Windows 10: How can I solve BSOD after enabling RAID in ASUS UEFI? (Z390 chipset)

Hi, I'm trying to use my spare 128GB SSD to accelerate a secondary 4TB HDD that I do alot of reading from.
Everything I found online makes the process of setting this up sound easy.

However the moment I enable Intel RST in the bios ez mode, OR, switch from ACHI to Intel in the advanced mode, and then shows RAID then listing all my drives, my reboot leads to the blue screen of death. This is a fresh rebuild that is otherwise working great. Just trying to speed up the 4TB drive.

Note: RST software is already installed on my Windows 10 but I don't have the "Accelerate" option available yet - I think I have to pass the bios properly first.

Can someone please assist? I've no clue about what could possibly be causing the failure.

:)

 

Trouble installing windows 7 on RAID in UEFI

As the title says, I'm trying to install Windows on a RAID array in uefi on my Maximus V Formula. When using legacy ROM I can install just fine but I go into CSM and change settings to UEFI only, I can build the array in the UEFI Raid driver (IRST tab in "BIOS") but the array does not show up in the boot menu and when I try to install windows (boot from UEFI DVD drive), The drive does not show up in the Windows install. The next thing I tried was to enable UEFI and legacy oprom in CSM, boot from UEFI DVD drive and install to the RAID array (probably detected by legacy oprom) and it will install. After first reboot, Windows Boot manager will show up as an option in the BIOS boot menu so I set that as first boot device and reboot. I will get to the starting windows screen and then BSOD (too quick to get codes) The last thing I tried was Changing to legacy mode and installing windows to a different drive. once installed, I initialized the Raid array as GPT and rebooted, changed csm back to UEFI only but they RAID array still doesn't show in the boot device list so I repeated the earlier process hoping that It might work because I had initialized as GPT but it still BSODs on starting windows screen. Any help or suggestions would be greatly appreciated

 

Trouble installing windows 7 on RAID in UEFI

I think you were on track with your first try. Windows installer probably needs the RAID driver in order to detect it on install.

 

Intel Z390 Express Chipset Detailed

Anandtech seems to suggest there will be 30 HSIO lanes, same as the Z/H370, although configured differently. Intel Releases Z390 Chipset Product Information: New Motherboards Inbound
The USB 2.0 ports are not part of the HSIO, as USB 2.0 is not considered high speed any more.