Unable to access BIOS following the deactivation of CSM.
Unable to access BIOS following the deactivation of CSM.
It seems the setup might block access to BIOS if the drive isn't formatted correctly. Usually, you can still reach BIOS by resetting CMOS. Look for a button on your I/O shield that stays pressed briefly while the computer is off—it should clear the CMOS. Wait a moment, then power up again. This usually solves boot issues but will reset any custom settings, so you'll need to adjust anything manually if needed.
I took out my CMOS battery and reset everything back to its original settings. Fortunately, very few changes were made in the BIOS settings. I’m not sure why this causes the BIOS to disappear altogether. I’m confused by the screen and it immediately jumps to Windows. I was hoping this would resolve the Riot Vanguard problems that stop me from playing Valorant on Windows 11, but removing access to the BIOS is a major setback. I wish they had provided more details in the build video about what exactly happens.
You may attempt to open BIOS via Windows (10). Proceed with the initial three instructions. https://www.howtogeek.com/783790/how-to-...=Accessing the BIOS From Within Windows 10&text=The simplest way to access,Options” and press Enter. If unsuccessful, power off your system completely (shutdown in Windows is acceptable). Press the power button on your case, then repeatedly click either DELETE or F2. Besides that… what model of keyboard are you employing? A wireless or Bluetooth device may require drivers and could be unresponsive until Windows initializes.
I wasn't expecting you to reach Windows while bypassing the BIOS—assumed you weren't even starting up. Look for a toggle labeled "quick boot" or similar in your BIOS settings. If it's active, turn it off. This adjustment speeds up Windows startup by disabling the "go to bios" option during boot. The reason for this feature isn't clear to me.
It's a connected keyboard. That's not the main problem. The problem is the splash screen with "ASUS" and "Press Del to enter BIOS" never appears. It stays black, black, black, then suddenly Windows (11) launches.
Keyboard and monitor details: Make and model. Connection type for GTX 1080: HDMI or DisplayPort.
I think you've already tried resetting the CSM after replacing the battery and still faced the same problem? It seems someone else had a comparable situation. A workaround involved connecting a second monitor through HDMI and disconnecting the display port monitor before starting up. It appears the person resolved it by unplugging a Valve Index that was connected via display port before booting, though.
G910 and ASUS VG27AQ are quite standard models. I've been waiting a few months for the ASUS VG27AQL1A to return. It seems clearing CMOS usually sets Fast Boot as the default. Can you open the BIOS from Windows?
Here I am after two attempts to remove CMOS batteries. It seems the problem isn’t resolved yet. Even with Windows 11 functioning properly, certain games and programs still can’t recognize secure boot activation, and the tpm.msc tool reports failure. This appears to be a separate concern. I’ve tried bypassing it by disconnecting all three monitors from DisplayPort and connecting one via HDMI, but results remain unchanged. BIOS and UEFI settings are still inaccessible, and I’m only able to boot directly into Windows.
This is puzzling given my 2017 ASUS build with consistently problematic areas. After clearing CMOS, I disabled fast boot—though it was already turned off. Attempting a full BIOS reset forced a hard reset to restore the OS.
I’m beginning to suspect that the UEFI, BIOS, and ASUS splash screen might not be fully present, even though Windows appears to load normally. It’s strange that nothing shows through DP or HDMI, while the OS itself is visible.