I found that post too but it unfortunately didn't work for my setup (Intel Xeon E-2246G and SuperMicro X11-SCH-F). This is what my lspci output looks like.
00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:01.0 PCI bridge...
So I did confirm that my switch qsfpplus ports are configured correctly and the switch does detect the links at 40Gbps but when I do iperf3 testing between hosts connected to the two ports I'm seeing only about 2-3Gbps. I confirmed hw switching is enabled on all the ports to ensure the CPU is...
I'm trying to get my Mellanox ConnectX-3 dual 40GbE NIC (already set to Ethernet mode) to work in Proxmox but the system is showing the NICs are not active. Is there a known way to make these cards work in Proxmox?
EDIT: Ok I got the NICs to show as active by setting them to auto start...
Sorry I have no additional numbers other than what I posted. You'd need to extrapolate from that. My system had 8 sticks of DDR4-3200 RAM, 3 GPU's , an external SAS3 HBA, and a dual 40GbE NIC for reference.
At the time I posted this with the configuraton as outline in the OP the numbers were as follows:
Idle power usage with array disks spun down = 165 watts
Idle power usage with all 16 array drives spun up = 225 watts