Samsung 850 Pro great in Windows 8.1 but blows in 10

Toggle sidebar Toggle sidebar
C

CRS Talon

Reputable
Jan 28, 2016
5
0
4,510
Hello all,

I have several Samsung 950 Pro's and Samsung 840 Pro's in multiple machines and all run great in Windows 7 Ultimate, Windows 8.1 Pro, and Windows 10 Pro.


However, I needed more space so I bought a Samsung 850 Pro as I am nothing if not loyal to a brand that runs well for me.

Problem is, if I put the drive in a Win 10 Pro machine it is recognized and asks to be initialized, but fails the partition and ntfs quick format everytime.

I have already tried swapping power cables and Sata cables etc, so next I brought a 840 Pro drive from another PC and hooked it up to the exact same port, cables etc and it performs flawlessly.


I figured the next step was to try the 850 Pro in the machine I borrowed the 840 Pro from. It initialized, quick formatted just fine and Magician shows it running at speeds and iops it is advertised for.

Both are Intel based systems, and while I am sure there are some differences in drivers and chipsets etc, the only main difference is Windows 8.1 pro it works fine, on Windows 10 Pro it blows chunks.


I went ahead and formatted it on the 8.1 pro machine without a hitch then transferred it back into the 10 Pro machine and while Windows recognizes it, Samsung Magician recognizes it and says it is in good health, it wont successfully benchmark in magician and also file transfers are slow as mud.

A file transfer will start out at a measly 132MB/s and drop to 32MB/s and then crawl the rest of the way at KILOBYTES per second.

Magician says Firmware is up to date etc. Smart info shows some CRC errors but so do my 950 and 840 pro drives.


Samsung offered to send me out a shiny new refurbished drive, but if I had wanted a refurbished drive I would have bought one at discount.


This is the 3rd drive in a row to do this. I don't want to exchange it yet again and am thinking of getting another 840 Pro for now.


Yet I see tons of folks praising their 850 Pro's on Windows 10.


Any thoughts on something I missed or some cool trick to get this running as it should on Win 10 Pro?

Thanks as always,

 
Solution
Darkbreeze
Are you on the latest bios version? Again, check and compare manually. Usually storage controller errors or incompatibilities are directly related to bios support or the hardware device itself. If you are on the latest bios and still have the issue, I think I'd start suspecting a problem with the device or motherboard storage controller.

If the drive works fine on another machine, I'd suspect that it might be the board. Something about the storage controller might not like the 3D nand or something. I'd try updating the motherboard bios first. Maybe try the drive in another machine WITH windows 10. If you can eliminate the drive itself as the problem using windows 10 connected to another machine, maybe you can at least narrow it down...
Sort by date Sort by votes
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,411
7,631
176,790
Have you tried checking to see that your motherboard on the Windows 10 machine has the latest, most recent bios installed, and that your storage controller drivers are all up to date/most recent versions? Manually. That is, not relying on Windows update or any automatic utilities to tell you whether the drivers are up to date or not.
 
Upvote 0 Downvote
C

CRS Talon

Reputable
Jan 28, 2016
5
0
4,510
Hello Darkbreeze,

Thank you for posting. Some things definitely changed when upgrading the drivers manually direct from MSI's site.


Before making any changes, Samsung magician showed the 850 Pro as being in good health, connected to a sata3 port etc. Windows showed a standard Sata AHCI Controller in device manager.

SSD%208.png


However it was painfully slow moving files around and Magician couldn't complete a speed test of the disk.



After installing the latest driver from Manufacturers website it installed IRST, the controller now shows up as an Intel 9 series sata controller.

SSD%206.png



Now Magician can speed test the drive, The drive is performing better, but it is reporting that the drive is connected to a SATA2 port and thus not operating at full speed.

SSD%205.png



Which is incorrect, my mobo has zero SATA2 ports.

The 850 Pro earlier was reported as being connected via SATA3 port. The drive did not change ports or cables etc. Oddly enough if I throw another 840 Pro into that exact slot and use the same cables the drive identifies as sata3 port and functions at full speed.


So something happened but not in a way I anticipated. Anything else you can think of I can try?


Thanks for the help, I truly appreciate it.

Scott
 
Upvote 0 Downvote
Darkbreeze

Darkbreeze

Retired Mod
Jun 24, 2014
80,411
7,631
176,790
Are you on the latest bios version? Again, check and compare manually. Usually storage controller errors or incompatibilities are directly related to bios support or the hardware device itself. If you are on the latest bios and still have the issue, I think I'd start suspecting a problem with the device or motherboard storage controller.

If the drive works fine on another machine, I'd suspect that it might be the board. Something about the storage controller might not like the 3D nand or something. I'd try updating the motherboard bios first. Maybe try the drive in another machine WITH windows 10. If you can eliminate the drive itself as the problem using windows 10 connected to another machine, maybe you can at least narrow it down.

Also, did you check to see that the drive is aligned correctly?

http://lifehacker.com/5837769/make-sure-your-partitions-are-correctly-aligned-for-optimal-solid-state-drive-performance
 
Upvote 0 Downvote
Solution
C

CRS Talon

Reputable
Jan 28, 2016
5
0
4,510
Hey Dark Breeze,

I had the latest BIOS, drive was aligned correctly according to that link you provided etc.

I selected your answer cause I think you're right that something on my board doesn't like that 3d NAND. The drive works flawlessly in my other machines, so I just swapped a 840 PRO drive out of an older PC and both drives are running full tilt as they should be. I wanted the newer SSD on my latest PC but no biggie. I think I will try another 3d NAND ssd maybe a few months down the road on this PC maybe after a bios update or a controller / chipset update.

Anyway I truly appreciate your time and help!!

Thanks,

Scott
 
Upvote 0 Downvote
C

CRS Talon

Reputable
Jan 28, 2016
5
0
4,510
No Worries Dark Breeze,

I figure the 840 PRO should last long enough until someone comes out with a good nvme adapter for m.2 SSD's. I would love to have 3 950 Pro's cooking full tilt at once. That speed is sweet.

My board is MSI X99A Gaming 7 https://us.msi.com/Motherboard/X99A-GAMING-7.html#hero-overview


Some things still don't make sense, like why after updating the controller drive and ISRT why only one controller shows as Intel and the other one still shows as generic? The manual doesn't say something like (ports 1-4 are intel and 5-10 are marvel etc etc).


But at the same token, I have tried moving the cable to every other sata port thats free/ unused and I still have same issues. Plus the 840 Pro in the same exact port location runs perfect. So I dunno, lol I will keep checking for BIOS updates ( i already have the current one released only a few weeks ago) and chipset driver updates etc. Check the 850 Pro in there once in a while and see if something changed lol


But again no worries and no sorries. I truly appreciate the help regardless of outcome.


Scott
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom