RAID0 drive doesn't show up in windows installation.

The root of the problem is that there is NO "standard" way to do any RAID. So, Windows and its Install systems cannot deal with any RAID system unless you provide the required drivers for that device. Moreover, there has to be a way to load that driver EARLY in the boot sequence so that the RAID system can be used both to boot from and to run from. As a part of this, that same driver must be used at the very beginning of the Windows Install process to access the RAID array.

Windows has known about this and provided the tools you need for all of that for many versions past. Much of what you need is on pp. 35 and 36 of your manual, as Calvin7 says. In general, you need to prepare a USB mem stick that contains the required device drivers, and those currently are on the CD that came with your mobo. You don't have an optical drive. So, borrow another computer and use the process on p. 36 (lower down) of your manual to copy the stuff needed from that CD to your USB stick.

NOTE: you appear to have only the two HDD units in the RAID0 array. If that's the case, skip this. BUT if you have any other storage drive installed in your system, disconnect that before starting the Install process. Having only ONE "drive" (the RAID0 array) at installation time will make life simpler for you some time in the future. AFTER the installation is complete, you can shut down and re-connect the other drives.

Now take the USB stick back to your machine and start the Windows 10 Install process. Make sure the USB stick is plugged in. WATCH the prompts very carefully. VERY early in the process you should see a prompt to press the "F10" key if you want to install any extra device drivers. If you miss that or ignore it, it will disappear after a small wait. Do NOT ignore - press "F10". This will open up a set of prompts for you to tell it where the drovers are that you want to add, and they are on that USB stick. See your manual, p. 36, for exact details of the folders involved. It will load the first driver you specify, then come back and ask whether there are more. Keep it up until all drivers you need (p. 36!) are done, then tell it no more to do. That will return you to the main Install thread.

At this point the Install process will use those drivers to access your RAID0 array and be able to do the Install to that system. Moreover it will arrange that those drivers are always loaded at every boot so you CAN boot and run from the RAID0 array. From here on the rest of Install is normal.