Question PC/Display gives no signal after changing settings in BIOS

[Hardstuckwithmypc]

Hello,

So I wanted to run the BF6 BETA and it required me to change to secure boot to on. I opened my BIOS and saw it was already on, I pressed key management and it showed succes. After that I wanted to turn secure boot off (to turn it back on again), however my PC screen went black and nothing happened. See below a list of my Motherboard and what I tried to fix this.

Motherboard is a GIGABYTE Z590D.

1. I tried to bridge the CMOS pins, after that still no signal.
2. I removed my GPU and removed the battery and put it back 5 minutes later. Still no signal.
3. I tried removing 1 ram stick and switching them, but of that didn't work. Still no signal.
4. I did a reset using my power on button (turn on, hold power button to turn off, 3 times, 4th try let it run). Still no signal.
5. I don't have integrated graphics, using a i7 10700KF.
6. Tried to Qflash with USB 3.0, but the qflash button didn't light up, I ordered a 2.0 32gb usb stick to try it again. Since only 2.0 seems to work well.

So when I turn my PC on, everything goes well. Fans start spinning, led lights turn on, keyboard lights turn on etc. My motherboard has these lights to see where the issue is, the red light stays on VGA.
Since I changed the BIOS settings with secure boot and I have no signal, it is logic that the VGA light is on, since no display is popping up (no post). The issue is not the PSU or other components, since everything worked well before I changed this in the BIOS.

Are there any other things I can try? I am going to wait for my USB 2.0 to arrive to try the qflash. But there are probably people here that know better. Is there anything else I can do?

 

[Lutfij]

Welcome to the forums, newcomer!

1. I tried to bridge the CMOS pins, after that still no signal.
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2. I removed my GPU and removed the battery and put it back 5 minutes later. Still no signal.
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4. I did a reset using my power on button (turn on, hold power button to turn off, 3 times, 4th try let it run). Still no signal.
In order to clear the CMOS, users are advised to disconnect from the wall and display, then remove the CMOS battery, press and hold down the power button for 30secs to drain any residual power then reseat the CMOS battery after 30mins.

Motherboard is a GIGABYTE Z590D.
Is this;
https://www.gigabyte.com/Motherboard/Z590-D-rev-10
the motherboard you're working with?
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5. I don't have integrated graphics, using a i7 10700KF.
When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

My motherboard has these lights to see where the issue is, the red light stays on VGA.
That might be an indication that your slot might be compromised or the motherboard's BIOS has ended up corrupt or the PSU is having issues delivering power to the GPU.

The issue is not the PSU or other components, since everything worked well before I changed this in the BIOS.
Anything in the world of electronics can see an abrupt end to it's tenure. In your instance, the PSU could be one of the culprits. Time as well as stress on a PSU can degrade it over time, apart from high temps, perhaps it was on it's way out. Source(borrow, not buy) a reliably built PSU with more power than the entire platform needs to rule out your PSU as the issue.