PCIe card to hold two Samsung SM951's

[1970mgbgt]

Hi,

There is this card:

http://www.amazon.com/Lycom-DT-120-PCIe-Adapter-Support/dp/B00MYCQP38/ref=pd_bxgy_147_text_y

which will hold one. I've searched and found none that can hold two, thereby economizing on slot usage.

Thanks,

Bill

 

[SoyCapitanSoyCapitan]

Doesn't exist. Even the BPlus adapter for two cards needs an extension cable to another PCIE slot.

 

[1970mgbgt]

Doesn't exist. Even the BPlus adapter for two cards needs an extension cable to another PCIE slot.

Well, I can stop looking then. Thanks, my captain.

 

[SoyCapitanSoyCapitan]

Well, I can stop looking then. Thanks, my captain.

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.

 

[cpnotebook80]

Will the new samsung SSDs work with the existing pcie 2 cards?
http://www.theverge.com/2015/9/23/9381215/samsung-950-pro-ssd-read-write-speed-price

 

[flowrider]

^^^^^No NVMe technology has been shown not to work in cMPs. The AHCI based SM951 works quite well however.

See this thread:

https://forums.macrumors.com/threads/nvme-for-mac-pro-5-1.1919972/

Lou

 

[cpnotebook80]

^^^^^No NVMe technology has been shown not to work in cMPs. The AHCI based SM951 works quite well however.

See this thread:

https://forums.macrumors.com/threads/nvme-for-mac-pro-5-1.1919972/

Lou

how about the mac pro 5,1

 

[flowrider]

^^^^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

 

[lowendlinux]

Will the new samsung SSDs work with the existing pcie 2 cards?
http://www.theverge.com/2015/9/23/9381215/samsung-950-pro-ssd-read-write-speed-price

Thanks for the link I was wondering when these were going to come out!

 

[5050]

Doesn't exist. Even the BPlus adapter for two cards needs an extension cable to another PCIE slot.

Already a separate thread for this, but for anyone following this one:

https://forums.macrumors.com/threads/amfeltec-x16-pcie-with-4-ssds-5900-mb-s.1936311/

 

[flowrider]

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



Lou

 

[KevWind]

Doesn't exist. Even the BPlus adapter for two cards needs an extension cable to another PCIE slot.

I'm confused or missing something . What then is company talking about http://amfeltec.com/products/pci-express-carrier-board-for-m-2-ssd-modules/

And this review talking about http://barefeats.com/hard210.html

 

[SoyCapitanSoyCapitan]

I'm confused or missing something . What then is company talking about http://amfeltec.com/products/pci-express-carrier-board-for-m-2-ssd-modules/

And this review talking about http://barefeats.com/hard210.html

That came after my post.

 

[William_si]

I'm confused or missing something . What then is company talking about http://amfeltec.com/products/pci-express-carrier-board-for-m-2-ssd-modules/

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.

 

[KevWind]

That came after my post.

Ah, I didn't even look at the dates, good to know cause I thought I was missing something.

 

[Peter Man]

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

View attachment 624744 View attachment 624745

Lou

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

 

[flowrider]

^^^^In a Word NO! Mine is in slot 4.

Lou

 

[mohaukachi]

^^^^In a Word NO! Mine is in slot 4.

Lou

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?

 

[flowrider]

^^^^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

 

[mohaukachi]

^^^^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

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.