Found a working 2011 patchcode here:
Worked on my 17 inch late 2011 perfectly. Also for the inexperienced pretty good instructions I'd say.
It's on the forum now where it belongs
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Hi, i'm Italian, sorry for my english.
I have a 27" iMac 10,1 late 2009. I have installed a samsung 840 evo 250 GB instead superdrive.
I have 1TB mac original 7200 rpm hard drive and the sad instead superdrive. I have 2 partitions in SSD one with mavericks and the other with windows 8.1.
Can i enable AHCI mode? What is the correct procedure? Exist a program? Thanks
i added a Samsung 840 EVO 250GB SSD to my Mac Mini mid 2011 and Windows 8.1 Pro.
Got it working with the original patchedcode.bin and the following steps:
Process I used:
1. Checked the registry that
HKLM/System/Current Control Set/Services/storahci -> Start = 0
HKLM/System/Current Control Set/Services/iaStorV -> Start = 0
Also in both keys /StartOverride -> 0 = 0
3. Reboot into the OS X setup disk, open the Terminal utility
4. unmount all volumes on my SSD
"diskutil umount /dev/disk0"
5. Backed up old MBR
"dd if=/dev/disk0 of=backup.bin bs=512 count=1"
5. Overwrite the MBR with
"dd if=patchedcode.bin of=/dev/disk0 bs=440 count=1"
Also i did not have to install any SATA drivers.
Just wanted to share this because the first post mentioned that it would not work with the aluminium minis.
EDIT: Using the Intel RST driver nearly doubled the IOPS.
EDIT: Sleep doesn't work, second drive (HDD for me) works.
To all of you in that forum:
I like to say thank you!!
I have a Mac Pro 3.1 (early 2008) with a Samsung SSD 840 EVO in two boot partitions: one for OS Mountain Lion, one for Windows 7 Pro.
Your AHCI enabler worked perfectly and Win 7 bootcamp is running better and faster than before!
Hello! I need a little help here. I have a Macbook Pro 5,1 mid 2009, with the nVidia MCP79 chipset and i would like to enable the AHCI support on it, but im not really sure the steps i should follow in order to get it enabled. Can some help me making a step by step instructions on how to do it? I would really appreciate it.
I have read a lot of stuff and most of this thread, but im kind of confused. Saw the info on the first post about making it work on MCP79 chipset, but im not really sure what to do with it.
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