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In Reply to: RE: IDE to AHCI with minlogon posted by Bibo01 on October 24, 2010 at 10:19:42
After reversing minlogon, I managed to switch from IDE to AHCI mode on the new Gigabyte GA-H55M-UD2H platform. It was not as simple as I thought, but it is worth it because it makes access to a large Music Library (all its CUE files) a lot faster. On my 2000 CDs library it takes about a minute in AHCI mode, compared to over 5 min in IDE mode.
This is how to make the switch --
After looking on many forums and many BSOD, I found the solution at this link: http://www.neowin.net/forum/topic/457699-enable-ahci-on-intel-chipsets/page15588980114.
There is an AHCI WINDOWS XP PATCH to download. It is a few years old, but with a few changes it works.
Together with an old version of Intel Matrix Storage Manager, in Prepare directory there is a little "INSTALL.CMD" program with the following string:
rundll32.exe setupapi.dll,InstallHinfSection DefaultInstall 132 %~dp0imsm_pre.inf
It refers to "imsm_pre.inf" which one has to "mod" with the right Southbridge code. The new Intel H55 is not part of its list, but from the up-to-date driver I discovered that it is "3B22"
1) Make sure AHCI is not enabled in your BIOS.
2) Open \\PREPARE\IMSM_PRE.inf in Notepad.
3) Replace any instance of XXXX with "3B22".
4) Save the file and close Notepad.
5) Run INSTALL.CMD in PREPARE directory.
6) Exit Windows and reboot.
7) Enable AHCI in your BIOS and save.
8) Start Windows XP, The Found New Hardware wizard will start automatically.
9) Point to directory on your HD where you have previously d/l and unzipped the latest version of "intel_sata_irst_32" driver from Gigabyte site.
That's it! Enjoy.
Follow Ups:
Thanks! It works. But I have not noticed appreciable change of scan rate of library at start cMP while. I will check still.
BTW AHCI_WINDOWS_XP_PATCH.zip here http://rs180l33.rapidshare.com/#!download|180|68377915|AHCI_WINDOWS_XP_PATCH.zip|21447 and Intel SATA Preinstall driver (For AHCI Mode) here http://download.gigabyte.us/FileList/Driver/motherboard_driver_intel_sata_irst_32.exe
Thanks for trying.Actually, I discovered that the large difference between IDE and AHCI depends on the bios setting Integrated Peripherals/SATA Port0-3 Native Mode which it must be "Enabled".
Edits: 10/26/10 10/26/10
I have 286 albums with flac tracks on the 2.5" hdd (Hitachi 5K500.B) and scan time of music library during cMP start up is 25 sec. in IDE mode and AHCI mode with "Integrated Peripherals/SATA Port0-3 Native Mode" Enabled and Disabled - equally! The setting "Integrated Peripherals/SATA Port0-3 Native Mode" into "Enabled" in IDE mode lead to next:
...and into "Disabled":
...and "Enabled" or "Disabled" SATA Port0-3 Native Mode in AHCI mode lead to next:
From system board's manual:
About AHCI advantages (translation from russian):
"AHCI mode provides the greatest gain (some times) in cases when some applications simultaneously work with a hard disk. Increase by that more than is more distance between areas with which applications simultaneously work. By operation mainly one application with a hard disk the effect from operation NCQ will be minimum." (http://acerfans.ru/faq/358-tekhnologija-ncq.-stoit-li-vkljuchat-ahci.html)Thus it is recommended to leave following settings:
Edits: 10/26/10
Firstly, let me say that in terms of speed I have to revise my initial position. The scan time of my 2000 CDs music library during cMP start up is ~60 sec. in IDE mode and AHCI mode with "Integrated Peripherals/SATA Port0-3 Native Mode" Enabled and Disabled - equally! The initial difference that I reported was probably due to HD coming out of sleep mode.
Secondly, IRQs in IDE mode and AHCI modes are different from yours.
IDE with "Integrated Peripherals/SATA Port0-3 Native Mode" Disabled:
IDE with "Integrated Peripherals/SATA Port0-3 Native Mode" Enabled:
SATA with "Integrated Peripherals/SATA Port0-3 Native Mode" either Disabled or Enabled:
Therefore, given that I do not have IRQs conflicts like you (my non-onboard USB sockets are just for mouse/keyboard + seldom used service), my personal recommendation is to leave in SATA mode Enabled. :-)
OK! Your recommendation is for your settings, and my recommendation is for my settings (disable all ide channels except IDE Channel 0 Master, disable all usb ports except two (one to leave for the wireless mouse, another to leave for connection external hdd, flash usb etc. - F_USB2 header on the system board) and disable "2 port SATA storage controller" ) :)
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