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Sometimes I reset my desktop and press F2 and then GRUB loads up. But some other times I reset and press F2 and then the Asus UEFI BIOS Utility loads up.

I'm new to the Asus UEFI Bios utility and have been diligently playing around with it. What setting causes the varying functionality I'm observing when I reset and press F2?

Thanks in advance for any help!

closed as off-topic by mikewhatever, user68186, Fabby, Eric Carvalho, Pilot6 Sep 1 '15 at 3:46

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This is not about Ubuntu. Questions about other Linux distributions can be asked on Unix & Linux, those about Windows on Super User, those about Apple products on Ask Different and generic programming questions on Stack Overflow." – mikewhatever, user68186, Fabby, Eric Carvalho, Pilot6
If this question can be reworded to fit the rules in the help center, please edit the question.

  • If you have grub as default, it probably is that it did not register f2 to get into system fast enough. Many UEFI have a fast boot setting (not Windows fast start up) which give essentially no time to press any keys. If cold booting then it may not use the fast boot? My Asus motherboard has settings for fast boot separate for each of cold boot & warm/reboot. And time delay to give time to press a key. – oldfred Aug 31 '15 at 16:41
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It once happened to my and the problem was that my CMOS battery ran out of juice. It could be something else for you but this looks like a possible cause

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