motherboard is : https://www.gigabyte.com/Motherboard/GA-P61A-D3-rev-30#ov
CPU : Core i7 2600
RAM : 16GB DDR3

this mother board lost bios setting when power disconnected
as you can see this mother board is dual bios but I just using one OS

what i did to fix :
change cmos battery with new one
using clear cmos terminal
change bios version to last version
The other BIOS is just "Spare" in case primary BIOS is corrupted and then it should just switch to it. Has nothing to do with number of OSs. If there's an option you should be able to switch to that spare one. When you update BIOS version it updates only primary and pressing F11 key should make not same version.
 
May 17, 2023
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The other BIOS is just "Spare" in case primary BIOS is corrupted and then it should just switch to it. Has nothing to do with number of OSs. If there's an option you should be able to switch to that spare one. When you update BIOS version it updates only primary and pressing F11 key should make not same version.
it dosent work !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

Barty1884

Retired Moderator
yes...... settings wont save
as i said i did every thing with cmos and there is no option to switch between Bios's
You are actually hitting "save & exit" after making changes? Will be F10 on most boards - and you'll be prompted to confirm. Make sure you're not hitting 'no', or exiting with a different command, etc.

Sometimes it's the easy/obvious things.