PCIe card to hold two Samsung SM951's

Discussion in 'Mac Pro' started by 1970mgbgt, Sep 21, 2015.

  1. 1970mgbgt macrumors member

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    #1
  2. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #2
    Doesn't exist. Even the BPlus adapter for two cards needs an extension cable to another PCIE slot.
     
  3. 1970mgbgt thread starter macrumors member

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    #3
    Well, I can stop looking then. Thanks, my captain.
     
  4. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #4
    Bear this in mind, only one SM951 UBX SSD controller can negotiate a link in a PCIE slot. The only way two can negotiate the link is if they both negotiate with a chip on the adapter card first. But these adapters are only pass through devices.
     
  5. flowrider macrumors 601

    flowrider

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    #6
  6. cpnotebook80 macrumors 6502a

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    #7
  7. flowrider macrumors 601

    flowrider

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    #8
    ^^^^A 5,1 is the last of the cMPs (Classic Mac Pro). And, just a question - But, did you even read the link I posted?

    Lou
     
  8. lowendlinux Contributor

    lowendlinux

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    #9
  9. 5050 macrumors regular

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  10. flowrider, Apr 2, 2016
    Last edited: Apr 2, 2016

    flowrider macrumors 601

    flowrider

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    #11
    ^^^^And here's my 5,1 with X5677s, SM951 AHCI mounted on an Angelbird Wings board.

    AJA SM951 Wings.jpg Black magic SM951 Wings.jpg

    Lou
     
  11. KevWind macrumors member

    KevWind

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    #12
  12. SoyCapitanSoyCapitan macrumors 68040

    SoyCapitanSoyCapitan

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    #13
  13. William_si macrumors regular

    William_si

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    #14
    Essentially this just links it to x8 lanes, 4 per M.2 slot - you can achieve the same by splitting up the lanes in 2 slots (i have some interesting data on such for my 4,1 but the project is not done yet).

    There should be PLX switched cards with only x4 for both and minimal logic that possibly even enables an unencrypted RAID1 to achieve full link speed of one SSD but at a price.
     
  14. KevWind macrumors member

    KevWind

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    #15
    Ah, I didn't even look at the dates, good to know cause I thought I was missing something.
     
  15. Peter Man macrumors newbie

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    Apr 4, 2016
    #16
    Hi I wanted to ask Does having this in Slot number 4 lower the speed?
    Im looking to buy this but only have slot 4 available.

    Cheers,
    Pete
     
  16. flowrider macrumors 601

    flowrider

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  17. mohaukachi macrumors member

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    los angeles
    #18
    So you grab the Amfeltec card and 4 512 SM951s and you can have a bootable 2tb ssd raid with over 5000 mb/s read write speeds? This works?
     
  18. flowrider macrumors 601

    flowrider

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    Nov 23, 2012
    #19
    ^^^^Not with an Amfeltec in slot 4 it won't. You need to use slot 2. Unlike the Lycom or Angelbird that only hold one SM951 and is a 4 lane card. The Amfeltec holds up to four SM951s and is a 16 lane card. Both the Lycom and Angelbird have a problem in slot 2, the Amfeltec does not!

    http://barefeats.com/hard210.html

    Lou
     
  19. mohaukachi macrumors member

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    los angeles
    #20
    Oh brilliant, I get it! I just emailed for the price and the card clocks in at $367.38 so all together it would be about $1500. That's a lot to spend, but it's some insane I/O per dollar.
     

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