RB 433AH is restarting always

Hardware MikroTik hardware general
1

Hi,

I have RB 433AH with version 5.5. It is restarting always without giving any error. Sometimes, it is taking too much time to boot at this point

Press any key within 2 seconds to enter setup..
loading kernel from nand… OK
setting up elf image… OK
jumping to kernel code


Regards,

Aslam

2

If it possible, scan pcb board for any visible damage on the capacitors. Secondly - does FW up to date? Check power block. Change on new one. In the ROS, set logging to memory critical errors. And check log after unplanned reboot.

3

change the 6v 470uf filter in the main board, always these are the problem.

4

thanks for the reply.


I can’t login to os because it is rebooting. secondly there is no capacitor 6v470.

Regards,

Aslam

5

the capacitor are 3 560 microfarad 6.3v