Intel Management Engine (ME) Interface driver is for all our H55 models....
Okay, but one of the confusions is that this supposedly applies to P55 boards. Some P55 boards have the P55 chip but others, like mine, have just the H55 chip.
If you don't install it, you will find the “PCI simple communication controller” with question mark in Device Manager.
I was under the impression that, on my and other P55 boards, HD audio (apart from perhaps the inclusion of BluRay) was already provided for, as part of the Azalia onboard audio option, together with the Microsoft UAA driver. Therefore, if you disable Azalia in the BIOS, you'd simply be able to install the Windows standard audio driver for the PCI soundcard you're using and deliver instead the audio according to the provisions of that third-party PCI card. That's the way
I've got it planned, anyway. I would hope that, in disabling Azalia in the BIOS, I'll not end up with a permanent question-marked PCI Simple Communication Controller in Device Manager. I did, for a moment, wonder whether the way around it would be to install the Intel ME driver and to disable Azalia in the BIOS but then also to disable PCI Simple Communication Controller in Device Manager, but I think the next quote from the technical advisor makes that all completely unnecessary.
P55-US3L rev2.0 does not need to install this driver. It will be removed from our website.
I presume "it" means "this Intel ME driver, in the case of the P55-US3L revn. 2.0"? A bit ambiguous, that. It's actually revn. 2.1 that I've got. I'm not sure if Gigabyte ever released a revn. 2.0 in Europe. The revisions in Europe appear to have been 1.1, then 2.1. Apparently, there exists a 2.3 but 2.3 doesn't seem to be available in Europe. I tried for a long time to get a revn. 2.3 but was unsuccessful. None of the retailers had any.
But, like you say, DM, it very much looks like I'll not need to install it. Good.