Hi,

After 3 day I still can't determinate why the first core of my CPU is running at 100% after a while (~5s - 4 minutes) of playing 4k videos on youtube in Chrome, Opera or Edge, making the entire operating system unstable because it became extremely slow and even the mouse lags when this happen. No matter what amount of cores I assign to the VM, the result is the same. The system have enough Hz to handle the video because it only needs a ~10% to play it and when the first core goes al 100%, it goes at ~15%. The OS stabilizes only when I close the browser.

 

My system

CPU: Xeon E5 2670 V3 ES

Motherboard: Asus X99 Deluxe

GPU slot 1: Gigabyte Nvidia GT 210 (Dedicated to Unraid)

GPU slot 3: Asus Nvidia GTX 660 (VM - Windows 10)

 

I have enabled on bios VT-d, ACS, Intel Virtualization Technology. I tested all the combinations of the USB configurations (xHCI, EHCI, etc).

I reset the bios, upgrade it to the latest version, downgrade it to a year old version.

Switch GPU slots, change GPUs (to an Asus Nvidia GT 730 and a GT 720).

Used Unraid 6.2 beta and 6.1.9

Enable/disable ACS override.

Try another windows installation.

(and a lot of other things)

 

The PCIe slots have their own IOMMU group and I assigned graphic card and sound card from the same slot.

 

I'm running out of ideas now and any suggestion will be appreciated.

Thanks!

 

 

PS: I can't write english too well x)

Have you checked your driver of the Nvidia Cards?

Is there only a problem with the 4k videos? What happens, when you start a 3D Game?

 

 

Hi chvb, thanks for the reply.

 

Yes, I have upgraded all the drivers through windows update.

I haven't tested a game get but it happens too when I do a GPU benchmark (FurMark) so I think that the problem is related with that 

ok, you said, that you have updated the driver with windows Update.

As i understand you have only the windows driver for your nvidia device installed?

 

Please download and install the nvidia driver.

Please report back.

Oks, I will update it through Nvidia website and reply back, also with the diagnostic zip.

 

Thanks!

The problem persist after the update of the GPU drivers  :'(

 

I attach the system diagnostic file if it helps.

tower-diagnostics-20160427-1336.zip