AMD Motherboards - BIOS not finding RAID array as a boot option

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BIOS not finding RAID array as a boot option

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=12390
Printed Date: 30 Jul 2025 at 5:58pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: BIOS not finding RAID array as a boot option

Posted By: JasonSafro
Subject: BIOS not finding RAID array as a boot option
Date Posted: 08 Sep 2019 at 1:45am

I created a RAID 1 array in the BIOS RAIDExpert tool. But, it's coming up as a Boot disk option.

I can start the Windows install process and get as far as the Disk Selection screen. When I load the drivers from "SATA Floppy Image ver:9.2.0.120", the Windows installer sees the RAID array disk. Windows can even partition out some of that disk. But, it won't install b\c (paraphrasing here) "BIOS says that is not a valid boot option."

Hardware:
- X570 Taichi
- Ryzen 3600x
- 2 x Samsung 860 1TB SSD, plugged into SATA 3 and 4

Does anyone have advice on what I am missing here? How do I get the BIOS to recognize the RAID array that the BIOS created?

Replies:

Posted By: JasonSafro
Date Posted: 08 Sep 2019 at 10:11pm

I figured out how to get past this. While creating the Windows partition, I had to change the disk from MBR to GPT. Instructions here were generally good:

https://msdn.microsoft.com/en-us/ie/dn938372%28v=vs.60%29?f=255&MSPPError=-2147217396