Sanity Check: PCIe Lanes on SuperMicro X9 Motherboard + NVMe PCIe Card

[CorneliousJD]

Hi everyone, 

 

I have the following setup

 

Motherboard: SuperMicro X9DRi-LN4F+

https://www.supermicro.com/manuals/motherboard/C606_602/MNL-1258.pdf

 

CPU: 2x Intel Xeon E5-2650 v2

https://www.intel.com/content/www/us/en/products/sku/75269/intel-xeon-processor-e52650-v2-20m-cache-2-60-ghz/specifications.html

 

SAS Card: LSI 9211-8i HBA

https://docs.broadcom.com/doc/12353333

 

I am wondering if I buy this ASUS Hyper V2 NVMe to PCIe adapter that I'll have enough lanes to run it in 4x/4x/4x/4x bifurcation and not risk taking any lanes away from the LSI SAS card?

https://www.asus.com/us/motherboards-components/motherboards/accessories/hyper-m-2-x16-card-v2/

 

I have already updated the BIOS to v3.4 so bifurcation is enabled/supported on my motherboard. 

 

I am seeing that each CPU has 40 lanes available and I have two CPUs so I should have plenty of lanes to spare, however I'm not super familiar with the layout of the PCIe lanes and which one links to which CPU etc. 

 

Can anyone help shed some light on this for me?

How many total lanes do I get between my CPUs and my motherboard? 

I couldn't really find info on how many lanes are available on the mobo side.

 

I really just want to make sure I'm not sacrificing performance or ripping lanes away from the LSI card to put in the M.2 card.

 

Thanks in advance!

[JorgeB]

Those boards have plenty of lanes, with 2 CPUs you can fully use all four x16 slots, so as long as one of those is available, and it can be bifurcated it's not a problem.

[CorneliousJD]

2 minutes ago, JorgeB said:

Those boards have plenty of lanes, with 2 CPUs you can fully use all four x16 slots, so as long as one of those is available, and it can be bifurcated it's not a problem.

Excellent, thank you. 

 

And thanks for your help on my SSD trim question too. This is a direct result of your help there.

 

Much appreciated. 

I'll be getting this card and some NVMe drives for cache then.