I'm the sucker who ordered one of these. It's still on the slow boat from China though.
My use case is, perhaps, unusual. I have a 32-core dual Opteron that is PCIe2 only. So, an x8 card is going to max out at about 25Gbps. In order to go faster I need an x16 card since I only have the one slot free and can't do 2 bonded x8 cards. I doubt I'll get even 50Gbps out of this but if I can do better than 10Gb single-stream or better than 20Gb aggregate, I'll be happy.
Now, what to do about the heatpipe... Since I'm only going to lightly load this thing, I wonder if the "cold" end of the bare heatpipe will be able to radiate enough heat and/or conduct enough away.
I understand that it is possible to monitor the temperature of ConnectX cards. How does one read the temp sensor? I've poked around the /sys tree for my ConnectX-3 card but couldn't find anything that looked like a temperature sensor. Does the inbox driver expose the sensor or does one need to use an MFT utility to get at it (mget_temp)?