GIGABYTE GA-H67A-D3H-B3 swap bioses

[thisisausername]

I was installing new RAM into the old motherboard GIGABYTE GA-H67A-D3H-B3 and wanted to boot from a flash drive to run MemTest. So I pressed F12 (or F9)(something like this).  But suddenly the question "Press Enter to swap BIOS" appeared on the screen and I inadvertently pressed Enter. 
Since then, I have to hold power + reset to start the computer, and only after that press power.
As far as I understand, one of the bioses was an old one, which does not support current processor or memory.

Question - what did I press to get that "Press Enter to swap BIOS" question to pop up, and how can I do it again to swap bioses back? 

P.S. The same prompt is mentioned in the thread  https://forum.giga-byte.co.uk/index.php/topic,17738.msg102417.html#msg102417

[shadowsports]

Greetings,
Its been a while since I messed with this, but try F9.  F12 is a one time boot menu. You can re-flash and synchronize your BIOS.  F8 will allow you to flash the BIOS using Q-Flash.  You can also access it from within set up using the same key.  Be careful however that you boot from the correct "working" BIOS before synchronizing.  The menus are clear and show you which BIOS you have and what will be copied over.     

[dmdilks]

This is the list of Bios Keys. Have you tried to hit f12 again when booting?

The BIOS Setup menus described in this chapter are for reference only and may differ by BIOS•
version.

BIOS Setup Program Function Keys

<h><i><><> Move the selection bar to select an item
<Enter> Execute command or enter the submenu
<Esc> Main Menu: Exit the BIOS Setup program
Submenus: Exit current submenu
<Page Up> Increase the numeric value or make changes
<Page Down> Decrease the numeric value or make changes
<F1> Show descriptions of the function keys
<F2> Move cursor to the Item Help block on the right (submenus only)
<F5> Restore the previous BIOS settings for the current submenus
<F6> Load the Fail-Safe BIOS default settings for the current submenus
<F7> Load the Optimized BIOS default settings for the current submenus
<F8> Access the Q-Flash utility
<F9> Display system information
<F10> Save all the changes and exit the BIOS Setup program
<F11> Save CMOS to BIOS
<F12> Load CMOS from BIOS

This is some options you can try. here is how you boot back into the backup BIOS:

Method 1

    Shut off your computer
    Hold the power button until your computer starts and shuts down again
    Press the power button again, your backup BIOS should kick in now and should re-flash the backup BIOS if there's anything wrong with the new one.

Method 2

    Shut off your computer
    Hold the power AND the reset button for about 10 sec, than release.
    It should boot into the backup BIOS now.

Method 3
Only use this if nothing else works.

    Short out pins 1 and 6 on the main BIOS chip by attaching a jumper to both the pins (pin #1 should be marked with a red dot or whatever)
    Tell a friend to press the power on button while you do this because right now you are holding the jumper on the pins
    Remove the jumper you're holding between pins 1 and 6 as soon as you hear a beep.
    Backup BIOS should boot now.