Thanks Fernando.

I got the BIOS file from here (you have to be registered in order to download):
https://www.jzelectronic.de/jz2/index.ph...D0mYWN0PTIwMzYx

Okay, I'll try to investigate that to the level my skills allow me.

Just one quick remark to your previous answer:
When you say "The best option would be the RST v11.2.0.1527", wouldn't that mean that I will lose the EFI functions with that RAID ROM since that version is only a RST and not a RST(e) driver module?

Enjoy your holidays.

@Fernando:

Yes I apologize...I expressed myself poorly.

What I meant to ask was, what does the absence of that additional SCSI filter driver named iaStorF.sys, mean for a system using the Intel RST v11.2.0.1527?

I understand that the "TRIM in RAID0" function is still supported, but what are the consequences of the lack of presence of an actual Intel RAID ROM or EFI "RaidDriver" within the BIOS, using Intel RST v11.2.0.1527 when running a RAID configuration system? I even tried to google up this topic, but I can not fully understand what the benefits of having RST(e) vs RST are...

@Fernando:

Tremendous many thanks for your reply. That explained everything I needed to know :)
Thank you!