Hi everyone, Merry Christmas!  I'm running a X299 Dark with a i9-9900X processor set on auto for multiplier, G.Skill 3200 memory, EVGA Titan X.  Sold my EVGA X99  Classified with 6850k.  The problem I am having is slower performance with the X299.  I like to just run the 3Dmark Firestrike test and I score mid 13k, I use to score mid 16k with the X99 board.  The graphics test 1 and 2 and physics seem on par but the combined test is horrible averaging 20fps or so, I use to see 40's on the X99.  The gpu usage never really goes above 50% on the combined test.  I cant figure out why this new board is slower and have tried everything I can think of.  Also tried new windows and driver install, different bios versions, resetting bios and making sure every things set right, different slots, different power supply, re-seated cpu.  I can hit 16k's if I set the multiplier for the i9-9900x cpu at 46 but I didn't think I would have to push it that fast to score equal to a X99.  I'm out of ideas.  Is something bottle necked?  Thanks.

Just tried disabling them, hardly any difference in score.  Also, PCI-E slot 1 is being detected in Windows 10 as slot 6, and slot 6 as slot 1, the other slots appear to be ordered correctly.  It's messing up the video card ordering.  

Even 16K on your last set-up seems a bit low, I got 16K on a i7 4790K and GTX 1080.
https://www.3dmark.com/fs/12566027
 
Your 6850K was more than enough for that Titan X, you are actually in need of a GPU upgrade more than anything. Here is when I upgraded to a i7 9700K and RTX 2080:
https://www.3dmark.com/fs/20572464
 
I just checked 3DMark results to see how you compare and I noticed you are the only one with a i9 9900X and an original Titan X. If that tells you anything... it suggests your video card needs updating. Your i7 6850K was overclocked to 4.5GHz on that 16K test you mentioned, so I would keep that in mind when comparing the results.

6850K results:
https://www.3dmark.com/fs/16761033

9900X results:
https://www.3dmark.com/fs/21212533
 
You can see that the 9900X scored 7K higher on the CPU score. But your GPU score was a little higher on the i7 6850K and you may have been running an overclock on the GPU at that time, it does not always show on the 3DMark results.

Victorg25
This problem happened more than three times.

what problem are you referring to ?