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PKost2
Novice
1,872 Views

Intel RST - disk shows as "Incompatible" in BIOS

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I've got a fairly old MB, ASUS P5B-E with ICH8R chipset, and Intel option ROM version 6.0.0.1017.

For a long time I had 4x500Gb drives configured as Matrix RAID (RAID0 and RAID5), working without any problems under Windows 7, booting from RAID0.

And today I did two things simultaneously:

1. Added a SanDisk Extreme 2 240Gb SSD

2. Installed Windows 8.1 on it

And in the process of installing, Intel ROM on boot started to show RAID disks as "incompatible", and "No RAID arrays defined".

Removing SSD does not solve anything.

Another HDD on the same controller is shows as Non-RAID disk, as it should, only those which were in RAID are "Incompatible" - incompatible with what I wonder?

What is surprising, however, is that from Windows 8 itself both partitions are seen and working properly - it's only BIOS which can't see them, and I cannot therefore boot into old Windows 7 installations.

There are no separate BIOS updates on Intel site, and no BIOS updates on ASUS site for a long time.

Is there any known way to solve this? What could cause BIOS to stop recognizing the drives?

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1 Solution
PKost2
Novice
871 Views

Problem was solved by flashing modded BIOS with Intel ROM updated to version 7.5.0

http://www.win-raid.com/t459f38-After-Win-install-disks-show-as-quot-Incompatible-quot-in-Intel-RST-... msg7293 After Win8.1 install - disks show as "Incompatible" in Intel RST BIOS

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6 Replies
Silvia_L_Intel1
Employee
871 Views

Hello CavalerPk, I'm sorry for the inconvenience that you have faced with your system.

I would need you to please send me a picture of the status of the RAID once you access the RAID BIOS on your computer. I would like to see if it is possible to recover the array on its previous state, since this type of status is unrecoverable.

I recommend you to back up all the information before performing any more troubleshooting.

PKost2
Novice
871 Views

Hello sylvia,

As I mentioned, maybe not clearly - if I boot into Win8, I can see RAID and its contents without any problems, so data is not lost, at last for now.

I just cannot see it from BIOS and therefore cannot boot into system installed on RAID.

I guess maybe drivers which came bundled with Win8.1 "upgraded" some internal RAID markup in the way old BIOS (Intel option ROM to be correct) cannot recognize it any more.

In this case I wonder which version of ROM could recognize it and maybe I can flash it somehow...

KBenm
Beginner
871 Views

you might get better answers here: http://www.win-raid.com/ Fernando's Win-RAID Forum (AHCI/RAID Drivers - BIOS Modding). They even have a dedicated forum for the Inter RAID drivers: http://www.win-raid.com/f23-Intel-AHCI-RAID-Drivers.html Intel AHCI/RAID Drivers

PKost2
Novice
871 Views

Yes, I've found that forum, and asked there as well. Though I wanted to see if there is some more official point of view on that matter.

Anyway it doesn't look like drivers problem - more of a BIOS problem.

PKost2
Novice
872 Views

Problem was solved by flashing modded BIOS with Intel ROM updated to version 7.5.0

http://www.win-raid.com/t459f38-After-Win-install-disks-show-as-quot-Incompatible-quot-in-Intel-RST-... msg7293 After Win8.1 install - disks show as "Incompatible" in Intel RST BIOS

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Silvia_L_Intel1
Employee
871 Views

thanks for letting us know.

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