[SOLVED] B250M-HDV M2 PCIE Bandwidth

[woobunto]

Mother Board Info: https://www.asrock.com/MB/Intel/B250M-HDV/index.us.asp#Memory Mother Board Manuel: https://download.asrock.com/Manual/B250M-HDV.pdf

My PC: CPU i7-7700 GTX 1080 (Installed on the PCIE 3.0 x16 slot)

Question: I plan to add a M.2 PCI Express storage since the M2 Ultra module supports up to Gen3 x4 (32 Gb/s). Does it occupy my GTX 1080 GPU bandwidth?

I searched all over the internet and I find various info which can't be verified against the user manual: 1. M2 PCIE uses CPU PCIE not the GPU PCIE but the user manual doesn't say 2. M2 Ultra module uses PCIE 3.0 x 4 so it will occupy some of the PCIE 3.0 x 16 bandwidth dedicated to GPU; however, the user manual isn't clear on this.

TIA

 

[rocktalkrock]

The x16 slot used by the graphics card does not share any bandwidth with the M.2 socket, it connects directly to the CPU. Below is a good block diagram of the Intel B250 chipset showing how everything connects.

 

[woobunto]

The x16 slot used by the graphics card does not share any bandwidth with the M.2 socket, it connects directly to the CPU. Below is a good block diagram of the Intel B250 chipset showing how everything connects.

Thank you so much