Dell XPS 8940 SATA and NVMe disk controller not recognized

Barney Wolff barney at
Sat Apr 3 19:37:58 UTC 2021

On Sat, Apr 03, 2021 at 02:25:30PM -0500, Karl Dunn wrote:
> I have new Dell XPS 8940 that came with Windows 10 Home installed.  I have 
> created two partitions for FreeBSD, one on its NMVe 256GB SSD, and one on 
> its WD 1TB HD.
> For now, I have 12.2-RELEASE-p4 GENERIC on a USB memstick, so I can do 
> some limited testing.
> FreeBSD 12.2 does not recognize the SATA/RAID controller, which I assume 
> is resposible (in Win10) for accising both drives.
> The relevant pcoconf line for the controlleris:
>   none7 at pci0:0:23:0: class=0x010400 card=0x09c51028 chip=0x06d68086 rev=0x00 hdr=0x00
>      vendor     = 'Intel Corporation'
>      class      = mass storage
>      subclass   = RAID

See if the BIOS offers a choice of configuring the controller as SATA instead of RAID. That worked for me on an Inspiron 1180. (It also made W10 unbootable - apparently each OS occupies its own universe.)

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