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Samsung SM961 NVMe Thread - Page 42

post #411 of 421
Get the 1TB SM961. I think most of the firmware bugs have been ironed out by now. It's on it's 3rd firmware revision.
Silent Design
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6700k @4.6ghz 1.248v (offset voltage) Gigabyte Z170X-Designare (F21) Palit Super Jetstream GTX 1080 @2152mhz 32GB Corsair Vengeance LPX 3000 @3333mhz 
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1TB Samsung SM961 PCIe 3.0 x4 250GB Hynix SL308 SSD 3TB Toshiba E300 5900RPM Low Energy HDD 16X DVD RW 
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Silent Design
(20 items)
 
  
CPUMotherboardGraphicsRAM
6700k @4.6ghz 1.248v (offset voltage) Gigabyte Z170X-Designare (F21) Palit Super Jetstream GTX 1080 @2152mhz 32GB Corsair Vengeance LPX 3000 @3333mhz 
Hard DriveHard DriveHard DriveOptical Drive
1TB Samsung SM961 PCIe 3.0 x4 250GB Hynix SL308 SSD 3TB Toshiba E300 5900RPM Low Energy HDD 16X DVD RW 
CoolingOSOSMonitor
Corsair H110i Arch Linux 64-bit Windows 10 Pro 64-bit IIYAMA Prolite XUB3490WQSU 
KeyboardPowerCaseMouse
Roccat Ryos TKL Pro Corsair RM850x Fractal Design Define R5 Black Roccat Kone XTD 
Mouse PadOtherOtherOther
Roccat Taito Arctic Cooling MX-4 Thermal Compound Phanteks RGB LEDs Fractal Design Define R5 Window 
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post #412 of 421
I have the same motherboard and same Samsung drive and firmware. But my DiskMark stats are different:

The difference may be that my drive is in the M2.2 socket near the videocard. In addition there is a bios setting in
Advanced Mode (F7) -> Advanced -> Onboard Devices Config -> M2.2.Bandwidth which I have set to x4.

Hope that helps.
post #413 of 421
Hi,
I have Gigabyte x99p-sli mb, i7 6800k cpu, one GPU Msi 5770, and Samsung SM961 m.2 nvme, but speed of this SSD isn't like the specs says.
Can I do anything in BIOS setup or driver install to fix this speed numbers?
Or, do I need to buy an PCIe x4 adapter for M.2?
Thanks
post #414 of 421
I understand that the Gigabyte x99p-sli mb has a M.2 slot which will work at PCIe x4. If your drive is slow it might be running at x2 or as a SATA drive. If you use something like HWiNFO64 to do a full list of your machine and drill down into the Bus elements you will be able to see if there's a PCIe port running at x4. If there isn't then you'll have to read the manual to see how to enable it in the UEFI.
post #415 of 421
Thanks for the quick answer. I'll try this today, and tell you the result.
post #416 of 421
I'd like to throw my hat in the ring and say that I had performance problems with the SM961 (1TB version) on a PC, which also consists of an Asus Prime X370-PRO motherboard and Ryzen 7 1800X processor, running Windows 10 Pro.

I ran various benchmarks, and it was primarily AS SSD which was able to show the problem. All the numbers in the Write column are far below where they should be, but the 4K number is especially abyssmal.



Crystal Disk Mark didn't really show much wrong:



The NVMe driver in use was the one from Microsoft.

After reading through this thread, I decided to try and install the latest Samsung NVMe driver for their shrinkwrapped NVMe drives, version 2.2.0.1703, even though it's not meant for OEM drives like the one I have.

This worked perfectly and basically fixed the performance problems completely:





I terms of real-world performance, I use this machine for software development in C++. Updating the driver shaved around 40 seconds off the roughly 16-minute build time on what I am working on.

I wanted to share this in case it helps anyone else.
post #417 of 421
I've installed HWinfo64, and found info about M.2 slot:
PCI Express
Version: 2.0
Maximum Link Width: 4x
Current Link Width: 4x
Maximum Link Speed: 5.0 GT/s
Current Link Speed: 5.0 GT/s
Device/Port Type: Root Port of PCI Express Root Complex
Slot Implemented: Yes
Hot-Plug: Not Capable
Hot-Plug Surprise: Not Capable
Slot Power Limit: 25.000 W
Emergency Power Reduction: Not Supported
Active State Power Management (ASPM) Support: None
Active State Power Management (ASPM) Status: Disabled
L0s Exit Latency: 256 - 512 ns
L1 Exit Latency: 2 - 4 us

It looks like PCIe slot for M.2 is Generation 2 (instead of 3), that can be the reason why I have poor speeds.
CrystalDiskMark 5.2.1 x64 (UWP) (C) 2007-2017 hiyohiyo
Crystal Dew World : http://crystalmark.info/
* MB/s = 1,000,000 bytes/s [SATA/600 = 600,000,000 bytes/s]
* KB = 1000 bytes, KiB = 1024 bytes

Sequential Read (Q= 32,T= 1) : 1672.993 MB/s
Sequential Write (Q= 32,T= 1) : 1363.116 MB/s
Random Read 4KiB (Q= 32,T= 1) : 163.030 MB/s [ 39802.2 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 127.246 MB/s [ 31065.9 IOPS]
Sequential Read (T= 1) : 1144.575 MB/s
Sequential Write (T= 1) : 1351.244 MB/s
Random Read 4KiB (Q= 1,T= 1) : 46.750 MB/s [ 11413.6 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 102.314 MB/s [ 24979.0 IOPS]

Test : 1024 MiB [C: 37.0% (88.1/237.9 GiB)] (x5) [Interval=5 sec]
Date : 2017/04/19 19:22:37
OS : Windows 10 Professional [10.0 Build 14393] (x64)

This is my results.
post #418 of 421
My M.2 slot runs as PCIe 3.0, with a maximum link speed of 8.0 GT/s (and confusingly a current link speed of 2.5 GT/s). It looks to me as if you cannot change the PCIe version of your M.2 slot - unless someone else can find a setting in the UEFI of your mb.

I've not tried an adaptor in the main PCIe slot so I can't say what the effect will be.
post #419 of 421
Quote:
Originally Posted by Eckson Tyyl View Post

I'd like to throw my hat in the ring and say that I had performance problems with the SM961 (1TB version) on a PC, which also consists of an Asus Prime X370-PRO motherboard and Ryzen 7 1800X processor, running Windows 10 Pro.

BTW
It seems that AMD still has something to improve with regard to the implementation of NVMe and especially SATA

http://www.tweaktown.com/articles/8073/amd-ryzen-ssd-storage-performance-preview/index.html
http://www.tweaktown.com/reviews/8131/plextor-m8pey-2-aic-nvme-pcie-ssd-review/index.html
post #420 of 421
Greetings all, I have the Eluk-Pro 1TB NVME SSDs in my laptop, not currently in RAID anymore. These are the PM961 OEMs, current firmware is cxy7301q. Was wondering if there was a newer firmware available that I could apply to these things safely? Or if this was the latest and greatest?
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