Thanks for the reply! And yes, I'm aware that there is no guarantee to get the top perfomance shown in advertised benchmarks, but at this point I'm starting to think that maybe the adapter(Jeyi sk9 pro) that I got is somehow limiting the perfomance. I mean, I googled a lot(almost two days in a raw) and noticed that all that people with z77 boards used Asus hyper m.2 x4 mini and got no perfomance issues WHATSOEVER. Probably going to order one from Ebay next week(did not order it because of ridiculous shipment price but i guess i have no choice). Anyway, thanks for the support!

@Yedige,
The benchs results you get are quite good and are conformant to Samsung specifications for 960EVO 250GB model.
I don't see any performance problems.
Here are some benchs I done when 960EVO was plugged into my old P8Z77-V Deluxe machine:

@Yedige,
on Z77 machine I do use DT-120 adapter or Kryo M2 adapters. Both are PCIe V3.0 x4 conformant.
The PCIe slot used for the add-in card is important and BIOS settings should be properly done to get the full speed.
According to your results all does seem correct.
Replacement with another PCIe adapter will not change the measured performances which are already quite correct.

I have sus Z9PE-D8 WS board、I want to use Samsung SM961 ssd 、but i don't know what cant i do? EFI bootloader method? or nvme bios?
what can i do ? please help me

Hello Fernando!

I have ASUS N751JK Notebook (with AHCI / UEFI ) and a Samsung PM961 M2 NVMe PCIe SSD , can i make the ssd bootable for win 10 pro? Or is there any official or preinjected BIOS with fully working NVMe support?
Cuz my problem is, i made bootable win 10 installer USB 3.0 with GPT for Uefi and a second with MBR. I could install it to my SSD , after the succesfully install, my windows cannot boot..
On my other hard drive's Windwos 10, the device manager and windows detect my PM961, Samsung NVMe driver installed, NVMe contoller already in the list, i can use it for a secondary drive, but not able to use it for my system booting.
So can u check it, is it possible to modify the BIOS or is there any working BIOS with working NVMe support?
You are my last hope, im rly tired after 3 days of triying..
Thanks

So could i use the other 2 method ?

Hello, Fernando.
When you have time can you take a look at modded bios for my ASUS Maximus VI Formula ? It`s all good to flash it ? I have modded with version 2 and 3 .... Which one should I use ?
Asus HYPER M.2 X4 mini card with a Samsung 960 EVO 250 GB will do the trick after flashing the bios?

Thanks a lot !

https://mega.nz/#!fXwRiRoL!Wd20u_220AAiS...4WvuMBUeFdH8JWU

hello my name is Christopher I just bought a m2 toshiba ocz rd400 with pci expres adapter.
My question is I have a motherboard msi Mpower z77 and I can not boot the disk m2 only let me do the installation but not boot as main.
in bios it comes out in pata name:
I made the nvme mod.
If someone could allude me or give me some solution I would be grateful

Hello dear friend, many thanks for the instruction. Everything worked!

But there was 1 problem. The PCIEx4 slot works in x1 mode, and my SSD only gives 200mb/s in all modes.
I put SSD in PCIEx16 (instead of a video card) and it became as good as 1800mb/s (at max).
Setting the PEG-GEN X (1,2,3) in the BIOS does not change anything. This motherboard is GA-Z68AP-D3-rev-2.0
https://www.gigabyte.com/Motherboard/GA-Z68AP-D3-rev-20#sp