@Fernando,
So, the iaStorA.sys driver handles any modern PCI chipset which has a "generic" capacity to talk with any NVMe devices whatever is the NVMe manufacturer device, and whatever is the NVMe standard compliance.. (v1.0, v1.1, v1.2,..)
Do you understand what are the exact roles of a MS native NVMe driver and/or specific NVMe manufacturer's drivers ?
For instance, in my X99 machine (see ANVIL, DriveControllerInfo screenshot)
-> iaStorA.sys handles X99 which drive directly some RAID Arrays of non NVMe devices
-> IANVME handles directly (not thru X99) i750 NVMe device
-> SECNVME handles directly (not thru X99) 960 PRO NVMe device
Do you share with me this vision ?

Thanks Fernando.
I ignored that Intel 100-/200-Series have an 'embedded' smart NVMe "capability" that other chipset such as X99 do not have.

Zitat von Flakigel im Beitrag #418

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Hallo,

i have tested the last Marvel Driver. He does not Support Trim. But you can solve this Problem, when u use the Standart AHCI Driver von Microsoft. The MS Driver have the same Speed.

Flakigel

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ASMedia ASM106x SATA drivers v3.2.1.0 (apart from SCSIport driver for XP/2k3 at v3.2.0.0)
https://mega.nz/#!kRgyiBaA!a34t1DuBzUSdl...HWMALV1XBOEfhHg

@Fernando,
I see on Station-drivers a new Software package for Intel RSTe driver v4.5.6.1009 WHQL.
However, I think "pure" driver remains v4.5.6.1004 WHQL.
Why i do no longer see the v4.5xx branch on this "Recommended AHCI/RAID and NVMe Drivers" sub-forum ?

Hi ,

I have Zbook G3 with Toshiba NVMe SSD ( exactly M.2 SSD Toshiba NVMe XG3 512GB THNSN5512GPU7 ) and i need install Windows 7 Pro from USB flash ( no CD-ROM in NB ) . When I start install Windows 7 pro from USB flash drive in start menu which i choose driver , everytime and with every version SSD drive ( 64bit OCZ NVMe driver v1.2.126.843 WHQL is corret drive i thing ) have a error menu with no SIGNED driver 32bit or 64bit ...bla bla bla .... and stop instalation . How i change installer Win7 which use no-signed SSD drive , or its any manual for this solution ? I try a few option ( install Win7 other PC install DRIVE and clonning to NB = dont work ) .

thanks so much

ps. i have same NB HP Zbook G3 , but witch SAMSUNG NVMe SSD and same ISO Windows 7 Pro work , no drive need . :)

Hi again , i have solution my problem for everybody have Toshiba SSD NVMe on to HP Zbook

http://h20564.www2.hp.com/hpsc/doc/publi...mr_na-c05040446

i miss correct install USB driver before :) thanks

Hi!

Sorry to bother, but surfing on the net I came across this forum where I think that (maybe) I can find an answer to my questions.

I just assembled a new rig:

Intel 5820k
Asrock X99X Fatal1ty Killer / 3.1
G. Skill Ripjaws 16 GB (4x4) 3200 mhz
Samsung 950 PRO NVMe 512 GB
etc.etc.

The OS is Windows 10 Professional / 64 bit

After installing the OS, the 950 PRO worked just fine (with the provided Microsoft driver). Then I installed the latest Samsung NVMe driver (ver. 2.0.0.1607) and got the feeling that my booting time from power on to OS became around 2-3 sec slower than before (with Microsoft driver).

I took a chronometer to check and it confirmed my impression.

I also did some bench with Crystal Disk Mark, that confused me even more: the results with Microsoft driver and Samsung driver were both satisfactory (in line with expectations, and for some scores like SeqQ32 read & write among the best I've see on the web for the same device) and not too dissimilar but....with Microsoft driver I got slighty better results on Seq (not Q32) & 4k read while worse on 4k write.
4k write score was already not so good even with Samsung driver (around 192 MB/s) but dropped to mere 150 MB/s with Microsoft driver.

The CPU is not OC (yet). All bios settings basically on default.

Here my questions:

1) the difference(s) in score between the two drivers is within the margins of error of the bench suite or rather indicate a real difference in performance?

2) how can be explained the 2-3 sec slowed startup if the benchmark scores with MS and Samsung driver are pretty similar?

3) I read online that the latest Samsung driver can generate some problem "unsafe shutdowns"....but also that Microsoft driver have sometime writing issues (however, not sure wich version we are talking about here...maybe this was already fixed?).....can someone enlight me?

4) do you have suggestions and / or settings "tricks" (bios / OS / whatever) to get the best performance from my 950 PRO? Because I just mounted the drive, installed the OS and tested both MS and Samsung drivers without changing anything else either in the bios or in the operating system: is this all that I need to do?


Thanks in advance to anyone willing to help!

Thank you Fernando.

Ok I will do more bench & tests just to be sure.

Just another question: I downloaded the latest Intel Rapid Storage driver setup for my MB from Asrock website but the setup program fails....for what I read somewhere it seems that 950 PRO is not supported. If this is true, then I can do without the RSTe driver, right? In other words I can skip tips #7 and #9 (LPM disable) of your "guide to best SSD performance".....it is so?