Hidden ADVANCED MODE IN BIOS (UEFI)

[VasuOberoi]

HP model no 15da1041tu,BIOS VERSIOn INYSDE F.35 ,motherboard no 8532.I want to know how to unlock advanced mode in bios its hidden in my bios.REASON :

MY SAMSUNG 970 evo plus NVME PCIE 3.0 x4 is working in NVME PCIE 3.0 x2 interface 

so i want to change PCIE m.2  configuration from x2 to x4 to increase bandwidth upto 32 gb/s.PLEASE REPLY

[Huffer]

There is no hidden advanced mode and no setting that will let you switch PCIe mode. 

[Paul_Tikkanen]

Hi, @VasuOberoi 

Maybe this related Dell notebook article will be of help to you...

Solved: XPS 9560 NVMe drive only running with two lanes of PCIe - Dell Community

I may be wrong, but it is my understanding that if a M.2 slot supports both SATA and NVMe drives as in the 15-da1xxx model series, the NVMe drive transfer speed is slower than in a M.2 slot that exclusively supports NVMe drives.

[VasuOberoi]

Thanks for article link

NOW IT SAYS THE FIX IS TO REMOVE SSD AND REINSERT it in M.2 slot and after this change power mode and sleep settings then it should work fineat full speed (32 gb bandwidth).I WILL definitely try this and see if it works for me.BUT I WANT TO ASK a question.PLEASE REPLY

i have already installed windows on my ssd .AFTER I have  remove ssd and reinserted it.DO I NEED TO REINSTALL windows or there will be any data loss??.

[Paul_Tikkanen · Accepted solution]

You're very welcome.

You will not need to reinstall Windows. 

There should be no data loss since you will be doing this with the power and battery removed like when you originally installed it.