Restart after bootselect

Hi,
I am using the 13.2 opensuse and the last month or so my pc keeps restarting on bootselect, it displays ‘checking memory’ message and automatically restarts.
If I leave it like that it can restart for 10-15 times and finally show the desktop.
When on bootselect I select advance options and select the last kernel but on safe mode then it boots with no problem.

Is there any command or log file so I can see what was the last booting problem?

After a successful boot, you can view the previous boot sequence with the following

journalctl -b -1

The “-1” flag indicates the previous boot, you can increment to display earlier boots.

This is all somewhere in the journalctl MAN pages but can usually be found more quickly by Googling…

HTH,
TSU

Thanks,
I hope I can find the root of the problem with this information