Dear abct I am not sure your solution or method suits us, as I have tried injecting another controller's ID but my machine then would not boot! You seem to be using a typical DTGP method for injecting the device-id for ICH8M AHCI controller. Are you sure that you really need to delete those two devices you said? Please always be careful before editing/removing stuff from DSDT...


Dear tea, regarding your post, can we find out if the patched IOAHCIBlockStorage.kext works under ICH7 and IOATAFamily, despite System Profiler not showing the controller itself? I mean, if we use the bin-patched kext, perhaps we do have TRIM working although it's not shown in System Profiler? Any thoughts on that?

Is there a possibility we might need a newly-compiled IOATAFamily kext/binary, to support ICH7 properly?

Thanks.

Thanks for the warning.
It's been a while since I'd removed those two devices and it seems to work fine.
In my case, OS X only uses one SATA device. (Credit to DutchHockeyPro). I haven't got any problem with it including on Lion (A friend tried). I'll tell you another interesting thing. A friend recently sent me his DSDT file and I couldn't find a SATA device in it. Looking at his IOREG dump, SATA device was there. It was recognised as generic. So, OS X in my case detects SATA device even without Device (SATA).

As you said, your case apparently is different.
Thanks,

Hello guys.

I finally managed to mod my bios to gain access to AHCI config options in BIOS. At last was not DSDT related at all, just moded the menus. It took me 3 bricks LOL, but finally is working. Wish you good luck in your way to AHCI enabling.

Nice day.
Camilo.

what bios/hardware are you using?