The case of the disappearing NIC [Solved]

High-Performance Computing Workstations & Servers
1

So I’ve got a HP DL380P G8, I have an Intel X540-T2 in it and all was merry. However, suddenly after about a month it no longer exists. Doesn’t appear at boot either, the iLO reports that there is nothing in that slot.
However if I take the card out and put it in another machine it all works perfectly.

Does anyone have any tricks I could try? I’ve swapped PCIe slots and that didn’t do it. Tried shutting down and cutting the power for a few minutes, also didn’t work.

I’ve also got a second gigabit nic that works fine in all the PCIe slots.

Any suggestions you guys come up with would be appreciated, thanks.

2

Does it stay up for long period of time in the other machines you install it in?

3

You're right, when I chucked it in the other machines I basically just checked to see if it was detected.

When used it just keeps disappearing and reappearing, much like unplugging and plugging in a USB. So it is borked. The HP server must be doing a pretty thorough post check to decide that it is dead and just not bother with it.