Times have changed and the latest Windows Operating Systems are very picky regarding third party storage drivers. That may be one of the reasons why many chipset manufacturers have stopped developing new or updated own storage drivers.
If you should be satisfied with the v15 platform in-box Intel RAID driver, you can update the Intel RAID ROM module of the BIOS to a v15 platform as well.
You can find the download links to the Intel RAID drivers v14.8.18.1066 WHQL within the start post of >this< thread.