Hello Fernando,

I've a question regarding mod my Z68XP-UD4 M/B UEFI BIOS U1L, I found that both "CSMCORE" & "SataDriver" module are exists.

However, the GUID for "SataDriver" module is starting with "91B4D9C1" but not "90C8D394".

I was able to replace RAID ROM module from the following link

http://win-lite.de/benutzer/fernando/ROM...v12.6.0.1867.7z

So should I suppose to replace RAID ROM module?

Or regardless the difference of GUID of "SataDriver" and replace Intel EFI RAID "SataDriver" module?

Thanks & Best Regards,

Hello Fernando,

Thanks for your prompt reply. As a matter of fact, I'd like to use both of them by changing BIOS setting accordingly. There're both Legacy and UEFI OROM setting in the BIOS.

In another word, I can either select Legacy RAID or UEFI RAID to install OS. But I was originally assume that the BIOS can only either contain "CSMCORE" or "SataDriver" module in BIOS.

I also noticed that other M/B like ASRock Z77 Extreme3 also has both "CSMCORE" & "SataDriver" module too.

I extracted the modules and they are the same RAID version. (11.2.0.1527)

So can I replace both modules with 12.6.0.1867? Does ASRock actually using corresponding module for both "CSMCORE" & "SataDriver"?

As to GUID in "SataDriver" issue, I found that once I replace it, the GUID will change to "90C8D394"?

I was wondering if it is save way to do it? In case the BIOS could not found the original GUID for OROM, could it brick the BIOS? E.g. falls into endless loop?

Thanks & Best Regards,