SSD NVMe using PCIe 1.0 x2 mode only instead of 4.0 x4 - HP 15-db1041nm laptop

[tarmiricmi]

The issue is that the laptop from 2019 uses PCIe 1.0 x2 data transfer mode only, instead of PCIe 4.0 x4 what should be supported both by laptop and is supported by SSD.

Laptop is using latest bios available, SSD as well. The disk is not throttling, the temps are around 35 C.

The BIOS doesn't offer any option whatsoever regarding configuring hard drive and/or PCIe. 

Can someone help?

PS

see edits below!

Userbenchmark.com

Edit:

Using HWiNFO64, it confirmed the controller supports PCIe 4.0 x4 mode

Edit2:

After some researching, I have concluded this must be a BIOS issue, but as stated, the BIOS itself unfortunately doesn't allow selecting PCIe mode.

This issue needs to be fixed in the BIOS update!! The laptop is still usable if that's fixed!

Edit3:

Similar thread here. One user said:
There is no hidden advanced mode and no setting that will let you switch PCIe mode. 

Edit 4:

Changed this setting:

Added the results of Crystal Disk Benchmark with changed test sizes. Still far away from expected results:

Some of those speeds contradict the Crystal Disk Mark current mode of PCIe 1.0 x2 so it is not clear what is going on. I will try other SSD in this laptop, and this particular SSD in other laptop(s) and post the findings here.

Shame! Update the BIOS properly, after 6 years!!!

[Jaden20]

Hello, how were you able to solve it exactly step by step, in case what date of bios update did you use, since I have the same problem, my Hp has two storage inputs, the Sata and the ssd nvme (I'm using only the nvme) and it only registers PCIE 1.0 that it is using, it does not reach PCIE 3.0, I am using windows 10 22h2

[tarmiricmi]

Hello,

I'm using latest BIOS version available, that is F.43 Rev.A available here.

Unfortunately I haven't solved the issue, as described in my post, since the BIOS doesn't contain any advanced options so the only possible solution is to wait for the BIOS version that could fix the issue.

The both facts are very sorry, because 1) the HP doesn't allow any substantiate configurable options from within the BIOS and 2) that BIOS is obviously flawed from the first version that came with the laptop some 6 years ago, and it still persists after all those years and quite a bit BIOS versions since then.

Which will surely make me not to choose the HP as my next laptop, even if the HP 15 laptop is an entry-level model, but if it supports PCIe 4.0 it should function as advertised, not to make the users beg for the features that should be available and functioning from the day one.