There is a serious problem with the INTEL raid

[zcat777]

When a RAID10 disk consisting of four NVME SSDs and a RAID 10 disk consisting of four SATA hard disks exist at the same time, the BIOS system cannot automatically boot to the all system, resulting in a black screen, including booting all external devices and boot selection in the BIOS. You can only select start manually by pressing F8 during the self-test In addition, when SATA has four disks, whether there is a raid or not, the disk read and write performance is significantly reduced

Z690 Strix A WIFI D4, Z790-E,Z790HERO All have this problem

It is speculated that all Z690 and Z790 have this problem

Z690 cannot start after 2004BIOS,This problem does not exist in BIOS before 1703

[zcat777]

SATA read/write speed drops

When deploying 4 SATA SSDs, the read and write speeds drop for a long time. 470MB read and write speeds drop below 200MB, but unplugging a SATA drive from either port didn't slow down the remaining three SATA drives no matter how long they were used. Troubleshooting temperature and SSD cache issues

About not being able to boot into the system
This problem has been communicated with ASUS China's after-sales technical department.
Their tests also confirmed that this problem occurs