I was going to ask about this - I noticed the same in my 15v4. Also, is there a way to change the default behaviour so it doesn’t roll right into memtest after reboot and instead just boots the OS? 
I was going to ask about this - I noticed the same in my 15v4. Also, is there a way to change the default behaviour so it doesn’t roll right into memtest after reboot and instead just boots the OS?