ROG MAXIMUS Z890 HERO with ASUS HYPER M.2 X16 Gen5 Card can't show 4 disk

[aivatnt]

Why the ROG MAXIMUS Z890 HERO with ASUS HYPER M.2 X16 Gen5 Card does not show the 4 drives on it, it only shows three. In the BIOS settings under PCIe Bifurcation you can only select PCIE x8x4x4 mode.

[Jiaszzz_ASUS]

Hello @aivatnt 

Thank you for reaching out to us.
Could you kindly confirm the current BIOS version and specify which PCIe slot the Hyper M.2 x16 Gen5 Card is installed in?

To provide you with accurate information regarding specifications, I have reached out via private message to confirm the serial number of your motherboard.
Please note that serial numbers are considered personal information and should not be disclosed in public forums.

Thank you.