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x79 Chipset and PCIe M.2 SSD Adapters

post #1 of 8
Thread Starter 
TL;DR - Do the PCIe M.2 SSD Adapaters available on the market at the moment perform even remotely close to their rated specs (750+MB/s reads) on older chip sets like the x79.


Hello,

I've been searching around google looking for answers to this question, and only found one post in a german forum relating to it (or im just not asking google the right question).

I was wondering what the performance of a PCIe M.2 SATA Adapter (such as the Plextor M6e or HP Z Turbo) would be on the x79 chipset (specifically with the Rampage IV Black Edition board).
I've heard that on chipsets older than x87, rated queue depths of 100K + IOPS will not be achieved, but i guess this is not such a worry for most scenarios. (50K IOPS avg. max. for typical usage?)

I've seen all the benchmarks showing some decent speeds using the samsung xp941 m.2 drive and HPs equivalent drive - 750MB/s +

I've also noticed in some of the benchmark tests/reviews, the drives provided to the reviewer were running on custom systems, using custom firmware and custom m.2 drives, that would not be seen by consumers at any point in time, so the results of these benchmarks seemed highly theoretical and possibly not even close to what would be achievable in the real world. (even when benchmarking at home.)

Does anyone have one of these PCI express M.2 SATA Adapaters running in their system that could comment, preferably on a chipset older than x87?
post #2 of 8
Quote:
Originally Posted by anti-clockwize View Post

TL;DR - Do the PCIe M.2 SSD Adapaters available on the market at the moment perform even remotely close to their rated specs (750+MB/s reads) on older chip sets like the x79.


Hello,

I've been searching around google looking for answers to this question, and only found one post in a german forum relating to it (or im just not asking google the right question).

I was wondering what the performance of a PCIe M.2 SATA Adapter (such as the Plextor M6e or HP Z Turbo) would be on the x79 chipset (specifically with the Rampage IV Black Edition board).
I've heard that on chipsets older than x87, rated queue depths of 100K + IOPS will not be achieved, but i guess this is not such a worry for most scenarios. (50K IOPS avg. max. for typical usage?)

I've seen all the benchmarks showing some decent speeds using the samsung xp941 m.2 drive and HPs equivalent drive - 750MB/s +

I've also noticed in some of the benchmark tests/reviews, the drives provided to the reviewer were running on custom systems, using custom firmware and custom m.2 drives, that would not be seen by consumers at any point in time, so the results of these benchmarks seemed highly theoretical and possibly not even close to what would be achievable in the real world. (even when benchmarking at home.)

Does anyone have one of these PCI express M.2 SATA Adapaters running in their system that could comment, preferably on a chipset older than x87?


I don't even think that board has an m.2 slot.
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by Shiftstealth View Post

I don't even think that board has an m.2 slot.

no, it doesnt. please re-read my question and possibly look up the products im talking about so you have an idea about the technology im asking about.
cheers.
post #4 of 8
Thread Starter 
Quote:
Originally Posted by Shiftstealth View Post

I don't even think that board has an m.2 slot.

here: http://www.legitreviews.com/plextor-m6e-256gb-m-2-pcie-ssd-review_144812

plugs into x4 PCIe 2.0 slot. giving you an M.2 slot when your mainboard does not support natively.

It will not perform as good as native M.2, im quite sure of that. My question is how close can it get; specifically on the x79 chipset which will limit the IOPS to the ssd compared to native m2 on x99 for example.

I've seen a review where they used it on a z68 chipset, where the tester was not fully happy with the performance on that system. He noted that if you use a chipset that supports M.2 natively, you will see much better performance, obviously.

here is a review where they test it on an x79 chipset, http://www.pugetsystems.com/labs/articles/Samsung-XP941-Plextor-PX-G256-M6e-M-2-Qualification-575/

however in that review, they only demonstrate that the Samsung XP941 M.2 SSD is not bootable on x79 chipset using the Plextor PCIe to M2 Sata adapter. But the plextor ssd in the plextor adapter will uefi and legacy boot.
they do not comment on performance....... maybe thats not a good sign.



There is also a thread IN THIS FORUM about this: where they say:
Quote:
This situation does not occur with Ivy Bridge and Haswell processors. I doubt that X79 systems would be an exception, given their much greater amount of PCIe 2.0 lanes. While we have had PCIe 3.0 support for two years, that does not mean that all older boards have PCIe 2.0 support. The Intel X58 chipset from late 2008 only supports PCIe 1.1. Carefully check your motherboard for the type of PCIe support and the number of PCIe lanes available at the very least before purchasing an SSD of this type.
basically saying that x79 has enough pcie2.0 lanes that there *should* be enough free to get the performance, but it doesn't confirm anywhere, hence why i ask the question i am asking.

from: http://www.overclock.net/t/1489684/ssd-interface-comparison-pci-express-vs-sata
Edited by anti-clockwize - 1/12/15 at 7:33am
post #5 of 8
Quote:
Originally Posted by anti-clockwize View Post

here: http://www.legitreviews.com/plextor-m6e-256gb-m-2-pcie-ssd-review_144812

plugs into x4 PCIe 2.0 slot. giving you an M.2 slot when your mainboard does not support natively.

It will not perform as good as native M.2, im quite sure of that. My question is how close can it get; specifically on the x79 chipset which will limit the IOPS to the ssd compared to native m2 on x99 for example.

I've seen a review where they used it on a z68 chipset, where the tester was not fully happy with the performance on that system. He noted that if you use a chipset that supports M.2 natively, you will see much better performance, obviously.

here is a review where they test it on an x79 chipset, http://www.pugetsystems.com/labs/articles/Samsung-XP941-Plextor-PX-G256-M6e-M-2-Qualification-575/

however in that review, they only demonstrate that the Samsung XP941 M.2 SSD is not bootable on x79 chipset using the Plextor PCIe to M2 Sata adapter. But the plextor ssd in the plextor adapter will uefi and legacy boot.
they do not comment on performance....... maybe thats not a good sign.



There is also a thread IN THIS FORUM about this: where they say:
basically saying that x79 has enough pcie2.0 lanes that there *should* be enough free to get the performance, but it doesn't confirm anywhere, hence why i ask the question i am asking.

from: http://www.overclock.net/t/1489684/ssd-interface-comparison-pci-express-vs-sata

I don't see why it would limit IOPS. I believe those are the amount of functions the SSD can perform. Not the quantity of data that it is moving. I would think that is why it is omitted. Yes having PCIE 3.0 lanes provide more available speed, but again that is the amount of data you can move. Not the amount of operations you can perform. 4X PCIE 2.0 Lanes is still what like 16Gbps which is 2 Gigabytes per second. So i think you should be fine on that front. If anything these drives perform better on X99 because of intels drivers.
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post #6 of 8
Thread Starter 
Quote:
Originally Posted by Shiftstealth View Post

I don't see why it would limit IOPS. I believe those are the amount of functions the SSD can perform. Not the quantity of data that it is moving. I would think that is why it is omitted. Yes having PCIE 3.0 lanes provide more available speed, but again that is the amount of data you can move. Not the amount of operations you can perform. 4X PCIE 2.0 Lanes is still what like 16Gbps which is 2 Gigabytes per second. So i think you should be fine on that front. If anything these drives perform better on X99 because of intels drivers.

Thanks for the response.
Edited by anti-clockwize - 1/14/15 at 7:29am
post #7 of 8
Hi, Sorry to drag up an old thread.

I'm trying to boot an M.2 (https://www.amazon.co.uk/gp/product/B01LYOKOJI/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) off an PCIe adapter (https://www.amazon.co.uk/gp/product/B01NAV0XHX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) in my ASUS Rampage IV Black Edition, did you get to a conclusion?

Thanks in advance
post #8 of 8
Quote:
Originally Posted by V-Max2xs View Post

Hi, Sorry to drag up an old thread.

I'm trying to boot an M.2 (https://www.amazon.co.uk/gp/product/B01LYOKOJI/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) off an PCIe adapter (https://www.amazon.co.uk/gp/product/B01NAV0XHX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1) in my ASUS Rampage IV Black Edition, did you get to a conclusion?

Thanks in advance
https://rog.asus.com/forum/showthread.php?48001-R4E-BIOS-4804-MODDED-EFI-Intel-13-1-0-2126-Download
try this one in asus hopefully will help you.
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