100 series motherboard installation Win7 mouse failure how to solve

The new generation of Skylake corresponding 100 chipset brings a lot of practical new features, support DDR4 memory, SATA-Express, M.2 interface and so on. But! Yes! The original EHCI master is also replaced by the XHCI master. What is this?

I believe that some users who have already started the 100 series chipset have encountered this problem —&mdash When installing the win7 system, the mouse/keyboard/U disk connected via the USB interface are all abolished...

After some careful investigation, the user is still 乖♂ win win win win8/win10 (Microsoft and Intel look at each other ~ cheers!!) & mdash; & mdash; I believe many users are using This method is solved.

However, some users are still accustomed to using win7 system, then today Xiaobian will give you some small Tips, so that you can use the USB interface of win7 system under the 100 series chipset.

Why does the 100 series motherboard U disk pack Win7 mouse and keyboard fail?

Skylake's generation chipset Intel replaced the EHCI master with the XHCI master, and the Windows 7 system was originally without the XHCI master driver, so the pit was dug up.

Win10 and Win8 are natively equipped with XHCI drivers, so users who install both systems will not have to worry about USB failure. In fact, Microsoft is forcing everyone to upgrade small means. And in recent days, Intel, AMD, and Qualcomm have stopped supporting Win10 systems from the next generation of CPUs. What do you think?

What are the EHCI and XHCI ghosts?

XHCI (eXtensible Host Controller Interface) is a USB host controller developed by Intel. The USB protocol of this generation of 100 series chips adopts XHCI master control and is oriented to USB 3.0 standard. It is also compatible with devices below 2.0.

Previous generations of Broadwell used EHCI masters, mainly for the 2.0 standard. The native win7 system only has EHCI driver and no XHCI driver, so the consequence is ~ you know.

Since it is known that the failure is due to the lack of drivers, it is not good to install it. Certainly netizens will say that you are stupid and do so many things! Please don’t hesitate to spray Xiaobian~ and look at it first. Look at the logic diagram below.

Is there a place to see the cockroaches? If it’s so simple, it’s so good.

However, the mouse and keyboard connected via PS/2 can work normally, but the users who use the PS/2 interface on the new platform are not too many, and even if your mouse and keyboard are PS /2 interface, the USB interface on the motherboard is still malfunctioning.

But if there is a PS/2 mouse and keyboard, then the problem is solved a lot. After installing the Win7 system, log in directly to the official website of the motherboard brand, and find the corresponding motherboard driver to download and install.