Yeah, that makes sense if others are using a different SSD and you want to get the most out of your SSD go into bios change from Raid to ACHI reboot then go into F12 and reset pc saving all your files first to go back the way simply reverse the steps. 

This knocks off the raid in favor of a single SSD solution mesh on youtube -changing SSD in 5521 explains the steps for a new install if you are thinking about upgrading 

There seems to now be a revision 2 of this laptop since new.

1/ full 140w 3060 the launch only had 115w

2/ the mobo is much cooler no matter what you try the max sustained CPU temp only reaches 91 c.

3/ power socket mobo inlet now has a click to it early versions did not have and now stays in place

4/ trackpad quality much improved.

fantastic 12700h performance, brilliant 240hz screen,  3060 scores 22.000 on performance 10.2 which beats an average score from a 3080ti.

It is also necessary if your system has Optane Memory installed.

The latest testing I have done, which was a couple of years ago, showed the Intel SATA/PCIe Premium driver to be about as fast as a Samsung driver in NVMe mode.

Hi, I knew that but that is not an option on this generation of G15 as the motherboard has no specs for it as far as I am aware at this time.

That word "RAID" in bios is not actually raid.

I have seen mass confusion because of Dell choosing the sata mode to named "RAID" 

This particular sata mode works better with dell IRST drivers. 

In My Lenovo they call it "AHCI" and "NVME"  and that's the way Dell should do it too

hi, I get that as well but whatever they are doing has 2 clear effects,

1/ it kills gen4 SSD performance by at least 25%.

2/ users that get advised by dell to reinstall windows that do not use the bios in which to do it won't be able to use a USB method as this Raid can't see it but dell tells no one about that causing even more confusion.

USB method works with an additional step: You have to download IRST drivers extract it in same USB where windows media is, at the time of disk selection where no disks are showing , Choose Load drivers.

it kills gen4 SSD performance by at least 25%.  "I have no seen this behaviour on my Alienware running factory image" Did you mean after choosing AHCI the performance drops? Yes it does, its been doing it for years.

Hi, I am speaking about if end users have to take an image from the dell cloud which is a bog standard MS USA version of windows 22H.

I will also state that when Dell tells its users to download from the cloud from the bios method they don't tell anyone that the Dell power plan can not then be accessed and not even from the support pages in fact the last product support page that has its original power plan driver is the G15- 5510.

I have asked Dell tech many times why it is NOT on the support pages, and their answer is we don't need it as all we need is the Intel Dynamic Tuning Driver.

I have tested both the stock Dell image and the cloud image and there is most definitely a huge impact on the performance between the 2 on the exact same model with the same components which must be down to the missing power plan so it is needed in the latest G15 support pages and drivers.

Intel RST provides enhanced performance and reliability than AHCI with Windows drivers as of Intel's Statement . As Dell is more obedient to intel they make their systems like that 

Intel RST drivers on the intel download page state it is not compatible with windows 11 or this dell image.