9950x3d 3D V-Cache not always enabled on startup?

[TheSoupladel]

I had posted about this chip previously but the problem i am experiencing is different to the original so figured i'd would make a new post.

In essence, the 3D v-cache service is not automatically activating from start up everytime. I have tried several things to rectify this and about the only thing i have been able to do that is remotely reliable is to set set the service to automatic with a delay

I am on a fresh install of Win 11 Pro with the following hardware - Ryzen 9950x3d, Asus Crosshair X870e, 2x 32Gb of Corsair Dominator Titanium 6000 c30, Asus TUF 4090 oc, Corsair H1000 1000w, Samsung 9100 2Tb.

When i say i am on a freshh install, the boot drive has been wiped and a fresh install of win 11, associated drivers have been installed direct from the manufacturer, Steam, Icue and stream deck have been installed and thats it. I haven't installed Ryzen Mast, i haven't installed any of the software i thought was causing a problem (such as Winaero etc...) I haven't even installed Cinebench or HWInfo.

So does anyone have any suggestion as to why the v-cache service isnt always loading?

 

[Avathar77]

How do you know it is not loading?

EDIT:
Do you mean "AMD 3D V-Cache Performance Optimizer Service"?

 

[TheSoupladel]

By opening Task Manager and ordering the processes alphabetically.

In the various installs of windows i have tried previously, I have had Ryzen Master installed so i have been able to identify which CCD is being used whem i launch a game which helps to identify whether the 3D V-cache service is present or not

EDIT: Exactly that in addition to identifying which CCD is in use

 

[sativa]

I would assume 3D v-cache will only trigger when a game is activated. For 9950X3D chips, it tends to trigger via GameBar being on, which itself, recognises a game has been started.

 

[TheSoupladel]

I would assume 3D v-cache will only trigger when a game is activated. For 9950X3D chips, it tends to trigger via GameBar being on, which itself, recognises a game has been started.

Logically what you have said makes sense but that is not my experience.

If the 3d v-cache service is not active or present in task manager before a game is launched, it doesn’t become active despite being detected in game bar. As a result, the game launches on the non-x3d ccd cores (i.e ccd 1) and makes the x3d ccd cores inactive (ccd 0). Even repeated opening and closure of a game doesn’t make the 3d v-cache service become active, it takes a manual activation of the service before that happens.

what makes this all the more confusing, at least from my standpoint, is in the event the 3d v-cache service is active at the start of windows 11, everything works exactly as it should.

 

[TheSoupladel]

To be clear I have set "CPPC Dynamic Preferred Cores” to “Driver” as I was advised on my previous post

 

[sativa]

I recommend you try the AMD forums/support