SSD running at 1.5 Gb/s??

[Mervil]

I have a Samsung 850 Evo 250GB SSD. I bought this last year. I ran into an OS issue recently and decided to reformat my system.
I therefore re-installed windows 10 64-bit (Creator's update), as well as the latest drivers for my system from my MoBo's website. Motherboard is an AsRock Z170-Pro4s. It has 6 SATA III ports. I have 4 devices connected to the SATA ports. Obviously, one is the SSD. I installed the Samsung Magician software and it tells me the drive is running at 1.5 GB/s, and that a SATA III connection is available. Well, I know its available-- ALL SATA ports are SATA III. So for some reason, it says my drive is connected to a SATA I port when its connected to a SATA III. Does this mean the Magician software is wrong? Are the MoBo drivers screwed up (come to think of it, I never did install any specific SATA drivers; there weren't any on the website. Just the Intel INF drivers, in addition to Intel Rapid Storage Technology and Management Engine drivers).
My BIOS is updated to latest. The SSD's firmware is the latest. I'm using all 6 Gb/s cables (though this shouldn't matter). I've tried all the ports, and the software keeps saying "1.5 Gb/s".

One of the "drivers" I downloaded from the AsRock site was "Intel Rapid Storage Technology". When I open that program, it says my SATA transfer rate for that drive is 6 Gb/s. I'm hoping that this is correct and somehow the Samsung Magician is wrong; but my two Western Digital HDDs also have transfer rates of 6 Gb/s on that program...

Thanks!

 

[Paul NZ]

Did you install Samsung Magician 5??

 

[Mervil]

Did you install Samsung Magician 5??

Well, I installed 4.95, then it automatically updated to version 5. In both versions, this "bug" was present.

 

[Paul NZ]

May have to update the sata driver if you can find one

I had a similar prob here. It said the ssd was fine I installed windows in ahci mode, but after I had updated the sata driver in device manager. It said it wasnt running in ahci mode

So I had to reinstall a previous sata driver to fix it

 

[Ghost594]

I have a Samsung 850 Evo 250GB SSD. I bought this last year. I ran into an OS issue recently and decided to reformat my system.
I therefore re-installed windows 10 64-bit (Creator's update), as well as the latest drivers for my system from my MoBo's website. Motherboard is an AsRock Z170-Pro4s. It has 6 SATA III ports. I have 4 devices connected to the SATA ports. Obviously, one is the SSD. I installed the Samsung Magician software and it tells me the drive is running at 1.5 GB/s, and that a SATA III connection is available. Well, I know its available-- ALL SATA ports are SATA III. So for some reason, it says my drive is connected to a SATA I port when its connected to a SATA III. Does this mean the Magician software is wrong? Are the MoBo drivers screwed up (come to think of it, I never did install any specific SATA drivers; there weren't any on the website. Just the Intel INF drivers, in addition to Intel Rapid Storage Technology and Management Engine drivers).
My BIOS is updated to latest. The SSD's firmware is the latest. I'm using all 6 Gb/s cables (though this shouldn't matter). I've tried all the ports, and the software keeps saying "1.5 Gb/s".

One of the "drivers" I downloaded from the AsRock site was "Intel Rapid Storage Technology". When I open that program, it says my SATA transfer rate for that drive is 6 Gb/s. I'm hoping that this is correct and somehow the Samsung Magician is wrong; but my two Western Digital HDDs also have transfer rates of 6 Gb/s on that program...

Thanks!

Having the exact same problem. In my case i'm sure i have all the correct drivers installed. Hoping someone can help!

P.S: i've read on other threads that u gotta make sure it's not simply a bad reading by running tests to check if the speeds really are slower. Specially since intel is saying ur transfer rate is 6 gigs. I did that and sadly it s not the case... maybe you'll get lucky and your samsung magician is reading it wrong 😛

 

[Churria]

Same problem here!

Magician says 1.5 Gb/s (SATA 3 available)
Intel says SATA 6Gb/s

Recently I installed Windows 10 from scratch (Creators Update). Before that I didin't have this "problem".

Magician benchmarks:
Read: 545 MB/s
Write: 511 MB/s
Ranbom Read: 92072 IOPS
Random Write: 84930 IOPS

 

[Rapier_RO]

The problem is an incompatibility between Samsung Magician Software and some Intel RST Drivers (15.20.0.1020 for ex gave me issues). After installing BOTH Intel RST and Samsung software, Magician was reporting that SSD is connected to SATA 3 Gbps even if it was connected to a 6 Gbps port. Reverting to an older Intel RST Driver set, made Magician software display the correct speed (6 Gbps).

Try to update to latest Intel RST drivers or, if it's not working, install an older version