@Fernando
This number was limited due to PCI Standard
New PCH MB should be PCI 3.3 Or higher it has more potential to handle large request for more performance(CHIPSET and SATA Controller) can handle more PCI 3.0 Standard but old platform doesn't So it need to be careful this number not too high or low.base on your motherboard
More imformations
https://docs.microsoft.com/en-us/windows...in-the-registry\

Also when you turn on that along with MSI Mode.it will enable the devices base PCI interrupted which belongs to the devices.
What it could happen will be,your pc performance might increase or not(depends on different situation),your PC should get lower DPC when MSI/MSI-X mode on,
because the devices not share same IRQ for other devices(which should avoid on any system PCI-E bus devices.But why the limits has been set to 1 for older chipset,that would be their standard
because older chipset(All ICH NOT PCH) not have implement PCI-E 3.0 Standard,it would be stay on PCI 2.2 Which maximum interrupted was from 1-16(depends on chipset).Interrupted was How the devices on PCI-E Bus communicate and responds for their Memory resource and MessageNumberLimit was pre-allocated the MSIs resource for the PCI-Devices.base on this reason.the old ICH SATA/RAID control cannot handle more interrupted than 16.
it cause the BSOD when older chipset install 14.x or high IntelRST since the INF files default as 80 which Out of the ICH limitation..
Start from RST v14.Intel has increase this limitation as 80 which the PCH chipset can handle well enough but not applied to ICH chipset.
And also Intel didn't want to support ICH chipset after last 13 version release.If anyone want to try the latest Driver on older ICH chipset,they must change the MessageNumberLimit not higher than 16
I would recommend to 4/8 base on your usage and testing environments.

One more reference could read here
https://forums.guru3d.com/threads/window...errupts.378044/

I bought a Lenovo 110S, It's a Celeron N3160, IDK what chipset uses. Win 10 x64 has no other than MS drivers for AHCI controller. What modded driver do you suggest? Thanks!

Many thanks, my fault, I forget it... It's 8086 22A3.

Hi Fernando,
I am having trouble recognizing my SSD in Win7 Ultimate x64:
Tried all your modded versions but no luck so far.
----
PCI\VEN_8086&DEV_9D03&SUBSYS_06B21028&REV_21
PCI\VEN_8086&DEV_9D03&SUBSYS_06B21028
PCI\VEN_8086&DEV_9D03&CC_010601
PCI\VEN_8086&DEV_9D03&CC_0106
----
Processor: Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz, 2501 Mhz, 2 Core(s), 4 Logical Processor(s)

The SSD is an ADATA SU800 that I want to install in a laptop DELL Inspiron 5559.

Please let me know what alternatives I have.
Thanks in advance

Hi and thanks for the warm welcome @Fernando,
Tried the latest ones that are in page 1 (Universal 64bit Intel RST AHCI+RAID driver v11.2.0.1006 mod+signed by Fernando, Universal 64bit Intel RSTe AHCI+RAID drivers v11.7.4.1001 mod+signed by Fernando to Universal 64bit Intel RSTe AHCI+RAID drivers v15.9.4.1041 mod+signed by Fernando and also Universal 64bit Intel MSM AHCI+RAID drivers v8.9.8.1005 mod+signed by Fernando).

I am trying to install these drivers from scratch (empty SSD, installing Win7 from bootable USB). During the windows installation there is a configuration part that you select which drive or partition you want to install the O.S.
So I only have one choice in here: Clicking "Browse" and then I look for those modded drives but none allows me to see my SSD Drive.

Quick note: if I open Command Prompt during setup (Shift+F10) and execute diskpart, I can see the disk!

I have tried formating, creating volumnes, cleaning only, changing the "partition's type": MBR, GPT, different USB's, different ports on the laptop, switching between UEFI and Legacy, tweaking BIOS and still nothing.
The only combination that I am able to install Win7 is by installing Win10 (which recognizes my SSD) and later on I do a downgrade to Win7.
The problem of doing this is that files are getting corrupted and Win7 is not working as it should (the annoying blue screen and not able to boot from safe mode in one ocassion).
I took a few photos that can be seen here: google drive shared folder

Hope you can point me in the right direction
Thanks,

EDIT by Fernando: Unneeded fully quoted post removed (to save space)

@Fernando

Here are the latest and probably best "classical" Intel RST AHCI/RAID drivers:

Modded+signed Intel RST drivers v11.2.0.1006 (dated 05/30/2012, re-modded and freshly signed at 01/03/2019):

>Universal 32bit Intel RST AHCI+RAID driver v11.2.0.1006 mod+signed by me< (>MIRROR<)
>Universal 64bit Intel RST AHCI+RAID driver v11.2.0.1006 mod+signed by me< (>MIRROR<)

>Universal Intel RST Drivers+Software Set v11.2.0.1006 mod+signed by me<(>MIRROR<)

all the 3 rar files downloaded from above links are corrupted,could not extract them, i actually want to install XP on Intel Skylake core i7 6600U ... kindly pls re upload or mail me (suhasm@bel.co.in) a 32bit ahci modded driver for skylake with sata controller device id = 9D03

BIG THANKS IN ADVANCE

Hello @Fernando ,
do you think it would be a good idea to update the v16 AHCI modded drivers to the new branch v17? Probably it won't be necessary for the older chipsets, I guess that's why nobody has requested it up to date.

Thanks & regards

can't wait to see you mod a V17 RST Driver