F5F Stay Refreshed Hardware Desktop This monitor triggers a BIOS error code during operation.

This monitor triggers a BIOS error code during operation.

This monitor triggers a BIOS error code during operation.

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NooahFNA
Junior Member
42
10-10-2022, 10:49 AM
#1
I recently bought an Acer Nitro XF273 monitor for my HP Omen desktop (i7-7700, GTX 1070, Thimphu-K OEM motherboard). When I connected the new monitor and tried to boot, it triggered a BIOS error consisting of three long beeps followed by three short beeps. HP suggests it might be code 02h ("verify real mode"), but I’m unsure what that means or if it’s correct. There’s limited information available about this OEM board. After repeating the error five times, the system booted normally into Windows 10, and the video output appeared perfect every time. Notably, using both my old monitors and a TV didn’t produce any error codes, and the computer started up without issues. When I switched to UEFI/BIOS and changed the monitor afterward, the video signal disappeared on the new Acer display. This suggests the UEFI/BIOS and boot screen aren’t compatible with this monitor. I also tested changing the refresh rate in Windows settings, but it didn’t help. The signal looks fine once the OS loads—only the boot interface fails. Clearing the CMOS by removing the battery didn’t resolve the problem. Any suggestions on how to make the monitor display the boot screen or UEFI/BIOS work properly? Thanks in advance.
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NooahFNA
10-10-2022, 10:49 AM #1

I recently bought an Acer Nitro XF273 monitor for my HP Omen desktop (i7-7700, GTX 1070, Thimphu-K OEM motherboard). When I connected the new monitor and tried to boot, it triggered a BIOS error consisting of three long beeps followed by three short beeps. HP suggests it might be code 02h ("verify real mode"), but I’m unsure what that means or if it’s correct. There’s limited information available about this OEM board. After repeating the error five times, the system booted normally into Windows 10, and the video output appeared perfect every time. Notably, using both my old monitors and a TV didn’t produce any error codes, and the computer started up without issues. When I switched to UEFI/BIOS and changed the monitor afterward, the video signal disappeared on the new Acer display. This suggests the UEFI/BIOS and boot screen aren’t compatible with this monitor. I also tested changing the refresh rate in Windows settings, but it didn’t help. The signal looks fine once the OS loads—only the boot interface fails. Clearing the CMOS by removing the battery didn’t resolve the problem. Any suggestions on how to make the monitor display the boot screen or UEFI/BIOS work properly? Thanks in advance.

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coopman2
Member
59
10-10-2022, 11:01 AM
#2
It seems the display might be starting later than expected. Most boards with a Code Display will show a VGA error when this occurs. Some motherboards let you extend how long the BIOS Post Screen stays before it ends, so you could try adjusting that setting if possible. However, changing it won’t prevent the error from appearing.
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coopman2
10-10-2022, 11:01 AM #2

It seems the display might be starting later than expected. Most boards with a Code Display will show a VGA error when this occurs. Some motherboards let you extend how long the BIOS Post Screen stays before it ends, so you could try adjusting that setting if possible. However, changing it won’t prevent the error from appearing.

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yoman199
Member
68
10-29-2022, 03:35 AM
#3
I don't believe the motherboard offers a way to extend the POST display time—it only lets you turn it on or off, and both settings gave the same outcome. The monitor also fails to show the UEFI screen even after switching monitors, which suggests it doesn't support non-Windows output formats. This is really puzzling for me.
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yoman199
10-29-2022, 03:35 AM #3

I don't believe the motherboard offers a way to extend the POST display time—it only lets you turn it on or off, and both settings gave the same outcome. The monitor also fails to show the UEFI screen even after switching monitors, which suggests it doesn't support non-Windows output formats. This is really puzzling for me.

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StyleTrick
Senior Member
744
10-29-2022, 06:12 AM
#4
I successfully resolved the problem after thorough research across various forums and websites. The GTX 1070 required a particular firmware update from NVIDIA for the UEFI and boot screens to function properly with this monitor. The updater performed a test update to verify necessity, since not every configuration requires it. During the test, the new monitor showed distorted pixel patterns and unusual graphics before confirming the update was beneficial. After installation, the UEFI and POST displayed normally on the updated screen. This thread should now help others facing similar challenges!
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StyleTrick
10-29-2022, 06:12 AM #4

I successfully resolved the problem after thorough research across various forums and websites. The GTX 1070 required a particular firmware update from NVIDIA for the UEFI and boot screens to function properly with this monitor. The updater performed a test update to verify necessity, since not every configuration requires it. During the test, the new monitor showed distorted pixel patterns and unusual graphics before confirming the update was beneficial. After installation, the UEFI and POST displayed normally on the updated screen. This thread should now help others facing similar challenges!