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2 Posts
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4079
October 3rd, 2020 15:00
Dell 9020 AHCI/RAID on boot failure
I purchased a refurbished 9020 SFF, it came with one SSD with Windows 10 pro installed on it. The BIOS version is A25 7/9/2019.
I installed another SSD with a different operating system on it which requires the BIOS SATA mode to be in AHCI only. Currently it is in AHCI RAID on.
When I change it to AHCI, I get the boot device inaccessible if I try and boot the Windows 10 SSD. I've read in a number of places to use bcdedit and set the system to boot into safe mode, then the proper drivers would be installed and then you can switch back to normal boot mode. The commands are issued in an administrator shell.
bcdedit /set safeboot minimal
and bcdedit /delete value safeboot
This does not work, I still get the same error. Further, when I turn RAID back on in BIOS the system does boot into safe mode which to me indicates that the commands were entered correctly.
I've also found posts how to enable AHCI in the registry, and it looks like when I look at the keys it's already enabled.
speedstep
9 Legend
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47K Posts
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October 4th, 2020 00:00
AHCI uses the built in driver
Raid Requires the IRRT IRST INTEL driver which you have not installed.
You cant switch to the intel driver when it does not exist on the drive.
The changing to safe mode wont work when the driver you point to in bios DOES NOT EXIST on the drive.
F6 mass storage drivers are no longer optional. You cannot point to exe, zip, or cab file. YOU MUST extract the driver to the root of USBFLASH drive. The dell exe has an extract option within the file if you run it on a working machine.
https://www.dell.com/support/home/en-us/drivers/driversdetails?driverid=83pmf
This package provides Intel Rapid Storage Technology F6 Driver and is supported on OptiPlex 9020 AIO/9020, Precision M4800/M6800 and PowerEdge T20 running the following Windows operating systems: Windows server 2012, Windows 7 and Windows 8 and 10.
https://dl.dell.com/FOLDER01500192M/24/DRVR_SATA_Intel_A03_83PMF_f6flpy-x64-setup_ZPE.exe
You do this by renaming exe to zip and then use 7zip to extract into the mydocuments folder on a booting system or the root of USB flash drive.
https://www.7-zip.org/download.html
You can just run the exe if your system boots but you will want to do the other Items in my documents and the usb installer.
https://www.dell.com/support/article/en-us/sln302609/how-to-install-the-storage-controller-f6-driver-during-the-windows-installation-setup-process?lang=en
https://www.youtube.com/watch?v=EO48v1XCzWU
billdlv81
2 Posts
0
October 4th, 2020 17:00
When I look at the device manager Intel Chipset SATA/PCIe RST Premium controller is installed already.
I'm not trying to install or use RAID, I want to be able to use AHCI only with RAID off.
It looks to me like when Windows 10 was installed on the machine the BIOS was set with the RAID option On, so that is why the RST controller shows up in device manager.