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Windows 7: Why does Device Manager say my SATA HDD is SCSI

13 Oct 2014   #1

Windows 7 Professional SP1 64-bit
Why does Device Manager say my SATA HDD is SCSI

The particular HDD is a Samsung HD103SI. This is a SATA drive. It is connected with a SATA cable. My PC doesn't have any SCSI ports.

But Device Manager - Disk Drives lists it as SAMSUNG HD103SI SCSI Disk Device.

It works just fine. Except for one thing, which I don't need at the moment. I cannot make it an un-pluggable AHCI drive because somewhere along the line Windows believes that it is SCSI.

Edit: I have 2 of these drives. If I plug the spare one in (a different SATA port) Windows lists it as SATA.

My System SpecsSystem Spec
13 Oct 2014   #2

Windows 7 Ultimate x64 SP1, Windows 8.1 Pro x64, Windows 10 Pro x64

Some drivers for some hard drive controllers will list SATA drives as SCSI.

All works normally except that the system shows them as SCSI and it may indicate that they are removable.

All my Marvell controllers (with Marvell drivers) list them as SCSI but I can turn off the removable function in the drive properties.
My System SpecsSystem Spec
13 Oct 2014   #3

Windows 7 Professional SP1 64-bit

Your answer made me check a few things. And think.

I have 5 HDDs, a DVD writer and a set of SATA cables that hang out the box for quick plugging and unplugging the backup drives. (I have a backup drive for each of the 5 drives.) This is 7 devices.

But only 6 SATA ports. So I have a plugin VIA SATA/IDE controller to get an extra SATA port. And the "problem" drive was connected to that. Hence the problem.

So I have swapped the DVD writer and "problem" drive around and have the DVD writer on the plugin controller.

Problem solved.

It also means that my only SATA 3 HDD is now connected to a SATA 3 port. (I didn't know it was SATA 3 until I started exploring this "problem."
My System SpecsSystem Spec


 Why does Device Manager say my SATA HDD is SCSI

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