Code 30 is displayed if the system resumed from sleep. It's normal.
It's definitely not "normal" : when a user sees a status message like "Code 30 Check CPU" on their OLED screen of their motherboard then they will assume that something is seriously wrong and start panicking and thinking the worst. (is my CPU improperly seated in the CPU socket ??? Did I damage my CPU ??? ...)
If there's really nothing wrong then don't show a scary status code like that and let it revert back to normal operations (like showing CPU temperature, ...), that's how it should be done properly.
BIOS 1003 also has this bug. Please fix this.