Sabrent Gen5 2tb M.2 in Dark Hero M2.1 slot only runs at half speed

[VK101]

I have a dark Hero board with a Sabrent m.2 in slot 1 that should produce a speed of close to 14,000 MB/s, however i only achieve 7,800 or so.  I have reviewed the posts and others have had a similar issue, however there is no resolution that i can find.   I have what i believe to be the proper settings in BIOS.  I seem to be getting only Gen 4 rather than Gen 5 speed. Can you help. 

[Nate152]

Hello VK101

Check in the bios, Advanced tab, System Agent Configuration, PCI Express Configuration, that you have Gen 5 selected for the M.2_1 Link Speed.

Mine shows only Gen 4 because I'm using a Gen 4 SSD.

[VK101]

interestingly i have set it to

 

gen5 from auto, however it also displays “not present”? however it certainly is present!!   i have bios 1202

[VK101]

it appears to be at gen 5 however crystal disk doesnt show that speed??

 perhaps the disk is faulty although this is the second i have tried 🤕

[Nate152]

Do you have the Sabrent 5 installed in the M.2_1 slot?

It would be this slot in the picture. 

[VK101]

yes

[VK101]

that is my C system drive a 2tb Sabrent gen 5

[Nate152]

Strange your drive is showing not present in the M.2_1 slot.

Have you installed the chipset driver for your motherboard?

Does Device Manager show any missing drivers or abnormalities with your Sabrent 5?

In CrystalDiskMark under settings, have you selected NVME Mode?

[VK101]

i am uptodate on all drivers per Amoury Crate. 

i have no missing drivers in device manager 

and yes i have selected nvme. 

a real puzzle

 

[VK101]