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Samsung SM961 NVMe Thread - Page 48

post #471 of 516
Has nobody an idea, why my write-speeds are so low in AS SSD Benchmark and CrystalDiskMark?
My PC
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Samsung M.2-NVMe SM961 (MZVKW1T0HMLH-00000), 1 ... Samsung SSD 850 EVO, 1TB HL-DT-ST DVDRAM GS40N Noctua NH-D15 
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My PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen 7 1800X, @3,95Ghz ASUS ROG Crosshair Hero VI (AM4 370X) ASUS DirectCu II (Nvidia GeForce GTX 670) G.Skill Trident Z F4-3200C14D-32GTZ, 3200 MHz, ... 
Hard DriveHard DriveOptical DriveCooling
Samsung M.2-NVMe SM961 (MZVKW1T0HMLH-00000), 1 ... Samsung SSD 850 EVO, 1TB HL-DT-ST DVDRAM GS40N Noctua NH-D15 
OSMonitorKeyboardPower
Windows 10 Enterprise 2016 LTSB, 64 Bit ASUS MS238H OZONE Strike Battle Spectra Corsair AX860I, 860 W 
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post #472 of 516
Can someone help me? I remember looking at this thread a while ago and there was a Google Drive with all the drivers people are using. I can't seem to find it using search. Can someone reply to me with that link or something similar? I want to test some drivers. Thank you.
post #473 of 516


Not too shabby...
post #474 of 516
Is the 960 Pro basically identical to the SM961?

I'm doing a new build and curious if I should get a 1TB 960 Pro or just re-use my "old" 1TB SM961...

Any faster M.2 drives in existence or coming out soon?
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Zybane
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Samsung 960 Pro - 1TB Windows 10 Pro Asus PG27VQ 27" Curved 165Hz G-Sync Razer BlackWidow TE Stealth Chroma 
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post #475 of 516
Thread Starter 
Quote:
Originally Posted by CallsignVega View Post

Is the 960 Pro basically identical to the SM961?

I'm doing a new build and curious if I should get a 1TB 960 Pro or just re-use my "old" 1TB SM961...

Any faster M.2 drives in existence or coming out soon?

Same as 960pro smile.gif Next gen with z-nand is not yet announced.

"
Z-NAND is small in capacity as it is based on a single level cell (SLC), in which one bit is allocated to each cell. However, Z-NAND has advantages in terms of response speed, power consumption and so on. A Z-SSD incorporating this type of NAND has a reading speed about seven times that of solid state drives in general.

Samsung Electronics’ preparation for large-scale Z-SSD production is to cope with the 3D XPoint SSD Intel and Micron Technology developed in April this year. 3D XPoint is a type of phase-change memory and its speed and durability overwhelm those of NAND on the market."





We are waiting for intel optane 900p now. Should hit stores in the end of October wink.gif
post #476 of 516
My apologies to OP and posters but thread seems to be the best knowledge source so far
Purchased a PM961 HEHP drive last February as a decent bang for buck upgrade with me Australian Peso (formerly known as a Dollar)...

I like the speeds originally, but seem to notice some "stuttering" recently which may or may not have been the drive itself but thought I'd try playing around with drivers and ended up here...

The first two grabs were from when I installed the drive in February and the last two are from 10 minutes ago after installing the V 2.2 drivers from the Samsung site here: (http://www.samsung.com/semiconductor/minisite/ssd/download/tools.html)








What surprised me is how much my read speed dropped from the default Windows drivers. I'm interpreting these results as marginally better, but wondering what thoughts you may have regarding such a big drop in read speed? Would it be worth trying any other drivers?

Regards,
Dave
Edited by GDavid - 10/7/17 at 7:18pm
post #477 of 516
Quote:
Originally Posted by GDavid View Post

My apologies to OP and posters but thread seems to be the best knowledge source so far
Purchased a PM961 HEHP drive last February as a decent bang for buck upgrade with me Australian Peso (formerly known as a Dollar)...

I like the speeds originally, but seem to notice some "stuttering" recently which may or may not have been the drive itself but thought I'd try playing around with drivers and ended up here...

The first two grabs were from when I installed the drive in February and the last two are from 10 minutes ago after installing the V 2.2 drivers from the Samsung site here: (http://www.samsung.com/semiconductor/minisite/ssd/download/tools.html)



What surprised me is how much my read speed dropped from the default Windows drivers. I'm interpreting these results as marginally better, but wondering what thoughts you may have regarding such a big drop in read speed? Would it be worth trying any other drivers?

Regards,
Dave



Probably you installed/(changed positions) other hardware to your pc, and pcie link which is shared, dropped from pcie 3.0 x4 to pcie 3.0 x2 or pcie 2.0 x4 , that's why you're limited to 1600mb/s.

Also your drive is near full so it's logical to be a little slower but no so much

You can verify with trimcheck if trim is enabled

Although stuttering hasn't anything to do with the above , and i don't believe the ssd to be responsible, but you could post a smart status of the ssd with hd sentinel.

Only the first image may have anything to do with stuttering due to the low 4k write which is so low because you hadn't turned off windows write cache buffer option on device manager, which is recommended with windows drivers but not necessary with samsung's ones
Edited by Eddie Obscurant - 10/8/17 at 10:44am
post #478 of 516
Wow, thanks so much for the succinct reply Eddie.. thumb.gif
Quote:
Originally Posted by Eddie Obscurant View Post

Probably you installed/(changed positions) other hardware to your pc, and pcie link which is shared, dropped from pcie 3.0 x4 to pcie 3.0 x2 or pcie 2.0 x4 , that's why you're limited to 1600mb/s.


Is there any way you know of to check the link status, or did I find it in the above pics?
Quote:
Originally Posted by Eddie Obscurant View Post

Also your drive is near full so it's logical to be a little slower but no so much

You can verify with trimcheck if trim is enabled
20% free space and have 2 other SSDs in the case, one for documents and one for games and faster storage...
Quote:
Originally Posted by Eddie Obscurant View Post

Although stuttering hasn't anything to do with the above , and i don't believe the ssd to be responsible, but you could post a smart status of the ssd with hd sentinel.
Is this enough, or should I purchase the app (which) I'll probably do over the next week...

Quote:
Originally Posted by Eddie Obscurant View Post

Only the first image may have anything to do with stuttering due to the low 4k write which is so low because you hadn't turned off windows write cache buffer option on device manager, which is recommended with windows drivers but not necessary with samsung's ones
Just turned off write cache buffer flushing option, will do a restart and get back...
The funny thing was when I installed it Win10 was the first thing written to it, the changes only came after I installed the Samsung drivers... Maybe it's time for a fresh install...

Thanks again,
Dave
post #479 of 516
Quote:
Originally Posted by GDavid View Post

Wow, thanks so much for the succinct reply Eddie.. thumb.gif

Is there any way you know of to check the link status, or did I find it in the above pics?
20% free space and have 2 other SSDs in the case, one for documents and one for games and faster storage...
Is this enough, or should I purchase the app (which) I'll probably do over the next week...

Just turned off write cache buffer flushing option, will do a restart and get back...
The funny thing was when I installed it Win10 was the first thing written to it, the changes only came after I installed the Samsung drivers... Maybe it's time for a fresh install...

Thanks again,
Dave

Your ssd is ok, you don't have to purchase hd sentinel for that. The only cool feature worth purchasing the pro version is the data refresh on non OS disk which is pretty useful if you have weak sectors on hdd.

You can check the pcie speed of your ssd either with samsung magician although i don't know if it will display properly since it doesn't fully work with oem ssds like your pm961 or you could try crystal disk info. If it's lower than pcie 3.0 x4 check your motherboard's manual to see with which other slots the bandwidth is shared.


post #480 of 516
Quote:
Originally Posted by Eddie Obscurant View Post

Your ssd is ok, you don't have to purchase hd sentinel for that. The only cool feature worth purchasing the pro version is the data refresh on non OS disk which is pretty useful if you have weak sectors on hdd.

You can check the pcie speed of your ssd either with samsung magician although i don't know if it will display properly since it doesn't fully work with oem ssds like your pm961 or you could try crystal disk info. If it's lower than pcie 3.0 x4 check your motherboard's manual to see with which other slots the bandwidth is shared.
Thanks again Eddie, magician doesn't work with OEM drives iirc.
Here's the crystal disk for the lol:
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