Question Black screen crashes in Oblivion Remastered, turning off Core Performance Boost fixes it ?

[Shodan0000]

I have been playing the newly released Oblivion Remastered game for some time, but in the open world I have frequent crashes. Currently I have a savefile, where upon using a magic ability "Night Eye" it nearly always instantly crashes. This has given me an opportunity to find the root cause of the issue.

When the game crashes, it gives a black screen, monitor signal lost, USB devices are also off, computer fans stay on. Only a reset helps.

PC Specs
Motherboard: MSI B450 Gaming Pro Carbon AC
GPU: 6900XT
CPU: Ryzen 5800X
RAM: 2 x 16GB Kingston HyperX Predator 3600MHz



What I tried to remedy the issue:

- Install latest AMD driver (using DDU in safe mode to uninstall previous driver)

- Update BIOS to latest version

- Disable XMP profile

- Undervolt GPU (For some time, this seemed to give greater stability, but the above mentioned save file still crashes it

- Underpower GPU (-10% power)

- Turn off all AMD functions in Adrenalin

- Turn off CPU settings: SVM / Core Performance Boost / Precision Boost Overdrive

Only the last one solves the crash. I then tried to turn on SVM (still runs well), but when turning CPB back on, the crashes happen again.

I then tried running the PBO settings in ECO mode and also (separately) to set Voltage +10 in curve optimizer. Both options do not work.

When stress testing the CPU / GPU in OCCT, nothing happens (on standard bios settings).

Currently Oblivion Remastered is the only game that gives this specific crash, but the fact that it can be solved by turning off core performance boost does seem to me that it is still a hardware related fault.

Obviously turning off CPB is not a real solution, since it makes the CPU significantly underperfom. Any ideas what I could do to get to a better solution?

I don't believe this is power / temperature related, since undervolting / underpowering GPU and underpowering the CPU (PBO eco mode) do not solve the issue.

Hope to hear your thoughts!

 

[TerryLaze]

Precision boost overdrive is overclocking so together with CPB it probably hits too high for the CPU, if oblivion remastered is as single threaded as the original then it would make some sense that pushing one core to the extreme causes crashes, when all cores are being pushed the total power usage cuts them off at a safer level.

Does it still do it with CPB on but PBO off?

 

[Shodan0000]

Precision boost overdrive is overclocking so together with CPB it probably hits too high for the CPU, if oblivion remastered is as single threaded as the original then it would make some sense that pushing one core to the extreme causes crashes, when all cores are being pushed the total power usage cuts them off at a safer level.

Does it still do it with CPB on but PBO off?

Yes. I turned off SVM / CPB and PBO. When that fixed it, I turned on SVM, still worked, CPB: Crash. So PBO was still off.

 

[Shodan0000]

Did some more tests. Setting the multiplier manually to 44 works stable. No more crashes. Not sure why this is needed, but it works.