Z170 Extreme 6 PCIe Link width / speed issues

First time owner of an Asrock mobo, and everything is almost under control.

Thanks for the thread about installing an OS on a PCIe SSD btw. Very helpful!

So my problem is, my 780 Ti link width / PCIe speed is 2X instead of the expected 16X. (I could see this using both CPU-Z and Speccy)

My graphic is in the PCIE2 slot.

I have an Intel 750 PCIe SSD in the slot just below.

I have the latest 2.00 Bios, and speed is setup to GEN3.

Has anyone encounter a similar issue?

Thanks for your help!

 

Hi Bellebite,

As you are using a PCIE slot for your Intel 750 SSD, it is using 4 lanes of a total of 16 lanes that are disponible directly from CPU, and this way the vídeo card is running at X8 (I suppose it's not possible for a Nvidia card to run in X12), so, its all OK.

Only the lanes for M.2 sockets (that are via the z170 chipset) are independent from the direct lanes from CPU, that feed the PCIE slots.

Regards,

Would performance suffer?

I plan to get Pascal the next millisecond that thing is released, so I hope it won't be a bottleneck for this long overdue graphic card update.

In this case, would you recommend that I switch to a Samsung 951 to free all the CPU PCIe lines only for the GPU? (since I am not using any from the chipset now)