Overclock.net › Forums › Components › Hard Drives & Storage › SSD › [Official] Samsung SM951 Owners Club
New Posts  All Forums:Forum Nav:

[Official] Samsung SM951 Owners Club - Page 114

post #1131 of 1381

Hey dude,

 

gotta say that from the feedback i've seen it's actually much easier and less hassle to run the boot drive from an expansion card is it seems to get recognised by most OS's imemdiately with few issues. Also a tech at scan recommended that as well and they are very good..

 

The problems i've read about have been with the dedicated M2 sockets with booting/installing..

 

Good luck

Beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5820K @ 4Ghz boost Asus Sabertooth X99 EVGA 980Ti SC+ with EKWB waterblock 16GB Corsair Vengeance 2666 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 M.2 PCIex NVMe Samsung SM951 M.2 PCIex NVMe Samsung Evo Western Digital Red 
CoolingOSMonitorKeyboard
EKWB Predator 360 Windows 10 Dell Ultrasharp 27 Steel Series 
PowerCaseMouse
Corsair RM850i Haf-X Logitech  
  hide details  
Reply
Beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5820K @ 4Ghz boost Asus Sabertooth X99 EVGA 980Ti SC+ with EKWB waterblock 16GB Corsair Vengeance 2666 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 M.2 PCIex NVMe Samsung SM951 M.2 PCIex NVMe Samsung Evo Western Digital Red 
CoolingOSMonitorKeyboard
EKWB Predator 360 Windows 10 Dell Ultrasharp 27 Steel Series 
PowerCaseMouse
Corsair RM850i Haf-X Logitech  
  hide details  
Reply
post #1132 of 1381
THE AMD DISADVANTAGE

In case anybody looks for this someday.

My speeds aren't so hot on my AMD mobo. PCIe 2.0 holds the SM951 back substantially. When you look at the specs for this SSD in the product listing, it tells you that it's backward compatible with PCIe 2.0, but it doesn't mention that; "Oh, by the way, your speeds will be considerable slower. Oh well, I can always transfer this SSD over to my new ZEN system a year from now or whenever I build it, assuming AMD finally moves up to PCIe 3.0.




BTW: AS SSD Benchmark goes totally wonky trying to measure my write speeds. It must not be compatible with PCIe 2.0. It shows my seq write speed on my SM951 NVMe down around 100 MB/s but it measures accurately on my HDDs and on my SATA connected Samsung 850 Pro SSD. If I retest with Crystal Mark immediately afterward, everything is fine.

Motherboard: Gigabyte GA-990FX-GAMING
CPU: AMD Phenom II x6 1090T
post #1133 of 1381
I think maybe in another year or so, the mobo mfgrs will have the kinks ironed out, but yeah, I think most people are getting the adapter card and throwing AHCI SSDs into their systems just to avoid the fuss and muss.
post #1134 of 1381
To be honest I'm running my SM951 NVME on my X99 Deluxe's M.2 slot (no adapter) and it works great...

I've also heard reports similar to mine from many users so I guess one should always try to use the provided m.2 slot prior to buying a (probably useless) adapter smile.gif
Mighty Nano
(11 items)
 
Black or White
(20 items)
 
 
CPUMotherboardGraphicsRAM
i7 6700k ASUS Maximus VIII Impact EVGA GTX 1070 sc 16GB Corsair Vengeance LPX 3000mhz 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500GB EK Predator 240 Windows 10 Acer Predator XB270HU 
PowerCaseMouse
Corsair AX760 Fractal Design Define Nano S Corsair M65 PRO RGB 
CPUMotherboardGraphicsRAM
Intel i7 5820k ASUS X99 Deluxe U3.1 ASUS GTX 980 Strix 16GB G.Skill Ripjaws 2400 MHz 
Hard DriveHard DriveHard DriveCooling
500GB Samsung 850 EVO 500GB Samsung 840 EVO 120GB Samsung 840 EVO EK Supremacy EVO 
CoolingCoolingCoolingCooling
EK Fullcover Waterblock for GTX 980 Alphacool NexXxos ST30 420mm Radiator Alphacool NexXxos UT60 280mm Radiator EK D5 PWM Pump 
CoolingOSMonitorPower
8x Noctua NF-A14 PWM IndustrialPPC Windows 10 Pro Acer H257HU 2560x1440 IPS Corsair AX760 
CaseMouseMouse PadAudio
Phanteks Enthoo Pro ASUS ROG Gladius Steelseries QCK Heavy ASUS Crystal Sound 2 
CPUMotherboardGraphicsRAM
Intel Core i7 4790k ASUS ROG Maximus VII Gene ASUS GTX 980 Strix G.Skill TridentX 2x8GB 
Hard DriveHard DriveCoolingCooling
Samsung 850 PRO 500GB (OS) Samsung 840 EVO 500GB EK supremacy EVO - Original CSQ Alphacool UT60 240mm Full Copper 
CoolingCoolingCoolingOS
Alphacool ST30 240mm Full Copper EK-FC980 GTX Strix (Nickel-Plexi) fullcover + b... Phobya DC12-400 PWM Pump Windows 7 
PowerCaseMouse
Corsair AX760 Platinum Corsair 350D Windowed ASUS ROG Gladius 
  hide details  
Reply
Mighty Nano
(11 items)
 
Black or White
(20 items)
 
 
CPUMotherboardGraphicsRAM
i7 6700k ASUS Maximus VIII Impact EVGA GTX 1070 sc 16GB Corsair Vengeance LPX 3000mhz 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500GB EK Predator 240 Windows 10 Acer Predator XB270HU 
PowerCaseMouse
Corsair AX760 Fractal Design Define Nano S Corsair M65 PRO RGB 
CPUMotherboardGraphicsRAM
Intel i7 5820k ASUS X99 Deluxe U3.1 ASUS GTX 980 Strix 16GB G.Skill Ripjaws 2400 MHz 
Hard DriveHard DriveHard DriveCooling
500GB Samsung 850 EVO 500GB Samsung 840 EVO 120GB Samsung 840 EVO EK Supremacy EVO 
CoolingCoolingCoolingCooling
EK Fullcover Waterblock for GTX 980 Alphacool NexXxos ST30 420mm Radiator Alphacool NexXxos UT60 280mm Radiator EK D5 PWM Pump 
CoolingOSMonitorPower
8x Noctua NF-A14 PWM IndustrialPPC Windows 10 Pro Acer H257HU 2560x1440 IPS Corsair AX760 
CaseMouseMouse PadAudio
Phanteks Enthoo Pro ASUS ROG Gladius Steelseries QCK Heavy ASUS Crystal Sound 2 
CPUMotherboardGraphicsRAM
Intel Core i7 4790k ASUS ROG Maximus VII Gene ASUS GTX 980 Strix G.Skill TridentX 2x8GB 
Hard DriveHard DriveCoolingCooling
Samsung 850 PRO 500GB (OS) Samsung 840 EVO 500GB EK supremacy EVO - Original CSQ Alphacool UT60 240mm Full Copper 
CoolingCoolingCoolingOS
Alphacool ST30 240mm Full Copper EK-FC980 GTX Strix (Nickel-Plexi) fullcover + b... Phobya DC12-400 PWM Pump Windows 7 
PowerCaseMouse
Corsair AX760 Platinum Corsair 350D Windowed ASUS ROG Gladius 
  hide details  
Reply
post #1135 of 1381
That makes sense, I mean, if you have an M.2 socket on you mobo already, you may as well try it. I understand that some of them may restrict you to only 2 PCI lanes but you might get 4 lanes using an adapter. My mobo seems to have conflicts if I'm also using the number 5 SATA port, which the manual doesn't shed clear light on, but that would quite possibly be true if I were using an adapter as well.
post #1136 of 1381
New to this forum and have been searching for an answer to my problem. I have a new HP zBook Studio that I bought with the Samsung SM951-NVMe drive, windows 10, quad core Xeon 2.8 Ghz, 16 GB DDR4, this thing should scream. Here is what I am getting for performance:


Not even sure where to begin. Using the default Windows drivers. Any help/ideas?
post #1137 of 1381

Most of the feedback i've seen just seems to suggest that an expansion card is easier to get an M2 to boot. Although i tried my M.2 socket first and had no isssues. My reason for buying the adaptor was so i could have two running. and honestly the exp cards are so cheap that it just made sense.

 

AFAIK most of the skylake and X99 MB's i've seen do provide 4 x 3.0 lanes (direct to CPU) for the M.2 socket but generally then disable 16_3 or 16_4 PCI-ex slots. I also found that having a regular SSD in the 2 SATAexpress ports also strangely lowered the speed of both my M.2 drives. That could be why your port 5 is causing issues?

 

@ slcfreddy Did some research and from what i can see the zBook Studio chipset (CM236) only supports two Gen 3 lanes for the M.2 hence the reduction in speed. but hey thats still almost twice as fast as regular SSD's and on a lappy too :-) I would also try using the Samsung 950 drivers as i did see a slight increase in performance with my 951 (5-10%).

Beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5820K @ 4Ghz boost Asus Sabertooth X99 EVGA 980Ti SC+ with EKWB waterblock 16GB Corsair Vengeance 2666 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 M.2 PCIex NVMe Samsung SM951 M.2 PCIex NVMe Samsung Evo Western Digital Red 
CoolingOSMonitorKeyboard
EKWB Predator 360 Windows 10 Dell Ultrasharp 27 Steel Series 
PowerCaseMouse
Corsair RM850i Haf-X Logitech  
  hide details  
Reply
Beast
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 5820K @ 4Ghz boost Asus Sabertooth X99 EVGA 980Ti SC+ with EKWB waterblock 16GB Corsair Vengeance 2666 
Hard DriveHard DriveHard DriveHard Drive
Samsung SM951 M.2 PCIex NVMe Samsung SM951 M.2 PCIex NVMe Samsung Evo Western Digital Red 
CoolingOSMonitorKeyboard
EKWB Predator 360 Windows 10 Dell Ultrasharp 27 Steel Series 
PowerCaseMouse
Corsair RM850i Haf-X Logitech  
  hide details  
Reply
post #1138 of 1381
Quote:
Originally Posted by lordtyrion View Post

Most of the feedback i've seen just seems to suggest that an expansion card is easier to get an M2 to boot. Although i tried my M.2 socket first and had no isssues. My reason for buying the adaptor was so i could have two running. and honestly the exp cards are so cheap that it just made sense.

AFAIK most of the skylake and X99 MB's i've seen do provide 4 x 3.0 lanes (direct to CPU) for the M.2 socket but generally then disable 16_3 or 16_4 PCI-ex slots. I also found that having a regular SSD in the 2 SATAexpress ports also strangely lowered the speed of both my M.2 drives. That could be why your port 5 is causing issues?

@ slcfreddy Did some research and from what i can see the zBook Studio chipset (CM236) only supports two Gen 3 lanes for the M.2 hence the reduction in speed. but hey thats still almost twice as fast as regular SSD's and on a lappy too :-) I would also try using the Samsung 950 drivers as i did see a slight increase in performance with my 951 (5-10%).

I hear what you are saying about the Gen 3 lanes and I will try the 950 drivers. What is weird to me is that I have a Samsung 850 EVO (AHCI) in the second M.2 slot and it kicks the 951 NVMe right out the door, particularly on writes:
post #1139 of 1381
Quote:
Originally Posted by slcfreddy View Post

New to this forum and have been searching for an answer to my problem. I have a new HP zBook Studio that I bought with the Samsung SM951-NVMe drive, windows 10, quad core Xeon 2.8 Ghz, 16 GB DDR4, this thing should scream. Here is what I am getting for performance:


Not even sure where to begin. Using the default Windows drivers. Any help/ideas?

Use the Samsung 950 pro driver. Its linked in this thread somewhere.

If you do not want to do that for some reason then you could turn write cache buffer flushing off but this will increase your chance to lose data.
Skylake!
(15 items)
 
 
Old School!
(13 items)
 
CPUMotherboardGraphicsRAM
Intel 6700k 4.7ghz 1.37v (4.6 cache) ASUS Maximus VIII Hero Nvidia GTX 1080 FTW 16gb G Skill TridentZ 3600hz 16/16/16/36 @ 1.35v 
Hard DriveHard DriveHard DriveCooling
SM951 256gb Nvme 2 x Samsung 840 Pro 256gb Raid 0 Western Digital Black 1.5tb HDD Storage Corsair H110 GTX 
OSMonitorKeyboardPower
Windows 10 Yamakasi Catleap Q251 1440p ips Corsair K70 EVGA Supernova 850 G2 
CaseMouseMouse Pad
Corsair Carbide 600Q Roccat Kone Pure Roccat Taito 
CPUMotherboardGraphicsRAM
Ph.II BE 1090T 3.75ghz BE (1.4v) 3000NB (1.325v) Asus M4A88TD-M Evo/USB3 GTX 470 G Skill Eco 1333mhz 5-6-5-18-23 1T 
Hard DriveOptical DriveOSPower
Crucial C300 128gb SSD, 2 x 640gb Storage (Raid) DVD-RW Win 7 Home Premium 800W 
Case
Coolermaster 310 
  hide details  
Reply
Skylake!
(15 items)
 
 
Old School!
(13 items)
 
CPUMotherboardGraphicsRAM
Intel 6700k 4.7ghz 1.37v (4.6 cache) ASUS Maximus VIII Hero Nvidia GTX 1080 FTW 16gb G Skill TridentZ 3600hz 16/16/16/36 @ 1.35v 
Hard DriveHard DriveHard DriveCooling
SM951 256gb Nvme 2 x Samsung 840 Pro 256gb Raid 0 Western Digital Black 1.5tb HDD Storage Corsair H110 GTX 
OSMonitorKeyboardPower
Windows 10 Yamakasi Catleap Q251 1440p ips Corsair K70 EVGA Supernova 850 G2 
CaseMouseMouse Pad
Corsair Carbide 600Q Roccat Kone Pure Roccat Taito 
CPUMotherboardGraphicsRAM
Ph.II BE 1090T 3.75ghz BE (1.4v) 3000NB (1.325v) Asus M4A88TD-M Evo/USB3 GTX 470 G Skill Eco 1333mhz 5-6-5-18-23 1T 
Hard DriveOptical DriveOSPower
Crucial C300 128gb SSD, 2 x 640gb Storage (Raid) DVD-RW Win 7 Home Premium 800W 
Case
Coolermaster 310 
  hide details  
Reply
post #1140 of 1381
Updated to the Samsung 950 driver and wow what a difference. Thanks for the help!

First Test:


Second Test (after driver install)

Edited by slcfreddy - 2/13/16 at 10:58am
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: SSD
Overclock.net › Forums › Components › Hard Drives & Storage › SSD › [Official] Samsung SM951 Owners Club