I installed a Samsung 960 EVO NVMe M.2 card in my Acer Aspire V5-951G-726Z.
The drive turns up in the windows disk manager but when I try to initialize it it says "Illegal function call". A rescan then removes the drive from the index. (Also, connection to the Virtual Disk Service takes a really long time...)
Does anyone have a suggestion how to get the drive operational, or at least how to get better diagnostics?
Before asking here I have:
* Installed Windows 10 Pro Creators Update (version 1703.15063.296).
* Updated Acer BIOS to V1.14 and asserted the samsung drive shows up inside BIOS.
* GPT partitioned the original hybrid drive and set Acer BIOS to UEFI with secure boot.
* Installed the Samsung_NVM_Express_Driver_22
Confirmation of PCIe x4I then asked for compatibility in an old similar thread and got an awesome reply from brummyfan2, where he said there was support if I have a PCIe x2 or x4 slot.
I ran the suggested HWINFO64 and can confirm x4 support. (Screenshot included)
I'm pretty much at roads end now. I guess I havn't tried just reinstalling Windows 10 directly on the NVMe-drive and see what happens, but I'd rather see that it works first and then clone the boot partition to the new drive...
Anyone?