Suggest you try the microsoft.public.windows.vista.hardware_devices
newsgroup

"RonnieJP" <ronniejp@pacbell.net> wrote in message
news:1181934114.677059.260000@n2g2000hse.googlegro ups.com...
>I am running Vista Ultimate 32-bit on a SCSI boot drive, which shows
> correctly as Physical Disk 0 in Vista's Logical Disk Manager snap-in.
> It is partitioned as Drive C. I have an additional SCSI drive for
> data partitioned as Drive D that shows correctly as Physical Disk 1.
> The SCSI drives are connected to an Adaptec 19160 host adapter in the
> PCI slot.
> I recently added an external e-SATA hard drive to one of the internal
> motherboard SATA ports configured as ACHI to allow for hot-plug
> capability. Since apparently the motherboard SATA ports have priority
> over those of an add-in HDD controller, Vista now sees my external e-
> SATA drive as Physical Disk 0 and my SCSI boot drive became Physical
> Disk 1 and so on. The drive letters of the SCSI drives (C and D) did
> not change and I assigned the
> e-SATA as Drive letter H. Vista seems to have adjusted to this
> situation and I have no problem booting and using all the drives. In
> fact, if I unplug (or power off) the e-SATA drive, Logical Disk
> Manager just shows no more Physical Disk 0. If I re-connect the e-
> SATA drive, it shows up as Physical Disk 0 again.
> I cannot beleive that Vista is smart enough to adapt to this. I
> always thought that the boot drive must be on Physical Disk 0, at lest
> back in the XP days. My question is am I asking for trouble by doing
> this and can I expect to see any problems in the future by not having
> the boot drive as Physical Disk 0?
> If I install an add-in e-SATA controller card, then the external SATA
> drive would become Physical Disk 2, but I'd prefer to use the SATA on
> the motherboard. Does anyone foresee any problem with the boot drive
> partition NOT being on Physical Disk 0? I'd appeciate knowledgeable
> comments. Thanks.
>