F5F Stay Refreshed Hardware Desktop Activating Secure Boot to block video display D6 POST on EVGA X299 Micro ATX 2 model

Activating Secure Boot to block video display D6 POST on EVGA X299 Micro ATX 2 model

Activating Secure Boot to block video display D6 POST on EVGA X299 Micro ATX 2 model

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GameBoosh
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01-01-2021, 06:19 AM
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Hello everyone. The setup includes an EVGA GTX 1080 FTW DT, an EVGA X299 Micro ATX 2, 32GB DDR4 3200, an i7 7820x. I've been without a computer for a few days because my motherboard wasn't recognizing the GPU. I checked several forums but didn’t find any solutions. I was trying to switch to Windows 11. Disabling CSM fixed the problem temporarily—no video output—but I booted into Windows afterward. After installing a driver for my GPU (available on NVIDIA’s site), I managed to disable CSM and still see video in BIOS. When I turned Secure Boot on, it stopped working entirely. I tried flashing the BIOS from USB, clearing CMOS by leaving it unplugged with the battery removed, removing the GPU, reinstalling it, and even disconnecting all SATA connections. Despite these efforts, I still can’t get video output. My fiancé has a 1070 and that didn’t help either. It seems the motherboard isn’t detecting the GPU after Secure Boot was enabled. I’ve tried flashing from USB, but the POST code keeps showing an “F.” I also lost my motherboard’s USB during transport. I’m not sure what else to try—any advice or workarounds would be greatly appreciated. Thanks!
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G
GameBoosh
01-01-2021, 06:19 AM #1

Hello everyone. The setup includes an EVGA GTX 1080 FTW DT, an EVGA X299 Micro ATX 2, 32GB DDR4 3200, an i7 7820x. I've been without a computer for a few days because my motherboard wasn't recognizing the GPU. I checked several forums but didn’t find any solutions. I was trying to switch to Windows 11. Disabling CSM fixed the problem temporarily—no video output—but I booted into Windows afterward. After installing a driver for my GPU (available on NVIDIA’s site), I managed to disable CSM and still see video in BIOS. When I turned Secure Boot on, it stopped working entirely. I tried flashing the BIOS from USB, clearing CMOS by leaving it unplugged with the battery removed, removing the GPU, reinstalling it, and even disconnecting all SATA connections. Despite these efforts, I still can’t get video output. My fiancé has a 1070 and that didn’t help either. It seems the motherboard isn’t detecting the GPU after Secure Boot was enabled. I’ve tried flashing from USB, but the POST code keeps showing an “F.” I also lost my motherboard’s USB during transport. I’m not sure what else to try—any advice or workarounds would be greatly appreciated. Thanks!

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