR4431-X-4x1GE ok 14:27:59
0/1 NIM-4MFT-T1/E1 ok 14:27:59
0/2 NIM-4FXS ok 14:27:59
0/3 NIM-2FXS/4FXO ok 14:27:59
0/4 PVDM4-64 ok 14:27:59
R0 ISR4431/K9 ok, active 14:30:16
F0 ISR4431/K9 ok, active 14:30:16
P0 PWR-4430-AC ok 14:29:45
P1 PWR-4430-AC ok 14:29:45
P2 ACS-4430-FANASSY ok 14:29:45

Rebooting last night didn't fix the issue.