Hello!

This is my first post. Thank you Fernando for this very helpful forum.
I'm trying to enable AHCI on my Windows 7 64bits system.

My configuration :
- Asus P5K with a P5KR modded bios (build 0703) : with this bios I have AHCI option available in both sata general configuration (first page) and Jmicron controller configuration (by default, AHCI option is not available on this ICH9 motherboard).
- 1 SSD Crucial M500 plugged on the JMicron controller: for my system
- 2 hdd (samsung spinpoint t166 320Go and samsung spinpoint F1640 Go) plugged on sata connectors 3 and 4 : datas hdd
- 1 dvd rom on sata port 1

In the bios, with ide or ahci mode, all the devices are recognized.
My system has been setup in ide mode with Windows 7 64 bits. All the updates have been done.

I've not been able to enable ahci for now. I've tried differents tuto like this one with differents register modifications (generally iostorV, msahci, pciide start value modified from 3 to 0) but when I change theses values, reboot and enable ahci only for JMicron or for JMicron controller and sata ports, the system is starting...stop on windows logo and reboot (no message, no BSOD)

I've also tried :
- to start a new installation and with the custom method choosing your modded ahci driver (v11.2.0.1006) but as it is not signed, I can't load it.
- double click on the iaahci.inf file to install the driver by I've an error message (installation method not supported)

So, I'm wondering what's the best way to enable ahci ?
Do I have to start a new installation with ahci mode enabled?
Or do I have to install your modded ich9 driver ? but in this case, how can I install it ?
Do I need to modify register keys before reboot ?


thank you for your help

Thank you for your quick response!

1) No
2) to active ahci option in the bios (according to that post )
3) because of the tuto above

Ok but according to the Asus P5K manual guide, I should be able to use the JMicron controller in ahci mode .

Normally, if I follow the tuto, step 10 and 11, the hard drive is connected to the JMicron and when windows comes up, it asks for drivers. In my case, Windows has never passed the logo after changing sata mode to ahci in bios.

Considering the situation, what would you advise me ?
Reinstalling the system in ahci mode and with the ssd connected to the intel sata ports ?
Other thing ?

When the system is already installed, do I have to modify registry before enabling ahci in bios?

Ok thank you :-)
I'll try this tomorrow and give you a feedback.

Is this a good thing to update the ich9 driver (if the installation succeeds) with the 11.2.0.1006 ?

Hi!

My system is now installed with the right Intel drivers (yours v11.2.0.1006). Everything works fine.
Thank you for your help Fernando :)

Here is the procedure I've followed :
- connect the ssd to the second Intel Sata port (first is for my DVD-Rom)
- start the PC and enable ahci in bios
- start windows 7 64bits installation
- at the first boot after complete installation, I've launched the intel installation drivers from asus (maybe this step is not necessary)
- after reboot, I've updated the intel ahci drivers with yours

As it's my first install with ssd, next step is to check if everything is ok (specially the trim function).

The only strange thing is at the boot just after the JMicron display message (and before the black screen with the windows logo), I've a cursor on the top left corner of the screen (the screen is black with this cursor)...I don't know what the pc is doing. It only appears when I enable ahci in bios during 10s.

If someone has an idea...
Maybe it's a POST operation that is long....

Zitat von Fernando im Beitrag #10

---

Zitat von neyro im Beitrag #9

---

- connect the ssd to the second Intel Sata port (first is for my DVD-Rom)

---

Why that?

---

Ok.
So, now that I've done a clean install, can I change the sata port of the ssd without inpact on Windows installation ?
edit: sorry, a long time ago that I've not touch to my hardware configuration. I'm a little rusty

I've changed the sata port for the ssd (now 1). Everything is ok.

Thank you for your help