General Discussions

[dashky]

Hi, I've been trying the new x3D profile in the core flex section
and it seems to have solved the problem of PC crashes
I think they should set it by default because it solves many errors
I was going crazy and it seems that what was failing was the 3dvcache algorithm

[FunkZ]

Your post is somewhat vague as it doesn't include your system specs nor what the "core flex algorithm" referenced.

Through search it seems this is an ASUS BIOS setting to address core prioritization on dual CCD X3D processors. Some Reddit posters claim that it works better than the Windows Game Bar in identifying what processes should be pinned to the vCache CCD vs the frequency CCD.

https://www.reddit.com/r/ASUS/comments/12qjzgz/what_does_the_x3d_core_flex_gaming_preset/?rdt=56675

[dashky]

I have a Ryzen 7800x3D on an ASUS X670E-F motherboard
but the thing is that my PC keeps crashing
I'm afraid I'll have to disable the 3dvcache algorithms
I assume that this will disable the 3dvcache, am I wrong?

[FunkZ]

Can you post a screenshot of BIOS or link to manual description of the BIOS setting you are referring to?

From what I could gather this ASUS setting ONLY affects those using a dual CCD X3D processor (ie. 7900X3D or 7950X3D) as it has to do with core scheduling. Since the 7800X3D has only a single CCD it would not have any effect.

[dashky]

[FunkZ]

That is the same manual entry I found on ASUS site and it does not mention 3DvCache.

Per the Reddit post I linked previously some have used this setting to control core scheduling.

It has nothing to do with your 7800X3D vCache.

[dashky]

Ok, I understand. I'll check to see if it doesn't crash anymore.
It usually crashes when I start the system and it has to load all the programs.
It freezes and doesn't let me do anything.

[FunkZ]

I would suggest to "Load Optimized Defaults" in the BIOS and see if stability improves.

[dashky]

I'm afraid this processor came from the factory like this and crashed from the first few days
I'm trying to find a solution

I have even tried to lower the speed of the RAM and CPU but nothing

[FunkZ]

Ok, how about you start from the beginning. Your post should go something like:

I have a new 7800X3D and it is unstable.

My system specs including all hardware are:

My BIOS version and other driver/software versions are:

Here is what I've tried so far that didn't solve the problem:

[dashky]

Hi, I finally adjusted the curve optimizer to positive 50 and it seems to be stable now

I think this silicon didn't come out too good
Thanks for trying to help me. Regards

[FunkZ]

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@dashky wrote:

adjusted the curve optimizer to positive 50 and it seems to be stable now

---

Wow, should not have to overvolt a stock CPU to keep it stable. This will negatively impact operating temperature and shorten the chip's lifespan.

[dashky]

But it also lowers the frequencies. I hope it's not negative.
I'll try to adjust it to 45 just in case.

[FunkZ]

There's no reason a stock processor should be unstable. Either the chip is faulty or there's something else wrong with the system or settings. Since you haven't posted what those are there's limited things to suggest, but overvolting would be the last. If your goal is to workaround whatever is going on by reducing the operating frequency a better way to do that is lower the PPT limit or enable ECO mode.

[dashky]

Ok, I'll try activating the ECO mode to see if that solves it.

but the BIOS options are all factory default
the only thing I have set is the EXPO profile of the ram at 6000mhz but the ram is not the problem

WINDOWS 11 and RYZEN 7800x3D in a ROG STRIX X670E-F and Kingston Fury Renegade RGB 6400MHz CL32

BIOS 2506

[dashky]

Well after doing tests I deactivated the CORE PERFORMANCE BOOST so that it goes to base frequency and I was able to put the CURVE OPTIMIZER in positive at 25 or 30 and it was stable

[dashky]

because I have noticed that I had the SR-IOV option activated in the PCI options
That couldn't be the reason for the instability, right?

[dashky · Accepted solution]

Well, in the end it seems that it was the speed of the RAM and nothing to do with the processor
**bleep**ing RAM