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#51
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
Ya can't just go answering questions on DUC because people ask them
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#52
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
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As I understand it on my Mid 2010 machine it has 2 PCIe 16 lane slots (the bottom 2) and two 4 lane slots (top two) I was planning on putting the Crest double adaptor in the top slot (4 lane) ? But do have to put it into a 16 lane slot or can it placed in a 4 lane slot (and does that reduce performance) ? The reason I ask is because I have the Graphics card in the bottom slot 16 lane (as per factory) and the PTHDN card in the 2 nd from the bottom (16 lane) as per the placement done at the Pro shop where I bought the Mac and PTHDN card from. So my next question is. If the Crest absolutely needs to go a 16 lane slot, can the PTHDN card go in a 4 lane ??? Because I read this from Apple support forum The allocation of slot-speeds on the 2009 through 2012 Mac Pro is fixed, not configurable, and is exactly as you state: the two lowest slots are 16x slots, the two upper slots are 4x speed, but "provide support for up to 16x cards" (in other words, they use the largest connectors, but everything beyond 4x is not connected). How does this jive with the Crest ?
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System : Studio - Avid Carbon interface , PT Ultimate 2023.12 Mid 2020 (intel) iMac 27" Ventura 13.2 .1 Mobile - 2021 14 " MBP M1 Pro PT Ultimate 2024.3.0 --Sonoma 14.4 Enjoy the Journey.... Kev... |
#53
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
Absolutely can!
Think of it as "HDX card without DSP" and then continue thinking that you can have a HDX3 on the same box. Now if 4x would not be enough for HDX then it would also be limited to one card system -- AND, if the 4x slot is good enough for HDX it is surely good enough for HDN.
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Janne What we do in life, echoes in eternity. |
#54
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
Look it is simple. With that switched adapter card you need twice the PCIe 2 lanes as in your Mac Pro as PCIe 3 lanes on the M.2 cards. One M.2 card you need 8x PCIe 2 lanes, two M.2 cards you need 16x PCIe 2 lanes. Talking electrical lanes of course, not just slot widths.
IIRC HDN is 1 lane x PCIe 1 electrical in a PCIe 4 physical card. You could not find a more wimpy card spec if you tried... |
#55
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
My wrist hurts now. Did you have to slap it so hard?
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#56
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
Ok... another question. What if I use a non switching pcie card with 1 m.2 drive in a x4 slot. Is it still much better than a pcie card with a regular ssd on it?
Sent from my SM-G975U using Tapatalk |
#57
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
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M.2 NVMe on 4 x PCIe 2 ? Yes still much faster than a SATA III drive. |
#58
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
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From a single m2 drive in an older non switching card, like what I have now, it maxed out at 1500 even if the drive itself is over twice as fast like the 970 Pro I have.
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#59
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
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Also what model older non switching pcie card for nvme m.2 blades are you using? If you don't mind. Sent from my SM-G975U using Tapatalk Last edited by arche3; 07-23-2019 at 11:19 AM. |
#60
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Re: NVMe upgrade for Mac Pro 4.1/5.1 Mojave
Ghostwriter, right or wrong, I appreciate your shot at answering my previous question (either way Darryl will slap us around if we get it wrong! . Online communities work best when everyone participates. I'm probably going to do the same thing you are, same card, same dual drives (although I may spring for the big bucks and put two 2TB NVMe drives on the card. As I understand it they will read as two separate drives). The only difference is you have a 2012 Mac Pro and I have Mid-2010. Reading through previous posts I don't think that will make a difference (I hope). Keep us posted as to how it goes.
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