Question ROG B450 F Gaming doesn't have x4 option in m.2 bios settings.

[enobano]

I got a B450 f gaming running 2600x and MSI 1060 gaming X using the pciex16_1 slot.
I bought a Sabrent 512 m.2 nvme the SB-512-ROCKET model.
After installed it on the m.2_1 slot. Bios option set to auto so it supposed to run at x4 but when I test it has same speed as my sata Samsung ssd that runs the os which is another crazy thing as according to Crystalmark they both read and wrote at around 9000mb/s.

Both sata 5 and 6 are empty as in manual it says they'd be disabled anyway if m.2_1 is used. Bios are updated to last version which is 2 months old.

Is there a hidden setting for this?

Thanks in advance.

 

[kerberos_20]

if u see 9000MB/s on your m.2 or sata, then youre not testing your drives but your RAM (drive cache)
increase space used for testing as the default 1GiB isnt enough to test your drive speeds

 

[enobano]

Wow hours of trying and didn't think of that!

Thanks alot. Sorted

if u see 9000MB/s on your m.2 or sata, then youre not testing your drives but your RAM (drive cache)
increase space used for testing as the default 1GiB isnt enough to test your drive speeds