ASROCK Z170 FORMULA OC - Unable to go in bios

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   Hi,
I had everything working fine, windows installed and keyboard mouse working fine.

Then I went to the bios to try manual overclocking, change values like core multi, voltage and so on.
Then next boot nothing.
After a few boot I have the message "Due to multiple boot error, bios now going reset mode, hit f2 or esc to go to bios menu or do nothing for uefi boot".

Pressing F2 or ESC do nothing : Unfortunately keyboard or mouse are not working (they are not even lighted on : like they are not connected).

Then the computer boots normally and i'm back at windows with working keyboard mouse but default bios settings.

I then try to reboot but it doesn't boot. then after a few tries, it's the same thing happening again with error message asking to press F2 or ESC, but doesn't work --> then boot to windows with default bios.

I tried to reset CMOS, it then boot and go to the bios, but i can't change anything : keyboard and mouse are not powered up

I'm a bit clueless about what to do now

Can someone help me ?

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dhaine Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Dec 2015 Status: Offline Points: 4	Post Options Post Reply Quote dhaine Report Post Thanks(0) Quote Reply Topic: ASROCK Z170 FORMULA OC - Unable to go in bios Posted: 10 Dec 2015 at 12:19am
	Hi, I had everything working fine, windows installed and keyboard mouse working fine. Then I went to the bios to try manual overclocking, change values like core multi, voltage and so on. Then next boot nothing. After a few boot I have the message "Due to multiple boot error, bios now going reset mode, hit f2 or esc to go to bios menu or do nothing for uefi boot". Pressing F2 or ESC do nothing : Unfortunately keyboard or mouse are not working (they are not even lighted on : like they are not connected). Then the computer boots normally and i'm back at windows with working keyboard mouse but default bios settings. I then try to reboot but it doesn't boot. then after a few tries, it's the same thing happening again with error message asking to press F2 or ESC, but doesn't work --> then boot to windows with default bios. I tried to reset CMOS, it then boot and go to the bios, but i can't change anything : keyboard and mouse are not powered up I'm a bit clueless about what to do now Can someone help me ?

dhaine Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 10 Dec 2015 Status: Offline Points: 4	Post Options Post Reply Quote dhaine Report Post Thanks(0) Quote Reply Posted: 10 Dec 2015 at 12:40am
	i was able to reboot and go to the bios, with the mouse/keyboard illuminated, but keyboard or mouse weren't working bios seemed to work fine as date timer was going fine (seconds going on)