Question Does anything in Windows itself indicate if it's booting in AHCI or RAID mode?

[Cyber_Akuma]

Is there any way in software to tell if my Windows 10 install is currently set to AHCI or RAID mode? All I can find when I Google about it is going into your BIOS (this does not help me as my OS SSD is being read through a card that I am not sure if it's set to AHCI or RAID mode) or a shutdown command/registry edit to use to switch modes. I need to find out what Windows itself is currently set as through software.

 

[Newtonius]

If you haven't done anything to it since you got it, then your motherboard is most likely in AHCI mode by default. Most consumer boards are like this since RAID is generally a non-standard setup mode. But if you still want confirmation, try this:
https://answers.microsoft.com/en-us/windows/forum/all/is-ahci-enabled/4463a2dd-1a3d-4bfc-b7d5-736c16cfa53d#:~:text=Click the arrow next to,AHCI mode is properly enabled.

 

[Cyber_Akuma]

Yeah, but it's not connected to the motherboard. This is a used workstation that came with a 15000RPM SAS drive, which connects through a PCIe card since the motherboard itself has no SAS inputs. I bought a small SSD to use for the OS instead of the HDD, but the only available port at the time was the SAS/SATA connector coming out of the card so I just used that. The card does not appear to let me configure it or enter it's BIOS in any way so I have no idea if it's operating under AHCI or RAID mode. I want to move the SSD over to the board's built in SATA connectors without having to reinstall Windows since the card is clearly bottlenecking the SSD, especially when both the SSD and HDD are being read/written to at the same time and didn't want to go through the steps to make Windows change if it's booting under AHCI/RAID mode if I don't need to since that has been hit-or-miss if it renders Windows unbootable to me in the past.

 

[Bob.B]

Yeah, but it's not connected to the motherboard. This is a used workstation that came with a 15000RPM SAS drive, which connects through a PCIe card since the motherboard itself has no SAS inputs. I bought a small SSD to use for the OS instead of the HDD, but the only available port at the time was the SAS/SATA connector coming out of the card so I just used that. The card does not appear to let me configure it or enter it's BIOS in any way so I have no idea if it's operating under AHCI or RAID mode. I want to move the SSD over to the board's built in SATA connectors without having to reinstall Windows since the card is clearly bottlenecking the SSD, especially when both the SSD and HDD are being read/written to at the same time and didn't want to go through the steps to make Windows change if it's booting under AHCI/RAID mode if I don't need to since that has been hit-or-miss if it renders Windows unbootable to me in the past.

Some reading.
https://www.mysysadmintips.com/wind...om-raid-to-ahci-without-re-installing-windows

 

[Cyber_Akuma]

Some reading.
https://www.mysysadmintips.com/wind...om-raid-to-ahci-without-re-installing-windows

Yes, I know how to change the mode, there are multiple sites on that. I wanted to know if I can find out if Windows is currently running in RAID or AHCI mode to know if I even need to do that in the first place.

 

[Deleted member 14196]

I think you could tell in the registry. You can edit the registry to enable it

https://www.partitionwizard.com/partitionmagic/enable-ahci-after-win-10-installation.html