Anandtech Article
In this piece we are going to look at both the Z170 chipset itself, the benefits that come along with using Z170, and then the motherboards that are set to launch equipped with it. Intel’s details about the chipset have been some of the briefest we have experienced in any recent Intel launch, although we have been able to piece together various aspects of the design from a number of sources. We have been promised more detail about the system during the Intel Developer Forum in mid-August, to which both Ryan and I will be attending and asking plenty of questions. A lot of the detail about Z170 in this piece is mirrored in our main Skylake review as well.....
~One big shock will be for Windows 7 users. By default, the Z170 chipset and BIOS will not support full USB 2.0 Enhanced Host Controller (EHCI) mode. This means that for a number of circumstances, USB devices will not work unless an XHCI environment in play.~
!!!!Navigate to BIOS
Enable ‘Windows 7 Installation’ or ‘EHCI mode’, Save and Exit.
Have your Windows 7 image on an optical disk. USB sticks will not work!
Install the OS as normal via the optical media. Install OS drivers/USB 3.0 drivers.
Disable the BIOS option.!!!!!!!!