@Amivit - where are you seeing everything else is limited to x1? I can possibly change these in BIOS for you for the rest of the lanes, if you can connect something to a lane and find out exactly which lane is used for that port (1-8)
See image below, these are the options, two of these for 1-4 + 5-8 (All currently set to 4x1)

However, I would not adjust these until you have a hardware flash programmer in hand, in case something disables your screen and you need to recover BIOS.
You need CH341A ($2.50 on ebay) and SOIC8 test clip cable ($3.50 on ebay)

Whenever I modify a bios like in this case, the suspension mode of Windows 10 never works. I have to reset it to restart when I give it to suspend system, do you know the solution?,

My board GB B75M-D3H Bios F15 NVMe mod

Also check the power/sleep options for the NVME controller and drive itself in device manager if possible, make sure enabled.

Zitat von Fernando im Beitrag #3645

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Have you checked the Power Options of the OS and the Intel Management Engine (Firmware/Driver correlation)?

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That's not what he meant I think, you need to check them and be sure they are allowed to sleep or not, and or make adjustments if needed to your power/sleep options.

Does anyone have an idea will it work with my asus N751JK laptop? It has Intel HM86 motherboard, Haswell architecture.
As I understand it is very similar to ASUS G771JW laptop with HM87. Mod for this model is considered as tested and working, but it has 211 bios fw version. While mine N751JK only 205, released in mid 2015.

Should be fine @ViliusK

Can you check bios file for me? Did I make correct insertion? I would appreciate your help very much
One more question, when flashing with afudos, should I leave new file format .rom, or rename it to original .205?

Thanks in advance.

Thank you for accepting me

Is there any way to backup my BIOS and later, if flashing fails, recover it ?

@Fernando
Dear Win-raid member
I signup to tell everyone. Main board ASUS P8H77-M , Can use M.2 Nvme already,

1. Mod BIOS ASUS P8H77-M version 1306
2. Setup BIOS by AI Suite II (Find some information in this forum) [Guide] How to flash a modded AMI UEFI BIOS
3. Follow Guide and reading carefully you will success.

May the Nvme with you.