MSI Z87 GD65 Power On North Bridge Initialization

Hello everyone, 

I've been getting the "03" debug code on my MSI Z87 GD65 for a while now. I looked it up in the manual and it says: "Power on North Bridge Initialization". I have no idea what that means, can someone teach me? My computer works fine, but I'm curious to know what's up.

Thanks for the help.

if your computer is normaly working, then try to download and update to the newest bios.