1.    09 Sep 2016 #1

    Sata III PCI cards for computer with SATA II ports on mobo


    I have a DIY box with an Asus P5K-E mobo that provides SATA II ports. I upgraded to a pair of Samsung 850 EVO ssds and naturally got a great speed boost. Now I am getting greedy and thinking about doubling my gains with a SATA III controller card. I have been reading online and I am seeing indications that I may not get much if any speed boost that way. Would those of you experienced with doing what I am contemplating please chime in and tell me if you achieved improvement and if so what card did you use? I am running Windows 10 Pro and Windows 10 Home, one on each ssd, no RAID is involved.
      My System SpecsSystem Spec


  2. Joined : Feb 2016
    Phoenix, AZ
    Posts : 109
    Windows 10 Pro 1607 14393.576
       10 Sep 2016 #2

    I have not tried any bus card, but looking at the age of your mother board and not knowing your CPU or Memory speed, you probably will not get the full sata III speeds that your looking for. Best to get on-board Sata III support.
      My System SpecsSystem Spec

  3.    10 Sep 2016 #3

    Or just not worry about it. It is my test box and not my primary computer. The ssds are pretty fast even throttled back by the SATA II connections. Like all us enthusiasts, I'm always looking to tweak.
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  4. Joined : Jul 2014
    Serbia
    Posts : 6,942
    All kinds
       10 Sep 2016 #4

    If you use a PCIe card you may get speeds somewhere in between but there is still a question of compatibility and card has to be bootable of course, not all of them are.
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  5.    10 Sep 2016 #5

    Do you have a card in mind? I have three open universal PCI slots. I'm OK on the theory.
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  6. Joined : Jul 2014
    Serbia
    Posts : 6,942
    All kinds
       11 Sep 2016 #6

    Can't remember now what I had and tried (it was 4 or 5 years ago) but I was unimpressed, couldn't see any real life improvement. It may have some uses if used to add more SATA ports, some have ability to daisy chain drives on same port.
      My System SpecsSystem Spec

  7.    11 Sep 2016 #7

    Yeah, they are called port multipliers. It also matters how many lanes the card supports. On an x4 card with four ports using all four is a mistake because daisy chained or not all the attached drives will use the same lane. Or something like that.
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  8. Joined : Jul 2014
    Serbia
    Posts : 6,942
    All kinds
       11 Sep 2016 #8

    Cbarnhorst said: View Post
    Yeah, they are called port multipliers. It also matters how many lanes the card supports. On an x4 card with four ports using all four is a mistake because daisy chained or not all the attached drives will use the same lane. Or something like that.
    I have seen some with PCIe x4, they may be better.
      My System SpecsSystem Spec


  9. Joined : Nov 2015
    Posts : 30
    Windows 10 X64
       11 Sep 2016 #9

    Cbarnhorst
    sata 3 pcie cards need pciexpress version 2 .
    Your motherboard has only one pci e 2 and it is for grafiks card.
    The other two are pci express version 1 provided by southbridhe ich9r and limited only to 250mb/sec.
    Your sata 2 ports are 300 mb/secons so you are quicker.

    The minimum requirement to run properly a sata 3 pcie card is the chipset x58 whitch provides multiple pcie 2 slots and its line provide 500mb/s (sata 3 provides 600mb/s so the cost is a little).

    EdIt:
    Now i found the manual of your motherboard and also your pci e for youur grafiks card it is also 1 version.
      My System SpecsSystem Spec

  10.    11 Sep 2016 #10

    That's the answer I was looking for. Thanks!
      My System SpecsSystem Spec


 


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