MSI Z87-G45 UEFI RAID problem

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Nikita Tsytsarkin

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Jan 15, 2014
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Hello I have the following issue:

I want to make RAID0 with 2x 2TB HDD and I have SSD for system volume. As I found out, drive should be connected using UEFI in order to create a partition bigger than 2TB. All my drives are detectible only in legacy mode. There are 2 options in my mobo settings for boot mode: UEFI and Legacy + UEFI. If I chose just UEFI, only USB stick is detected. If I create raid using build in tools it is still undetectable in UEFI mode.

What am I doing wrong?

Thank you
 
Solution
alexoiu


Set SATA to RAID, configure the RAID array, leave the SSD non member, start installing Windows on the SSD in legacy mode, load the RAID driver during the installation. If successful, open Disk management and convert the RAID volume to GPT...
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danny2000

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Sep 14, 2010
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I have the same MB and had the same problem with UEFI Mode; The DVD rom drive would not be detected as UEFI, so what I did was I created a USB Windows 8 installation and that allowed me to install via UEFI:Kingston 8gb usb drive or whatever and then Windows 8 (and or 8.1) creates the necessary UEFI partitions to install 8 or 8.1 onto the drives. I did not do RAID, but I think that your main problem is the same as mine was; The bootable device.
 
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Nikita Tsytsarkin

Honorable
Jan 15, 2014
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It detects USB stick with UEFI mode fine, but not other devices. I need to find a way to make it detect my raid with UEFI, so I can make one 3.6 TB volume, instead of splitting it into 2.0 TB and 1.6 TB volumes.

So it looks like mobo issue? I tried updating BIOS, but it did not help.
 
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danny2000

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Sep 14, 2010
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Normally, RAID is set up as drives of all the same size. I suspect, that you're using a 240gb (or thereabouts) SSD and it is messing things up.

I am not an expert on RAID of any sort, nor have I have set up any at all. However, I do believe that the SSD in the equation is messing things up. Anyone else have any more educated thoughts on this, than myself?
 
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alexoiu

alexoiu

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Nov 1, 2012
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Set SATA to RAID, configure the RAID array, leave the SSD non member, start installing Windows on the SSD in legacy mode, load the RAID driver during the installation. If successful, open Disk management and convert the RAID volume to GPT and format it.
Try and see if working.
 
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Solution
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Nikita Tsytsarkin

Honorable
Jan 15, 2014
5
0
10,510


That is what I was going to do next. I tried loading drivers during installation and formating that drive, but installer split it into 2 drives again. I tried to recreate raid, but it messed up windows installation. Probably windows saved few files on HDD, even though SSD was selected as a drive to install. Reinstalling windows now to check it.

BTW, is there a way to uncheck best solution? I accidentally clicked a link in an email and it selected post which was not a solution.
 
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