NE40E — clear alarm system config alarm for NE40E device

NE40E — clear alarm system config alarm for NE40E device// MGF-NE40E-System config error

After checking the diagnostic file we found the following :
·       Device model and software version
·      
·       We checked the alarms regarding the system config alarm :

Memory is abnormal
·       Display alarm active
130560/Independent/2020-08-19 10:28:02/-/0xffdc2048/hwSystemConfigError/Major/Start/ OID 1.3.6.1.4.1.2011.5.25.219.2.11.1 The system configuration is incorrect. (EntityTrapFaultID=144133)

·       Display device
·      

MPU version information:

MPU(Master) 17 : uptime is 53 days, 3 hours, 20 minutes
         StartupTime   2020/08/19   10:20:19
  SDRAM Memory Size   : 2048M bytes
  FLASH Memory Size   : 32M  bytes
  NVRAM Memory Size   : 4096K bytes
  CFCARD Memory Size : 976M bytes
  CFCARD2 Memory Size : 976M bytes
  MADA version information
  PCB         Version : CR56MADA REV A
  FPGA        Version : 105
  CR5D0MPUB460 version information
  PCB         Version : CR56RPUA REV A
  EPLD        Version : 104
  FPGA        Version : 019
  BootROM     Version : 49.0
  BootLoad    Version : 43.1
  Software    Version : Version 5.160 RELEASE 0089
  MonitorBUS version information:
  Software    Version : 7.66
MPU(Slave) 18 : uptime is 53 days, 3 hours, 12 minutes
        StartupTime   2020/08/19   10:27:40
  SDRAM Memory Size   : 3904M bytes
  FLASH Memory Size   : 32M  bytes
  NVRAM Memory Size   : 4096K bytes
  CFCARD Memory Size : 976M bytes
  CFCARD2 Memory Size : 976M bytes
  MADA version information
  PCB         Version : CR56MADA REV A
  FPGA        Version : 105
  CR5D0MPUB460 version information
  PCB         Version : CR56RPUA REV B
  EPLD        Version : 104
  FPGA        Version : 019
  BootROM     Version : 49.0
  BootLoad    Version : 43.1
  Software    Version : Version 5.160 RELEASE 0089
  MonitorBUS version information:
  Software    Version : 7.66

·

  Display elabel
[Main_Board_0]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0
[Board Properties]
BoardType=CR56MPUB4
BarCode=030JTWW0B8000509
Item=03030JTW
Description=NetEngine40E,CR56MPUB4,Main Processing Unit B4(Including 1*2G Memory and 1*1G CF Card)
Manufactured=2011-08-12
VendorName=Huawei
IssueNumber=00
CLEICode=
BOM=
[Main_Board_1]
/$[ArchivesInfo Version]
/$ArchivesInfoVersion=3.0
[Board Properties]
BoardType=CR56MPUB4
BarCode=030JTWW0B8000509
Item=03030JTW
Description=NetEngine40E,CR56MPUB4,Main Processing Unit B4(Including 1*2G Memory and 1*1G CF Card)
Manufactured=2011-08-12
VendorName=Huawei
IssueNumber=00
CLEICode=
BOM=

[Conclusion]
From the previous logs and information we can find the following:
·       The alarm indicate that there is memory mismatch in the master and slave MPUs:
The memories of the master and slave MPUs were not consistent Reference

·       We checked the MPUs master and slave on slot 17 and 18 we found:
They are the same model with the same item BOM Code >>
CR56MPUB4/ 03030JTW and they are supported by the device  Reference

·       We checked the memory on each board and found they are not the same size
MPU(Master) 17 : uptime is 53 days, 3 hours, 20 minutes
StartupTime   2020/08/19   10:20:19
SDRAM Memory Size   : 2048M bytes

MPU(Slave) 18 : uptime is 53 days, 3 hours, 12 minutes
StartupTime   2020/08/19   10:27:40
SDRAM Memory Size   : 3904M bytes

·       The memory size of the master SRU/MPU must be the same as that of the slave SRU/MPU on one device. To be specific, one 2 GB memory is installed on both the master and slave SRUs/MPUs, or two 2 GB memories are installed on both the master and slave SRUs/MPUs. Expand the slave SRU/MPU memory first. After the slave SRU/MPU memory is expanded, if the slave SRU/MPU registers and the device is working normally, you can perform a master/slave SRU/MPU switchover and expand the new slave SRU/MPU memory
Reference Here

The SDRAM on the master and slave MPUs are not the same size

[Solution]
The memory size of MPUs must be the same :
·       Insert memory of the same size at the two boards