New machine for Resolve

[Peter Berg]

I have to report that the P9X79 WS is possibly not a good idea.

I picked one up and am running into PCIe lane problems. I am trying to run the 2 Nvidia cards and a RED Rocket. This board will not let you run 2 x16 cards and a x8 card. It is slowing down one of the Nvidia cards to x8.

I can’t get a clear awnswer from Asus, but it seems that the x16 and x8 slots are sharing PCIe lanes and you will not be able to run the 2 Nvidia cards and a RED Rocket at full speed.

Looking at the P9X79 PRO specs it seems to say that you can run this configuration (as one of the x8 slots seems to be independt from the other 2 x16 slots).

Just a warning.

-Peter

[Toby Tomkins]

You really don’t need the full x16 lanes for each card. Also if you have gen 3.0 PCIe cards, x8 is the same as x16 gen 2.0.

[Peter Berg]

Hi Toby,

So I was able to test the P9X79 PRO board. With that motherboard I was able to get all my PCI cards (2 Nvidia cards and the RED Rocket) to run at full speed. In the P9X79 WS one of the Nvidia cards will only run at x8 instead of x16. I confirmed this by testing, looking at the specs and talking to ASUS.

So can you let me know what the advantages of the WS board are over the PRO? From what I can see, the PRO board is actually a better choice. I am trying to see what the WS board will do for me. If it truly had more PCIe lanes it would be great, but from what I can tell, you actually have less independent PCIe lanes.

thanks for your help,
Peter