Hello,

I've been struggling quite a bit with this board, and the Intel 750 PCIe drive. If I load optimized defaults in BIOS, the drive is detected in BIOS every time with the Samsung drive. Then I boot into Windows and reboot and I load my OC profile, everything is usually good.

...until I go to BIOS to change anything and save. On the next boot the drive is not detected, only Samsung 960 PRO is. It looks like I need to load optimized default, save, boot into Windows, reboot into BIOS, do changes, save the profile -> BAM drive might not be detected anymore. So then I go to step 1 and get the drive detected again. Sometimes the drive is detected by the boot order is incorrect so the Samsung drive is first - usually if CSM is disabled. However changing this, the BIOS tells me I have not done any actual changes?

Running the latest firmware in the Intel 750 but I cannot detect what is causing the issue. Might be some compatibility issue? I have tried with and without XMP and it looks like enabling/disabling fast boot does nothing. Clues? I might now just try installing Windows on the 960 PRO only and get another drive to DIMM.2 as additional storage.

I don't have high hopes on ASUS fixing this in case this is any bug in the BIOS. They had so much issues with the boards being DOA and it's already discontinued.

The components:

W-3175X
Asus Dominus Extreme newest BIOS
6x8 GB Corsair Domionator Platinum DDR4-3200 CL16-18-18-36-2T kit (originally 8x8 GB from my X299 build)
Palit RTX 2080TI with Galax 380W BIOS
Intel 750 NVMe PCIe drive 1.2 TB - Windows installed on this in UEFI mode
DIMM.2 with Samsung 960 PRO 1 TB
Corsair AX1500i
WC on CPU and GPU.