C Drive Connected to Motherboard SATA Connector 3 Instead of 0.


  1. gary palmer
    Posts : 58
    Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
       New #1

    C Drive Connected to Motherboard SATA Connector 3 Instead of 0.


    Hi...my Intel SSD which is my OS-C drive is connected to the motherboard SATA connector designated as SATA connector 3. On initial install of W7 I had a problem where the MBR was installed on my internal N drive (connected to motherboard SATA connector 0 ) instead of on same drive as OS.
    I have sorted out the problem some time ago so the MBR was migrated to the same drive as the C drive. That problem sorted out.

    What I need to know is are they any problems/consequences with my OS-C drive being on motherboard SATA connector designated as SATA connector 3 rather than in the traditional position of using SATA connector 0 on motherboard for C drive ?

    Also if I swap them around so C on 0 & N on 3 on motherboard; will this cause any problems, and will the PC boot up as normal with C being disk0 and N being disk3 within the Computer Mgt Window ?

    Should point out PC is running fine without any obvious problems.

    Thanks in advance.... Gary
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  3. Dwarf
    Posts : 9,582
    Windows 8.1 Pro RTM x64
       New #2

    It makes no difference whatsoever. Upon booting, when the POST has completed, providing that you have a bootable OS present, the system will boot from that disk regardless of which motherboard connector it is attached to (or if it is attached to an expansion card, like mine is). On one of my older systems, I couldn't use ports 0 and 1 because they were obscured by my graphics card. There was no problem in booting with the drive attached to one of the other ports.
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  4. gary palmer
    Posts : 58
    Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
    Thread Starter
       New #3

    C Drive Connected to Motherboard SATA Connector 3 Instead of 0.


    My SATA connector designated connector position number 0 on motherboard is a SATA3 device connector, whereas SATA connector designated connector position number 3 on motherboard is a SATA2 device connector. SATA3 C-OS drive is currently on this connector 3 on motherboard.

    Does anybody think that this would matter as my C-OS drive is latest Intel SSD and very fast (SATA3 device) BUT connected to a SATA2 type motherboard connector ? My understanding is that SATA3 devices have data transfer faster than SATA2 devices.

    Various forums I have been to say you would not see any difference in data transfer
    speeds. Am wondering if I will see any performance difference switching the C-OS drive (SATA3 device) to a matching SATA3 motherboard connector...or will it matter not; so leave it as it is on a SATA2 device connector?

    Any ideas anybody?
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  6. bigmck
    Posts : 4,751
    Windows 7 Home Premium 32-Bit - Build 7600 SP1
       New #4

    It won't make any difference. I just upgraded my system a couple weeks ago. I put my SSD on the Sata 3 port and the my 2 HDD on Sata 2. As it turned out this made my SSD be on connector 3. It does not make any difference. If you want to switch the cables, you can do that with no problem. I would just leave things as they are.
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  7. gary palmer
    Posts : 58
    Microsoft Windows 7 Professional 64-bit 7601 Multiprocessor Free Service Pack 1
    Thread Starter
       New #5

    thanx bigmck and dwarf for your help


    thanx bigmck and dwarf for your help...sounds like you concur with various forums
    that say much the same thing: that being there is no practical speed difference whether my SATA3 SSD is connected to a SATA3 or 2 connector on motherboard.

    Cheers ... GAry
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