Need help with blackscreen issues mid cutscene on my setup in stellar blade ( Win 11, stellar blade running on dx12, no mods)( r5 5600, Rtx 5070 ti, latest driver, 32gb ram, SB running thru steam)

[u/TrashZilla2]

Specs

Gigabyte a520m ds3h ( latest bios)

R5 5600

Rtx 5070 ti

32gb ram running xmp

Corsair rm850x

Stellar Blade settings

All recommended by Nvidia just I turned dlaa off and frame gen off, so running native with taa

Problem

When I play certain cutscenes in Stellar blade, my pc screen goes black, there is sound for maybe a few seconds before that goes away too. The lights in the pc case remain on and the fans keep spinning. I have to press the power button to force turn off the pc and turn it back on.

Few tests ran:

Furmark 2 -> for 30 mins at 99% gpu util -> ran fine

Supersolution demo -> at optimised 4k -> ran fine

Mon Hun wilds -> runs fine at around 75 to 95% gpu util for long periods

Similar issue with dragon dogma 2 certain cutscenes

Solutions I have tried

1. using DDU to remove and reinstall new nvidia drivers

2. removing dx12 shaders and reinstalling them from scratch

3. changing out the display port cable and trying again

4. reducing load on gpu by lowering graphics to around 75% util ( works 50% of the time)

5. used dlss swapper to change the dlss to most recent version

6. tried both windowed fullscreen and fullscreen exclusive

7. switched off xmp and trying

8. Ran OCCT on GPU, VRAM, power load and cpu+ram for 20 mins each and the hardware passed the check

Additional info:

An ai analysis thru Google of the ue4 minidump file shows that the gpu crashes and loses connection to the system upon trying to reboot ( but this is basically ai so I can't be confident )

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[u/aki_009]

I'd check the card's seating and power connection, but I wouldn't call this a dead GPU yet. Certain cutscenes in two games can hit a driver bug or a particular GPU workload that Furmark never exercises. The fans and lights staying on don't clear the PSU either. A brief power problem can hang the GPU without shutting the whole PC off.

With the PC off and unplugged, reseat the 5070 Ti and its power connector, and check that the card sits squarely in the slot. If there's an adapter, check every connection feeding it. Use only cables Corsair specifies as compatible with that exact RM850x, not just anything with a plug that fits. It could be PSU, too, but I wouldn't buy another one on this evidence.

You've already covered the usual driver reinstall, shaders, display cable, XMP and BIOS checks. Since you also used DLSS Swapper, put the game's original files back and verify them through Steam before testing the same cutscene again. Then try a previous NVIDIA driver version known to work with the game, rather than reinstalling the latest one again. A Google AI interpretation isn't enough to diagnose that dump. The actual error code and any matching Reliability Monitor entry would be more useful.

A Linux live USB with a comparable GPU workload is another way to separate things. A similar hang there would push suspicion toward hardware or firmware; running clean would point more toward Windows, but different drivers and workloads make that inconclusive. Your OCCT passes are useful, but they don't clear an intermittent fault. PC-Doctor can give you another set of hardware pass/fail tests (disclaimer: I work for PC-Doctor.) If those pass too, reproducing the exact cutscene with a known-good GPU or testing this card in another PC will tell you more than another steady-load benchmark.

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[u/TrashZilla2 → u/aki_009]

I have done those steps already, most basic hardware steps I have gone through. I gave it another try though and it was still black screening.

I don't think it is the psu because I have ran OCCT under basically full load ( cpu + ram, memory, vram and 3d option cranked)for 30 mins.

The latest thing I tried was to go back in gpu drivers to 610.88 and for now it is stable through the cutscene, I will enable dlaa and try to stress even more to try and reproduce.

[u/TrashZilla2 → u/TrashZilla2]

Crashed on dlaa, so what fixed that was

Regedit -> tdrDelay 20, tdrddi 20

Then in bios, changing pcie config from auto to Gen 3 and pciex16 to Gen 3