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I am trying to use a new NIC in my server however I am getting this message,

"This Solarflare Network Adapter requires the equivalent of 8 lanes at PCI Express 2 speed for full throughput"

I have the motherboard at, http://www.supermicro.com/Aplus/motherboard/Opteron2000/MCP55/h8dme-2.cfm

However I can't find the PCI Express version is it 1 or 2? I suspect 1 but I want to be sure before I buy a new motherboard. Thanks.

Cuntilla
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    From the specifications it's highly likely the board only supports PCIe v1, as v2 got common later. Also, Supermicro would note in their specifications if it was v2. – Sven Jan 21 '14 at 23:10

1 Answers1

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Since the manual doesn't say anything about PCIE 2.0 it is almost certainly v1 PCI-E.

The speeds of 2.0 ports are double the speed. Though the card should work in those slots it may not have enough bandwidth to fully utilize it.

Grant
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