950 Pro Inaccessible_Boot_Device on RAID Controller

[GregS0125]

I have a Samsung 950 Pro NVMe M.2 drive that will not work when the Sata controller is set to RAID. What I want to do is boot from the one 950 Pro and utilize 2 850 Evo SSDs in RAID 0, but when I set the Sata controller to RAID I get a blue screen that says "Inaccessible_Boot_Device - Drive locked, please unlock drive and try again. I have the most upto date BIOS, Updated the Samsung Drivers (I think), and yea other things.

CPU: i7-6700k
Mobo: Asus Maximus VIII Hero

 

[alexoiu]

Can you reinstall Windows?

 

[GregS0125]

I can if it is in achi mode anything else and the drive will not show up as a storage device

 

[alexoiu]

Is M.2 PCIE Storage RAID Support set to Enabled in BIOS?

 

[GregS0125]

It is

 

[alexoiu]

What BIOS version running?

 

[okcnaline]

when the Sata controller is set to RAID

Remove all RAID configurations and the 2 850 EVO drives. Install Windows first on the 950 Pro, then set up RAID in the BIOS. Just don't put the storage controller on RAID, because that would make the 950 Pro unrecognized.

 

[GregS0125]

What BIOS version running?

1504

 

[GregS0125]

when the Sata controller is set to RAID

Remove all RAID configurations and the 2 850 EVO drives. Install Windows first on the 950 Pro, then set up RAID in the BIOS. Just don't put the storage controller on RAID, because that would make the 950 Pro unrecognized.

I did something similar to this i removed the drives which rendered them unallocated... then I booted into windows and am in the process of formatting them into a raid array. I will let you know if it is successful.

 

[drtweak]

Future reference or incase what you did didn't work. If you installed windows a AHCI or RAID or what ever and wish to change it to something else FOLLOW THE STEPS HERE FIRST!!!

http://www.overclock.net/t/1227636/how-to-change-sata-modes-after-windows-installation

Just use the windows 7. They should be the same registry settings. Once those are made you can change the SATA mode.

 

[GregS0125]

Yea, booting into windows and creating a striped drive within the OS has worked. Boots up fine with CSM disabled and the raid drives function exactly as they're supposed to.

 

[drtweak]

Sounds like you are doing a software RAID and not a hardware RAID there. Did you make it in Disk Management?

 

[GregS0125]

Sounds like you are doing a software RAID and not a hardware RAID there. Did you make it in Disk Management?

I did make it in disk management. It doesn't seem to perform as a software raid, I am getting a real world performance increase. It is entirely possible though.

 

[drtweak]

For RAID 1 and 0 you won't see a performance difference between software and hardware RAID as their is no overhead. A RAID 5/6 you would see a difference for sure. Onboard RAID and Software RAID both have ups and downs. if your onboard RAID fails or the BIOS gets upgraded or reset you lose your raid and sometimes cant get it back. With windows if windows crashes it is easier to get the RAID back. If you had an add-in raid card, which is usually best, if that card fails all you do is find the same exact one and good to go and moving RAID from PC to PC is as simple as moving the RAID card and drives and nothing else needs to be done (besides the drivers for the RAID card)

 

[GregS0125]

Ahh yea I may add 2 more drives down the road in a raid 5 but that will be much later on i am perfectly content with 2.5 tbs of space at the moment.

 

[drtweak]

yea just keep in mind that Onboard raid still isn't true hardware raid and RAID 5 and 6 still use CPU for the raid power and not an actual RAID card. If you go that route later i would suggest finding either a good used RAID card (I just got a LSI MegaRAID 8888 running 7 drives and it has been great so far) or something new. If you do RAID 5/6 it is also best to get a RAID card with a RAM CASHE and also a Backup Battery Unit OR make sure your PC is on a back up battery.

 

[GregS0125]

yea just keep in mind that Onboard raid still isn't true hardware raid and RAID 5 and 6 still use CPU for the raid power and not an actual RAID card. If you go that route later i would suggest finding either a good used RAID card (I just got a LSI MegaRAID 8888 running 7 drives and it has been great so far) or something new. If you do RAID 5/6 it is also best to get a RAID card with a RAM CASHE and also a Backup Battery Unit OR make sure your PC is on a back up battery.

Thanks for the heads up. I will keep that in mind though i dont plan on doing a large raid setup in the forseeable future just for my games really. But i something changes i will go that route for sure.