Random black screens after restarting the PC with my 4070

[brisk vector]

Random black screens after restarting the PC with my 4070, it usually happens to me when DDU restarts my pc. When this happens, I have no choice to force the PC to shut down. Of course, once it is turned On again it shows video and everything works normal. I have not had any problems with my GPU in games or anything, I have run several 3DMark benchmarks and everything is normal, temperatures and performance.

Causes that I have considered:
*Problem with the ram modules, I recently added two more modules to my rig, now I have 4 modules of 16GB each 64GB Total. I've heard that having 4 modules can cause issues like these, even being the same brand and model.
*Problem with my Motherboard, well I have a Gigabyte Elite Z590 Elite AX, I don't know if it is also the problem, but I checked in the bios updates in the webpage that this was precisely happened on the 3060 too, Gigabyte released a bios to solve the 3060 issue, so I think this also be happening with the 4070 Idk. I would like to know if anyone has experienced this or something like it.
🤔

[hasty oasis]

Does this issue appear when on a cold boot?

Does this issue appear using a different display connection or display?

Is the computer actually frozen or just not outputting video? (Pay attention to the HDD activity LED if it has it. If it does its thing despite the black screen, it's the display/graphics portion. Otherwise, it's not.)

Using 4 RAM slots? If they were something like 3200 MHz I wouldn't be too worried. But faster? Or mixed RAM? Hmm... see if the problem goes away with 2x16 and RAM slowed down to stock or 3200

For 2 RAM config put on A2 and B2 (second and fourth slots from left)

Don't forget to load optimized defaults once beforehand

[brisk vector]

It happens on restarts, when I entered to safe mode, especially because of the ddu, that's when it happens most frequently. It has also happened on normal restarts. And happened during normal PC startups, but it is very rare.

[brisk vector]

I don't have a LED that registers SSD activity, I have an NVME main disk. The only thing I can say is that when this happens the VGA LED is red on the motherboard. There are 4 LEDs that show a possible error. The VGA light red, indicating some video problem. Previously I had a 3060ti this led also appears but it seems like it bypassed by the motherboard because it never "blocked" the pc like it happens here with the 4070

[brisk vector]

Well, they are 3200 MHz, but I didn't buy a single kit of 4 modules, rather I bought 2 kits of 2 modules. I have heard that having two different kits even if they are the same brand and model can vary and not work together well. I'm going to try what you tell me with two modules. I'll see if the same thing happens. Thanks : )

[hasty oasis]

seems like it's pointing to either the video card or the slot

this probably gonna sound weird, but if there are other x16 slots, try them too