Boot takes very long, not all monitors connected

[Azazael]

Hi Spirit

My system does the same thing as yours. Similar specs

I have the main monitor via HDMI from the RTX3090 and two USB monitors
either side of it via display link. The bios posts fine and has no errors and the motherboard LCD shows CPU temp.
So, it's not hardware.

Things that work for me.:
If you go into sleep mode as opposed to full shut down windows 11 starts fine except it chooses the first USB monitor as its primary monitor.
If I detach the two USB monitors the pc boots fine. I recconect them after boot

I dont think it's a Display link fault as once windows is running all works well.

The MSI motherboard SATA ports A and B as the ASMedia ASM1061 SATA controller chip has issues.
See https://forum-en.msi.com/index.php?t.../#post-2107894

After a week Finally solved it : Bios also gave error A2 20% of the time , pointing towards a failling SATA drive. Removed that mechanical drive (1 of 6) and the NVME drive that contains windows 11 boots up every time straight away.


Mainboard: ASUS Z690 MPG Carbon EKX
CPU: Intel Core i9 13900K LGA1700
GPU: Nvidia Geforce RTX-3090FE
RAM: DDR5 64GB PC CORSAIR 5600
SSD: WD Black SN850 2TB SSD M.2 2280 NVME PCI-E Gen4
OS: Win11 Home 64 Bit