Hereis what mine looks like.Īs you can see, my Intel SSD is listed as "ATA Intel SSDSC2CW12 SCSI Disk device" while my 2x HDD in RAID 1 is listed as "Intel Raid 1 Volume SCSI Disk Device". You can see where your HDD/SSD is actually connected using the device manager and setting the "view" to "device by connection". When in RAID mode, this means that your HDD will be shown as connected to the Storage Controller (in my case Intel Desktop/Workstation/Server Chipset SATA RAID Controller) within the device manager and will use the "iaStorA.sys" driver which (like "msahci.sys") will support SSD and their TRIM functionality while also supporting RAID 0 connection. Now when in ATA mode, this means that your HDD will be shown as connected to the IDE ATA/ATAPI Controller within the device manager and the device will use the "atapi.sys" driver which is not ideal for SSD's as TRIM is not passed with this driver. What this means is that the chipset will be presented to the OS either as devices under "IDE ATA/ATAPI controllers" or as device under "Storage controllers" within the device manager itself. Willdloy, while i'm not familiar with your XPS 8100 it's likely you have an Intel chipset supporting RAID and your BIOS settings allow for either ATA or RAID configuration.
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