PCIe M2 adapter not detected.

[shokraaN_TR]

Hello everyone. If someone could help me with this it would be amazing. 

I just bought myself another M2 NVMe from Kingston and wanted to put it inside my PC. As I already have 2 M2 SSDs installed.

I bought myself a "Akasa M.2 SSD to PCIe Adapter Card" and tried to screw it into my PC. 

The PC works fine, but the new Kingston M.2 does not show up in "Disk Management. Does someone know why, or what I can do?
 

Please see attached file/links of my PC and the new hardware.
 

https://www.amazon.se/-/en/Akasa-Controller-Card-MBps-PCIe/dp/B01LZMIBVP

https://www.amazon.se/dp/B0DBR6TRZQ/ref=twister_B0DCDWMG7D?_encoding=UTF8

[Ardentio]

Try checking the UEFI to see if your new storage device is detected.
Also, have you tried swapping the new M.2 with the old one? Try installing the new M.2 directly onto the motherboard and the old M.2 into the adapter, then check if the new one is detected.
If the old one is not detected when placed in the adapter, the issue might be with the adapter, but if the new one is not detected, then the issue might be with the new M.2.

[Sawa Takahashi]

You should also check if the PCIe you connected your adapter into is enabled in the BIOS. Since PCIe lanes are a limited resource, it is a common practice to rediract said lanes to the GPU and m.2 drives and leave some PCIe slots inactive.

If the slot is active, you can also change the PCIe bus speed from auto to Gen4 or Gen3.

As a last ditch effort, you can test your adapter in another computer to see if it is detected.

Good luck !

 

 

[Tetras]

1 hour ago, shokraaN_TR said:

The PC works fine, but the new Kingston M.2 does not show up in "Disk Management. Does someone know why, or what I can do?

Which PCI-Express slot did you use?

 

I suspect that if both M.2 slots are in use, the slot you plugged the card into is disabled.

 

Edit: that's not exactly what the manual says, but there's a note.

[NOD0ZE]

Check BIOS. Slot is disabled or you're out of lanes.

 

Swap slots to validate drive isn't DOA.

[shokraaN_TR]

Hi! And thank you all for the replies!!

I just tried to the most simnple thing first. I pulled the expansion card out and put it back in again. The adapter card now lights up, it has power. But still no SSD to be found in disk management. Sound like I'm out of lanes right? @Sawa Takahashi @NOD0ZE @Tetras @Ardentio

[shokraaN_TR]

After some more research:
1 x RTX 3070ti (16x lanes)
2 x M.2 NVMEs (4x lanes each)

That should use all my 24 available lanes.

[Tetras]

24 minutes ago, shokraaN_TR said:

Sound like I'm out of lanes right? @Sawa Takahashi @NOD0ZE @Tetras @Ardentio

There's a note in your manual, did you see it?

 

Do you have anything in PCI_E2?

 

This is from the tech spec page:

Quote

When installing devices in M.2_2, PCI_E2 & PCI_E3 slots at the same time, PCI_E3 slot will be unavailable, and M2_2 slot only supports PCIe x2.

 

[shokraaN_TR]

20 minutes ago, Tetras said:

There's a note in your manual, did you see it?

 

Do you have anything in PCI_E2?

 

This is from the tech spec page:

 

No, I have my GPU in PCI_E1 (16x)

 

PCI_E2 (1x)is blocked by the GPU

 

PCI_E3 (4x)is currently occupied by the NVMe Adapter.

 

PCI_E4 (1x)is not in use and I cant use it for this purpose

[Sawa Takahashi]

On 4/26/2025 at 2:12 PM, shokraaN_TR said:

1 x RTX 3070ti (16x lanes)
2 x M.2 NVMEs (4x lanes each)

That should use all my 24 available lanes.

Only the GPU and first m.2 slots are using CPU PCIe lanes. The second m.2 slot is using lanes from the chipset.

You should really check your BIOS settings for disabled PCIe port, that's the most likely cause of your adapter not working at the moment.