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[HOWTO] Boot Macs with Intel Chipset in AHCI Win7 Vista XP Linux

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Gav Mack

Gav Mack

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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 :D



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Gav Mack

Gav Mack

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As a footnote to my MBP 2011 AHCI mod, I did a bit of testing with the RST driver.

Using the newest bootcamp 5.1 software Intel RST drivers 11.2 and below the windows bootcamp control panel is still broken with the usual startup disk error, however if your chipset supports 11.7 and above hey presto the windows control panel works.

I know that means the panel is still broken for Mac Pro 3,1 users as is the newest driver supported, though can't confirm which is the newest on the 4/5,1 towers, until I get my 5,1 my clients for all are on the 1008 driver which doesn't suffer from the 3tb formatting bug and don't think would appreciate me asking to test on cheesegraters doing constant work.

The RST driver sets are here:


Update via Device manager, update driver, choose the path of the extracted driver. If supported it will update. The driver only is fine, the driver plus RST app requires .net, is slow to start and a waste of resources on startup. You'll need a 2nd restart after it loads the new driver for your boot drive.



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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 

Edited by fantomas1, 08 June 2014 - 02:00 PM.



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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.

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