I just spent 4 hours trying to install this card (the "for Desktop" version).
Hardware (custom built desktop): Gigabyte GA-Z87-HD3 with an Intel 4770k CPU.
OS: Windows 7 SP1 (x64).
It only showed up as "SM Bus Controller" in Window's device manager and installing the corresponding drivers didn't help. It was slotted in one of my PCI Express x1 slots and I even tried the second one which didn't fix the issue.
I solved the issue by slotting the card in one of my PCI Express x16 slots (I don't understand why).