I am sorry for this inconvenience. Have you considered rolling back to BIOS version 064 using the recovery or F7 methods?
BIOS update instructions
I used GAZ7711H.86A.0064.EB.exe file first time. Updating to 066 was via F7. When I see that problem still exists after flashing 066, I run that GAZ7711H.86A.0064.EB.exe again according the instructions, thinking this may reset the scripts and fix it.
1. Shut down your box.
2. Press button on the back of your case called B2B (button turn red when on)
3. Start your box
4. Enter BIOS - F2
5. Exit BIOS
6. Shutdown box
7. Turn off B2B button
8. Start again - should be good
Hi all. Just got a little trip and forgot about topic here.
Some days ago I have to sort out cables of my usb stuff and found that the reason of this problem was not bios.
Such autostart produced a keyboard plugged in USB3.0 on back panel! I plug it there before update just to make it simply work in bios, since in black/yellow ports my keyboard & mouse work only after "cold" start, if I decide to make a restart from OS (not by pc case button) it becomes nonoperational until Windows loads. When I plug it back to 2.0 port pc shutdowns proper without any tricks.
I really don't know what's wrong can be with keyboard, it uses common key layout without any multimedia or power keys (Enermax Aurora KB007U), I have five various LGA1155 based boards and never faced any usb-related problem with it. So my version about incorrect flashing was a coincidence.
The best option is connecting the keyboard to the black USB 2.0 ports.