Question AHCI o Intel RST Premium

[chinto17]

Hello, I have a Lenovo y520 laptop, I bought a Samsung M.2 NVME SSD that connects to the PCIe 3x4 slot .... and I left the HDD as a storage unit, ... install windows in the M.2 SSD and not I remember what protocol it was, but according to me everything was fine, I installed the Samsung Magician software to manage the SSD and everything normal with the unit information, but recently I updated the BIOS to its new version, and when I restarted I skipped the blue screen, I managed to enter windows in safe mode and then restart so that I would start windows again but recently I realized that in the Samsung Magician says "this unit is not supported", interface "can not be detected" so I want think it was after the restart by the BIOS update, I enter the BIOS and I see that the protocol says Intel RST Premium, what I do not remember if it was with that install windows or by AHCI, when switching to AHCI does not run windows and I skip the blue screen, when I change it back to Intel RS T Premium if I load the windows, how can I solve this? or do I have to reinstall windows ?, I do not have any problem if it is necessary to reinstall windows, but if I would like to know what protocol to use so that everything functions as it should be, that is to say when configuring the BIOS I only see the AHCI and Intel modes RST Premium, which should I choose between those 2? to use the SSD as the windows boot drive and the HDD as storage. I hope you can solve this doubt, thank you.

 

[karenjoly]

I'm not sure how it happened but the system bios seems to have been set to expect a RAID disk configuration when it was, according to you, supposed to be and always was an AHCI configuration. No matter. Your choices are to

A) do an in place change from RAID to AHCI using these steps

1. Right-click the Windows Start Menu. Choose Command Prompt (Admin).
   1. If you don’t see Command Prompt listed, it’s because you have already been updated to a later version of Windows. If so, use this method instead to get to the Command Prompt:
      1. Click the Start Button and type cmd
      2. Right-click the result and select Run as administrator
2. Type this command and press ENTER: bcdedit /set {current} safeboot minimal
   1. If this command does not work for you, try bcdedit /set safeboot minimal
3. Restart the computer and enter BIOS Setup (the key to press varies between systems).
4. Change the SATA Operation mode to AHCI from either IDE or RAID (again, the language varies).
5. Save changes and exit Setup and Windows will automatically boot to Safe Mode.
6. Right-click the Windows Start Menu once more. Choose Command Prompt (Admin).
7. Type this command and press ENTER: bcdedit /deletevalue {current} safeboot
   1. If you had to try the alternate command above, you will likely need to do so here also: bcdedit /deletevalue safeboot
8. Reboot once more and Windows will automatically start with AHCI drivers enabled.

See

SOLUTION: Switch Windows 10 from RAID/IDE to AHCI operation | Triple-S Computers Blog – Louisville, KY computer repair specialist

B) Reinstall windows ensuring that the SATA Mode is set to AHCI before you start. You will also lose all the data so back up the drive. In fact , back it up whatever option you chose.