Replace "left" GPU with a second "Right" GPU for two SSDs is nMP?

JesterJJZ

macrumors 68020
Original poster
Jul 21, 2004
2,424
768
Someone should try this.

Get two MacPros, remove the GPU without the SSD on it and replace it with the other GPU from the other MacPro with the SSD on it.

I wonder if it would even register being there?
 

JesterJJZ

macrumors 68020
Original poster
Jul 21, 2004
2,424
768
It's kinda silly that a second SSD isn't an option to begin with.

What would be great would be if there was that second SSD slot and someone made an adapter to put a 2.5" drive in there.
 

Spinland

macrumors 6502
Jul 16, 2011
320
1
Utica, NY, USA
I am so far removed from being a hardware expert that it's a wonder I'm allowed to choose my own fork, but I was under the impression there was an issue about the data channels involved, and that the non-SSD board would probably not have the requisite data feeds linked to it.
 

goMac

macrumors 604
Apr 15, 2004
7,146
1,167
I'm wondering if there are only enough PCI-E lanes for one. 40 lanes total, each SSD is 4 lanes, must be tight...
 

Umbongo

macrumors 601
Sep 14, 2006
4,934
54
England
do you think it's possible we'll see more lanes added with haswell E? (or whatever the next gen equivalent processors are called)
No. Haswell-EP has 40 lanes. I think you'll just see it as a second generation addition in typical Apple fashion.
 

Larry-K

macrumors 68000
Jun 28, 2011
1,852
2,316
It's kinda silly that a second SSD isn't an option to begin with.

What would be great would be if there was that second SSD slot and someone made an adapter to put a 2.5" drive in there.
Come on! You mean you're not enthusiastic about attaching your scratch disk via a Thunderbolt cable? I know you have an extra $50 you're just dying to give to Apple.

Me, I like 1 GPU, 2 CPUs and at least 2 CDrives, but I'm old fashioned that way.
 

Analog Kid

macrumors 603
Mar 4, 2003
5,119
3,253
Someone should try this.

Get two MacPros, remove the GPU without the SSD on it and replace it with the other GPU from the other MacPro with the SSD on it.

I wonder if it would even register being there?
Tell you what: you provide the hardware and I'll provide the labor. ;)
 

Cubemmal

macrumors 6502a
Jun 13, 2013
824
1
What's the point? There's plenty of TB 2.0 bandwidth for mere disks. I've got a promise Pegasus 2 on order, and will get a OWC Helios 2 with SSD when it's ready.
 

JesterJJZ

macrumors 68020
Original poster
Jul 21, 2004
2,424
768
What's the point? There's plenty of TB 2.0 bandwidth for mere disks. I've got a promise Pegasus 2 on order, and will get a OWC Helios 2 with SSD when it's ready.
The point is some people prefer stuff inside the machine rather than cables and powerbricks everywhere.
 

Cubemmal

macrumors 6502a
Jun 13, 2013
824
1
The point is some people prefer stuff inside the machine rather than cables and powerbricks everywhere.
Then why are those people even considering a new Mac Pro? For me, I've got a 33' Corning TB cable going from my desk to an equipment cabinet where all the drives are. Along with two ethernet cables - that's three total - I've got all the I/O bandwidth I need and don't have to look at a single power brick and cable mess.

Conventional boxes are big, noisy affairs, and my Old Mac Pro is hardly the clean layout system. I could never get it organized, it had eSATA coming off, a USB 3.0 card, this that and the other thing. Now for I/O I condensed that down to ONE cable.
 

Cubemmal

macrumors 6502a
Jun 13, 2013
824
1
We're not.

What's to stop is from taking about how to improve the design to make it more attractive to us?
Nothing, nor is there anything preventing me from pointing out the (IMO) uselessness of the wish. Like it or hate it, Apple has been working on eliminating internal expansion for at least six years, and with the release of nMP they've completed it across the line. Seems to me to be counter productive to wish it were different, instead of focusing on what new possibilities open up with external expansion, such as remote (noisy) disks as I mentioned.
 

Lumpydog

macrumors 6502
Aug 3, 2007
327
20
It's not uncommon for Apple to purposefully withhold obvious features (like two PCIe slots) so the next product release has a longer new feature list...

Example - finger print reader being absent in the latest iPads... Easy addition, left for next release feature list. The next nMP will have 2 PCIe slots for two SSD cards.
 

paulrbeers

macrumors 68040
Dec 17, 2009
3,961
120
It's not uncommon for Apple to purposefully withhold obvious features (like two PCIe slots) so the next product release has a longer new feature list...

Example - finger print reader being absent in the latest iPads... Easy addition, left for next release feature list. The next nMP will have 2 PCIe slots for two SSD cards.
Your logic failure here is comparing a basic consumer device (iPad) to a workstation....

While that is true Apple does tend to with hold features to get you to upgrade, do you really see a second internal SSD really a "selling point" to have people upgrade next year? I do not. Also, we are not talking about Phones or Tablets here that are < $1000 and people consider upgrading from year to year. These are $3k+ devices. One small upgrade such as that is not going to get people to dump their current machine and upgrade.

If Apple does add a second SSD next year, it is not because they "with held it to get it people to upgrade", it is only because they figured out a good way to do it even with the "limited" amount of PCIE lanes available.
 

JesterJJZ

macrumors 68020
Original poster
Jul 21, 2004
2,424
768
Nothing, nor is there anything preventing me from pointing out the (IMO) uselessness of the wish. Like it or hate it, Apple has been working on eliminating internal expansion for at least six years, and with the release of nMP they've completed it across the line. Seems to me to be counter productive to wish it were different, instead of focusing on what new possibilities open up with external expansion, such as remote (noisy) disks as I mentioned.
Wishing is never useless. Has Disney taught you nothing? ;)
 

Lumpydog

macrumors 6502
Aug 3, 2007
327
20
Your logic failure here is comparing a basic consumer device (iPad) to a workstation....

While that is true Apple does tend to with hold features to get you to upgrade, do you really see a second internal SSD really a "selling point" to have people upgrade next year? I do not. Also, we are not talking about Phones or Tablets here that are < $1000 and people consider upgrading from year to year. These are $3k+ devices. One small upgrade such as that is not going to get people to dump their current machine and upgrade.

If Apple does add a second SSD next year, it is not because they "with held it to get it people to upgrade", it is only because they figured out a good way to do it even with the "limited" amount of PCIE lanes available.
I'm not comparing devices at all. Rather, pointing out a common Apple marketing tactic. Wait and see I guess.

If Apple wanted to add two PCIe/SSD cards, they could have. Every product has a roadmap. While no single feature on the list of generation-to-generation upgrades is generally compelling in and of itself, it is usually the sum of the new features that drives people to buy. Apple is measured/disciplined in their approach to providing 3-4 new/improved features with each generation and are known to withhold features that easily could have been included in the prior gen.

I didn't say people were going to dump their current machines for an extra SSD slot/capability btw. Nor did I claim Apple withheld the feature to get people to upgrade. Your words, not mine.
 

prowlmedia

Suspended
Jan 26, 2010
1,589
813
London
It's not uncommon for Apple to purposefully withhold obvious features (like two PCIe slots) so the next product release has a longer new feature list...

Example - finger print reader being absent in the latest iPads... Easy addition, left for next release feature list. The next nMP will have 2 PCIe slots for two SSD cards.
Er... Or just 2tb cards
 

calaverasgrande

macrumors 65816
Oct 18, 2010
1,291
161
Brooklyn, New York.
It's kinda silly that a second SSD isn't an option to begin with.

What would be great would be if there was that second SSD slot and someone made an adapter to put a 2.5" drive in there.
It would be kind of silly to waste a 2.5" drive on such a fast interface.
The point of using PCIe instead of SATA is that it is faster than SATA's max throughput. It also disintermediates the need for a SATA to PCIe host controller, which decreases latency by a smidge and increases speed.

I would love to see a 2nd SSD. No matter how fast the first SSD is I just like to have all my Apps and OS on one volume, and my various data sets, project and whatnot on another. Old habits die hard.
 

JesterJJZ

macrumors 68020
Original poster
Jul 21, 2004
2,424
768
It would be kind of silly to waste a 2.5" drive on such a fast interface.
The point of using PCIe instead of SATA is that it is faster than SATA's max throughput. It also disintermediates the need for a SATA to PCIe host controller, which decreases latency by a smidge and increases speed.

I would love to see a 2nd SSD. No matter how fast the first SSD is I just like to have all my Apps and OS on one volume, and my various data sets, project and whatnot on another. Old habits die hard.
It's not always about speed. You could probably cram a 2TB 2.5" drive in there. 2TB SSD would be really expensive for simple storage.
 
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