I didn't have enough time, so I tested it simply. I modified the boot configuration, but this time, it comes out as two screen in the gassetup. I can't even enter the front end.
When I install,
1. I plug LCD monitor(hdmi) and I set install usb to first boot sequence and power off.
2. I plug PVM monitor(vga) and I install to ssd.
When installed in the same way as above, there was no problem with other systems.( i7 7700, z270, r5 430)
I'll try reinstalling it.
ps. Can I use nvme or m.2 type ssd?