PCI-e 3.0 and 10GB network connection

F5F Stay Refreshed Power Users Networks PCI-e 3.0 and 10GB network connection

Waab
Junior Member

07-04-2016, 07:27 AM

Hello everyone, the issue is whether a 10GB network card in a PCI-E Gen 3.0 slot will deliver the full 10GB speed. For your NAS server running Truenas, upgrading to a motherboard that supports Gen 4.0 might be necessary.

Waab

07-04-2016, 07:27 AM #1

17_Twizzlers
Junior Member

07-04-2016, 11:15 AM

PCIe 3.0 supports up to 8Gb/s per lane, meaning a 10Gb card will perform nicely even with double the lanes.

17_Twizzlers

07-04-2016, 11:15 AM #2

PCIe 3.0 supports up to 8Gb/s per lane, meaning a 10Gb card will perform nicely even with double the lanes.

MagmaSTG
Junior Member

07-24-2016, 10:12 AM

There are four 3.0 cards similar to the Mellanox CX311A available. PCI_e speeds in each lane are exceptionally quick. Significantly higher than SATA III, which can reach up to a theoretical 750MB/s. Keep in mind your motherboard's lane capacity if you're using a mainstream platform. With an X16 GPU, you might need to work around the chipset or adjust your GPU to x8, and you should test it to see if it affects performance.

MagmaSTG

07-24-2016, 10:12 AM #3

Skipper22778
Member

197

07-24-2016, 05:27 PM

I possess several NICs utilizing the Intel X550 chipset. They operate at PCIe 3.0 x 4, and achieving full 10gb speeds remains unaffected.

Skipper22778

07-24-2016, 05:27 PM #4

I possess several NICs utilizing the Intel X550 chipset. They operate at PCIe 3.0 x 4, and achieving full 10gb speeds remains unaffected.