Missing AHCI driver

[PasqualeDK]

Hallo,

I boot from an UEFI partition on a Samsung SSD EVO 850, 500 GB. When I launch Samsung Magician can I see that AHCI is disabled. I can't find any option in the UEFI setup that enables the AHCI and in Device Manager there is no Sata-AHCI drivers installed. The only drivers installed are Intel Chipset SATA RAID Controller and Microsoft Storage Spaces Controller.

This is the mschine I have bought a a few days ago: HP Laptop 17-by0803no.

I can't believe, that in the year 2018, HP sends machines on the market without AHCI option.

Is there anyone who can help me with that?

Best Regards
Pasquale

[Paul_Tikkanen · Accepted solution]

Hi:

You have already found the answer to your question.

The drive controller is set to RAID in that model series.

Drive controller settings on HP consumer class notebooks cannot be changed.

Maybe some models in that series have hybrid drives (standard drive with SSD cache), and they have to be configured in RAID mode.

In any event, there is absolutely zero issues with the drive controller being set to RAID.

There is full SSD support in RAID, so don't interpret the samsung magician's report as something bad.

W10 will automatically trim the drive, or you can run the defragment and optimize drives app in your windows administrative tools section.  Windows will automatically detect the SSD and TRIM it instead of defragmenting it.

You can see this related discussion regarding other notebooks with RAID setups.  Zero negative impact.

https://h30434.www3.hp.com/t5/Notebooks-Archive-Read-Only/How-to-enable-AHCI-for-HP-ENVY-TouchSmart-...