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I have 3 hard drives in my computer and I can not figure out how to distinguish which physical hard drive in my computer represents the drive letter. When I am in the bios I can see the hard drive names; Samsung, hitach, blah but when I am in windows I do not know which hard drive that windows is running on. I would like to figure out how to find this out because I am reformatting all of them and then running speed tests to see which one is the fastest. Then I will instal widows on the fastes and Linux on the second fastest. This brings me to my second question how do I set it so when I boot up the bios asks if I want to boot into Linux or windows? Other notes I can not trace the sata port number to the physical hard drive because the cables are a mess.

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Probably shouldn't be reformatting and reinstalling OSes if you can't figure out which drive is which. –  Brad Patton Mar 9 '13 at 3:23
    
The Disk Management consoles might help, or right-click on your C: drive and go to Hardware... –  cp2141 Mar 9 '13 at 3:49
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up vote 5 down vote accepted

If your drives are in any kind of RAID configuration, I don't believe that this is possible as Windows won't see the individual disks (and they'll use a generic driver).

However, if they aren't, you should open the MIcrosoft Management Console (start > run > mmc) and load in the Disk Management snap-in. This will show you show you which drive letters are assigned to which disks and you can check the disk properties (right click > properties) to see the vendor.

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Unfortunately I have tries going into device manager and looking at the hard drive properties but it could not indicate the drive letter that it was assigned or what was physically written on the disk. –  Bryce Mar 9 '13 at 3:21
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I didn't suggest the Device Manager, I suggested Disk Management. They're two different tools. Disk Management will match a Disk # to partitions and drive letters. –  slancio Mar 9 '13 at 3:31
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Are all of your drives the same size? That might help you narrow down which one you're using. Otherwise you might be better off unplugging the SATA cable off one drive at a time (at the drive) until Windows doesn't boot. Then you know which one it is. –  slancio Mar 9 '13 at 3:45
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Alright well I suppose I will resort to that. I wish this was simpler. Thank you for your help. –  Bryce Mar 9 '13 at 3:53
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@Bryce: I don't understand what your problem with Disk Management is. It clearly shows you which partitions exist on each physical disk, and when you right-click the disk i.e. Disk 0, Disk 1 etc. (not a particular partition or drive letter), it shows you which model it is. The reverse way is also easy - just open Device Manager, right-click a disk, select Properties, go to the Volumes tab and click the Populate button. –  Karan Mar 10 '13 at 3:15
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