@famil83 : Welcome to the Win-RAID Forum!
Since Win7 is an outdated OS, I have moved your request into the "Windows 7" Sub-Forum.

To be able to help you, we need to know the manufacturer and - if possible - the HardwareIDs of the on-board SATA Controller.
As first step you hould tell us, whether the SATA ports of your Dell PC are running in AHCI or RAID mode. You can check it by entering the BIOS and looking into the "Storage Controllers" section.
If you are currently running any Windows OS on your Dell system, please run the Device Manager, expand the sections "IDE ATA/ATAPI Controllers" and - if applicable - "Storage Controllers" and look for the Controller names you will find within them.

By the way - Dell has never built own AHCI or RAID drivers. Win7 has a generic n MS in-box AHCI driver, which supports all AHCI Controllers.
You will only need a pre-install driver, if
a) the on-board SATA Controller is running in RAID mode and
b) the on-board RAID Controller is not supported by the Win7 in-box drivers.

Regards
Dieter (alias Fernando)

Zitat von famil83 im Beitrag #3

---

But the device is BC511 NVMe SK hynix 256gb

---

@famil83 : Since it seems now, that you are searching for an NVMe driver (and not for an AHCI or RAID driver, I have moved the thread into the "Storage Drivers" Sub-Forum.
This will make it easier for you and for everyone else with a similar request.