[Solved] GA-Z370N-WIFI "Reboot and select proper boot device ....

[b.kind]

Somehow messed up my hackintosh. GA-Z370N-WIFI. i630 graphics.

On reboot, the GIGABYTE BIOS logo appears for 1 second, and will not respond to keyboard input. Then ...

"Reboot and select proper boot device
or insert boot media in selected boot device and press a key"

Do these words come from the BIOS?

I've tried F12, DELETE, nothing. Swapped keyboards...

Tried booting from the Installation USB drive created by UniBeast.
Even ran UniBeast and re-created the drive, just to be certain.

Nothing. I can't even get into to the BIOS.

 

[Jamesbond007]

Somehow messed up my hackintosh. GA-Z370N-WIFI. i630 graphics.

On reboot, the GIGABYTE BIOS logo appears for 1 second, and will not respond to keyboard input. Then ...

"Reboot and select proper boot device or insert boot media in selected boot device and press a key"

Do these words come from the BIOS?

I've tried F12, DELETE, nothing. Swapped keyboards...

Tried booting from the Installation USB drive created by UniBeast.
Even ran UniBeast and re-created the drive, just to be certain.

Nothing. I can't even get into to the BIOS.

Yes, that message comes from the BIOS. I think the motherboard is unable to find your disk and therefore it asks you to select a boot device.

Looks like a hardware problem if you can't even get into the BIOS. Try removing all USB devices and disconnect all drives except the drive with MacOS installed and try booting again.

Have you tried resetting the BIOS by using the jumper on the motherboard? If you want to do this check the manual for proper instructions.

 

[b.kind]

Thank you for writing.

I can not reset the BIOS, because I can not get into the BIOS.

The one USB device is an Apple Keyboard.
I have tried other USB keyboards, same result.

This happened right after running MultiBeast and restarting.

Can MultiBeast brick a PC, the way it can brick a Mac?

 

[P1LGRIM]

I can not reset the BIOS, because I can not get into the BIOS.

Disconnect the drive and see if you can enter the BIOS setup (no drives connected).

 

[b.kind]

Thank you, will do!

 

[b.kind]

P1LGRIM,
I had 3 hard drives connected. All three had been working find for weeks.
Disconnect them all, restarted, now I can get to BIOS, reset it.
Connected up the biggest hard-drive, it works!

I will be more cautious adding hard-drives in the future.

Thank you for your help.