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Ryzen and m.2

So I'm trying to understand the different X370 motherboards and looking the descriptions on newegg.
I'm building a new PC and will be building an AMD Ryzen system.
I plan to get an NVMe Samsung 960 Pro and use it for my boot drive.
I also would like to get a second m.2 drive.
So I'm trying to understand the the difference between these 2 m.2 slots on each board listed;
ASUS Prime X370-Pro
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support
AMD 7th Generation A-series / Athlon Processors
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110(PCIE 3.0 x2 and SATA modes) storage devices support

ASUS ROG Crosshair VI Hero
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support
AMD 7th Generation A-series / Athlon Processors
- 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 (SATA mode) storage devices support

MSI X370 GAMING PRO CARBON
&
MSI X370 XPOWER GAMING TITANIUM
Just says 2 x M.2

And the 3 from ASRock
Fatal1ty X370 Gaming K4
X370 Taichi
Fatal1ty X370 Gaming
1 x Ultra M.2 Socket (M2_1), supports type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s) (with Ryzen Series CPU) or Gen3 x2 (16Gb/s) (with A-Series APU)*
1 x M.2 Socket (M2_2), supports type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen2 x2 (10Gb/s)*
* Supports NVMe SSD as boot disks
* Supports ASRock U.2 Kit

Am I correct in understanding that the second m.2 on the ASUS ans ASRock that the Samsung 960 Pro won't benefit from this second m.2 speed wise?
If so, which NVMe would be a good secondary drive for these slots?
Reply to Joe0504
33 answers Last reply Best Answer
More about ryzen
  1. Yes, and there's no point getting the 960 Pro apart from warranty, get the Evo, its more than enough.
    Reply to Chugalug_
  2. Best answer
    only the X370 Taichi have 2 m.2 . the other is only 1 they just saying it run x4 only withe ryzen and not the apu.
    the pcie 3.0 x4 lane is from the ryzen cpu.

    spec for the msi x370
    https://msi.com/Motherboard/X370-XPOWER-GAMING-TITANIUM.html#productSpecification-section


    bascially
    Ryzen CPU can have pcie 3.0 x4 32Gb/s
    7th gen APU can have pcie 3.0 x2 16Gb/s
    amd chipset pcie 2.0 x2 10Gb/s
    Reply to rgd1101
  3. So it's been a long time since I've built a PC and I'm not up on the latest terms.
    What do you mean
    "the other is only 1 they just saying it run x4 only withe ryzen and not the apu."
    What is a 7th gen APU? what is APU?
    Reply to Joe0504
  4. Joe0504 said:
    So it's been a long time since I've built a PC and I'm not up on the latest terms.
    What do you mean
    "the other is only 1 they just saying it run x4 only withe ryzen and not the apu."
    What is a 7th gen APU? what is APU?



    the mobo only have 1 m.2 socket. The speed is depend on what cpu or apu you got.
    Reply to rgd1101
  5. But if you look at the ASRock I see 2 m.2 slots.
    Or am I incorrect in this assumption?
    https://www.newegg.com/Product/Product.aspx?Item=N82E16813157756&cm_re=ryzen-_-13-157-756-_-Product
    Reply to Joe0504
  6. Joe0504 said:
    But if you look at the ASRock I see 2 m.2 slots.
    Or am I incorrect in this assumption?
    https://www.newegg.com/Product/Product.aspx?Item=N82E16813157756&cm_re=ryzen-_-13-157-756-_-Product


    1st one use the CPU/APU lane
    2nd one use chipset lane max out at pcie 2.0 x2 or x4
    Reply to rgd1101
  7. So if I get this MOBO and a Ryzen 7 1700X or 1800X
    Could I get 2 m.2 ssd's?
    A Samsung 960 Pro 512gb as my primary m.2
    and another larger m.2, a 1Tb but with lesser read/write speeds for the secondary m.2 slot?
    Reply to Joe0504
  8. Joe0504 said:
    So if I get this MOBO and a Ryzen 7 1700X or 1800X
    Could I get 2 m.2 ssd's?
    A Samsung 960 Pro 512gb as my primary m.2
    and another larger m.2, a 1Tb but with lesser read/write speeds for the secondary m.2 slot?


    Yes you can get 2, read the manual
    http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Professional%20Gaming/index.asp#Manual
    Reply to rgd1101
  9. Joe0504 said:
    So if I get this MOBO and a Ryzen 7 1700X or 1800X
    Could I get 2 m.2 ssd's?
    A Samsung 960 Pro 512gb as my primary m.2
    and another larger m.2, a 1Tb but with lesser read/write speeds for the secondary m.2 slot?


    Yes you can get 2, read the manual
    http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Professional%20Gaming/index.asp#Manual
    Reply to rgd1101
  10. rgd1101 said:
    Joe0504 said:
    So if I get this MOBO and a Ryzen 7 1700X or 1800X
    Could I get 2 m.2 ssd's?
    A Samsung 960 Pro 512gb as my primary m.2
    and another larger m.2, a 1Tb but with lesser read/write speeds for the secondary m.2 slot?


    Yes you can get 2, read the manual
    http://www.asrock.com/mb/AMD/Fatal1ty%20X370%20Professional%20Gaming/index.asp#Manual


    Unfortunately the manunal never loads. The webpage just sits there and spins
    Reply to Joe0504
  11. I think the main question is why are you aready trying to pick a board for Zen with no benchmarks out for the processor.
    Reply to Zerk2012
  12. Joe0504 said:
    So it's been a long time since I've built a PC and I'm not up on the latest terms.
    What do you mean
    "the other is only 1 they just saying it run x4 only withe ryzen and not the apu."
    What is a 7th gen APU? what is APU?


    An APU is AMD's version of a CPU with integrated graphics that is not intended to be used with a video card.
    Reply to Chugalug_
  13. Chugalug_ said:
    Joe0504 said:
    So it's been a long time since I've built a PC and I'm not up on the latest terms.
    What do you mean
    "the other is only 1 they just saying it run x4 only withe ryzen and not the apu."
    What is a 7th gen APU? what is APU?


    An APU is AMD's version of a CPU with integrated graphics that is not intended to be used with a video card.



    So are the Ryzen 7 series CPU or APU?
    Reply to Joe0504
  14. Joe0504 said:
    Chugalug_ said:
    Joe0504 said:
    So it's been a long time since I've built a PC and I'm not up on the latest terms.
    What do you mean
    "the other is only 1 they just saying it run x4 only withe ryzen and not the apu."
    What is a 7th gen APU? what is APU?


    An APU is AMD's version of a CPU with integrated graphics that is not intended to be used with a video card.



    So are the Ryzen 7 series CPU or APU?



    https://en.wikipedia.org/wiki/Zen_(microarchitecture)#Desktop_processors
    Reply to rgd1101
  15. CPUs, unless it has the Axxx prefix, it isn't an APU.
    Reply to Chugalug_
  16. hi guys, I'm struggling with this also.

    I was thinking of using 2x m.2 in raid 0 for my boot drive. this appears common support on intel boards.

    all the X370 boards from all the manufacturers that have two m.2 slots have the same restriction of

    M.2 3.0 x4
    and
    M.2 2.0 x4

    this would appear to defeat the purpose of raid 0 across the two m.2's

    can anyone comment if this restriction is caused by the Ryzen architecture itself or the motherboard design?

    thanks

    ps. I've just notice the MSI board supports m.2 3.0 and U2 for boot raid. at 32gbps. unfortunately the U2 connect is stuck out the back of the machine

    pps. or is the whole idea pointless
    Reply to daveangel
  17. Do you have a reason for getting raid 0?
    Reply to rgd1101
  18. only possible performance uplift. I will have to purchase a m.2 drive and getting 2x 512's over a 1tb is easy if there is an advantage
    Reply to daveangel
  19. And you need it for?
    Reply to rgd1101
  20. cost neutral solution
    Reply to daveangel
  21. Go Raid 1, Raid 0 offers a critical flaw in that if one drive dies all your data is gone with no redundancy etc.
    You can always change them back to separate drives if you fill up one drive.
    I however would stick with a single 1TB SSD, RAID 0 is pointless with SSDs imo, all risk little reward.
    Reply to Chugalug_
  22. daveangel said:
    only possible performance uplift. I will have to purchase a m.2 drive and getting 2x 512's over a 1tb is easy if there is an advantage


    RAID 0 with SSD's (of any type)?
    Just don't.

    SATA III drives - http://www.tomshardware.com/reviews/ssd-raid-benchmark,3485.html
    NVMe drives - http://www.tomshardware.com/reviews/samsung-950-pro-256gb-raid-report,4449.html

    Seriously...don't
    Reply to USAFRet
  23. Agreed, I would not do raid on boot drive. Especially with m. 2s.... They are plenty fast enough with little real world noticeable improvement. I was in search of best possible speed on a recent Kaby build and after getting my m. 2s in raid and the system nearly done, I did a bios update and that killed my raid. Back to square one in reinstalling everything again. So not worth the hassle!
    Reply to CalifLove
  24. Joe0504 said:
    So I'm trying to understand the different X370 motherboards and looking the descriptions on newegg.
    I'm building a new PC and will be building an AMD Ryzen system.
    I plan to get an NVMe Samsung 960 Pro and use it for my boot drive.
    I also would like to get a second m.2 drive.
    So I'm trying to understand the the difference between these 2 m.2 slots on each board listed;
    ASUS Prime X370-Pro
    - 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110(PCIE 3.0 x4 and SATA modes) storage devices support
    AMD 7th Generation A-series / Athlon Processors
    - 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110(PCIE 3.0 x2 and SATA modes) storage devices support

    ASUS ROG Crosshair VI Hero
    - 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support
    AMD 7th Generation A-series / Athlon Processors
    - 1 x M.2 Socket 3 with M Key, type 2242/2260/2280/22110 (SATA mode) storage devices support

    MSI X370 GAMING PRO CARBON
    &
    MSI X370 XPOWER GAMING TITANIUM
    Just says 2 x M.2

    And the 3 from ASRock
    Fatal1ty X370 Gaming K4
    X370 Taichi
    Fatal1ty X370 Gaming
    1 x Ultra M.2 Socket (M2_1), supports type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen3 x4 (32Gb/s) (with Ryzen Series CPU) or Gen3 x2 (16Gb/s) (with A-Series APU)*
    1 x M.2 Socket (M2_2), supports type 2230/2242/2260/2280 M.2 SATA3 6.0Gb/s module and M.2 PCI Express module up to Gen2 x2 (10Gb/s)*
    * Supports NVMe SSD as boot disks
    * Supports ASRock U.2 Kit

    Am I correct in understanding that the second m.2 on the ASUS ans ASRock that the Samsung 960 Pro won't benefit from this second m.2 speed wise?
    If so, which NVMe would be a good secondary drive for these slots?
    Reply to Bestchess
  25. Presently, i don't see any motherboards with 2 M.2 Ultra or lets say Pcie 3x4 on AM4 motherboards. So we have to wait...but the possibility to have 2 samsung 960 in raid 0 seems not there.
    Reply to Bestchess
  26. I know this is a a bit old now of a thread but so the suggestions now are to not use raid 0 for using multiple SSDs or m.2s? I've read a couple articles stating the speed difference it makes compared to running solo....including on asus' site and this article is from 2016...most other ones were from 2013 why I was a little uneasy about it..I know how it goes when people benchmark quickly and find oh it works faster...but don't weigh in any cons.
    https://rog.asus.com/articles/hands-on/easy-guide-to-ssds-sata-msata-m-2-and-u-2/

    ALSO on a side note...anyone have any preference or opinions on the best m.2s? Or even good quality but still budget worthy?
    Reply to dslatsh
  27. dslatsh said:
    I know this is a a bit old now of a thread but so the suggestions now are to not use raid 0 for using multiple SSDs or m.2s? I've read a couple articles stating the speed difference it makes compared to running solo....including on asus' site and this article is from 2016...most other ones were from 2013 why I was a little uneasy about it..I know how it goes when people benchmark quickly and find oh it works faster...but don't weigh in any cons.
    https://rog.asus.com/articles/hands-on/easy-guide-to-ssds-sata-msata-m-2-and-u-2/


    In some few use cases, RAID 0 can be beneficial.
    Copy large sequential files to and from another RAID 0 SSD array, for instance.
    And the benchmarks look awesome.

    For day to day use? Not so much.
    And as per my link above, with NVMe drives it can actually be slower than a single drive, due to the overhead of the RAID processing.

    Finally, then you have the added data hazard of the RAID 0. If either drive dies, or the RAID controller goes a bit wonky...all is lost across both drives.
    Reply to USAFRet
  28. Alright that sums it up...so stay away from RAID 0.
    Reply to dslatsh
  29. Yep, one dead drive = mental breakdown and your whole array's data is dead in the water.
    Reply to Chugalug_
  30. Sorry for responding to an old thread, I was researching a question about something else and saw this one and thought it was interesting.

    Here is the thing with raid 0 and SSDs, one SSD is actually already running raid 0. This is one reason why SSD perform much better than hdd, also why they are not as reliable. The data is stored across several modules on one drive. Therefore, larger drives will have better performance. A 512 Samsung pro will be faster than a 256 Samsung pro and a 1 TB will be faster than a 512gb. So when you put SSDs in raid 0, its kinda like putting 4 disc in raid 0 and you have a much higher probability of failure and you add additional latency. The latency does not matter to the hdd because they are so much slower than an SSD that raid 0 nearly doubles performance. But because SSDs are much faster, the latency becomes an issue and the performance increase is negligible.
    Reply to feelinfroggy777
  31. CalifLove said:
    Agreed, I would not do raid on boot drive. Especially with m. 2s.... They are plenty fast enough with little real world noticeable improvement. I was in search of best possible speed on a recent Kaby build and after getting my m. 2s in raid and the system nearly done, I did a bios update and that killed my raid. Back to square one in reinstalling everything again. So not worth the hassle!


    He wasn't asking if you would do raid or if anyone else would do raid I would do raid with NVME. I have a 32TB server set up and plenty of space to save images of my OS's and have em back up and running in a matter of 20 minutes if my OS drives fail. So I raid 0 OS drives all the time. There not constantly breaking either. So since I have so much storage and it's time for a new build I was looking into M.2 NVME in raid 0 for OS drives obviously I would want these across PCIE lanes. Intel x299 does this but only with Intel SSD's apparently and it doesn't look like AM4 does it at all. MSI lied and said one of their boards does it but then took that statement back. That was in a review of one of their boards. I hate when looking into PC stuff online you always get people saying don't do that or I wouldn't do that. No one cares what you would do. Some people want to do crazy shit like Raid 0 there OS with 2x NVME SSD because they can. You don't need triple SLI 1080 TI but I gaurantee some people have it.
    Reply to shonuffpcrepair
  32. How many sata ports would be sacrificed to use an m.2 in an asus rog strix x 370 motherboard? I was thinking about getting an m.2 evo drive and couldn’t find an answer in the manual
    Reply to jared.micheal.larson
  33. Next time start your own thread
    Answer is none. because for ryzen cpu, the m.2 is from the cpu. not using any sata one
    Reply to rgd1101
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