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Thread: EP45-UD3P enable ACHI after Win7 install




  1. #21
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    It still could be bios issue with that particular ssd? Would be worth emailing gigabyte stating make/model ssd and mb and ask if they could supply a beta BIOS for you to test,it should work in ahci with the reg tweak without issue,you get far better read/write figures with ssd in ahci mode too
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  2. #22
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Quote Originally Posted by wazza300 View Post
    It still could be bios issue with that particular ssd? Would be worth emailing gigabyte stating make/model ssd and mb and ask if they could supply a beta BIOS for you to test,it should work in ahci with the reg tweak without issue,you get far better read/write figures with ssd in ahci mode too
    Thanks for the suggestion and the help. F11d didn't even work. This is the ssd (64GB) that I got:

    Newegg.com - Patriot Torqx 2 PT264GS25SSDR 2.5&#34; 64GB SATA II Internal Solid State Drive &#40;SSD&#41;

    and a good review:

    Patriot Torqx 2 Phison Solid State Drive | Patriot Torqx 2,SSD,Phison PS3105-S5,Solid State Drive,PT2128GS25SSDR,Benchmarks,Performance,Tests, Olin Coles,128GB Patriot Torqx 2 SSD PT2128GS25SSDR Phison PS3105-S5 Solid State Drive Benchmark Performance
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  3. #23
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    GA-Z97X-UD5H rev 1.0 F9f
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  4. #24
    rbmorse is offline Junior Member
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Have you tried my suggestion to repartition the drive? If there is no/munged boot sector the BIOS won't recognize it as a drive.
    EP45-UD3P 1.1
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  5. #25
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    I posted a reply for you on the Tech Support Thread, but I hadn't read all of this thread yet
    Welcome to GIGABYTE Technical Support!

    Do you have the OS installed already still, or not? If you do have windows installed, then my reply on the above thread should sort this out for you. If you are having issues trying to install windows in AHCI mode then please see my comments in the other thread for settings. Set the BIOS as shown, start the install and format the drive and then install. You wont need to load Intel drivers for the install, or for the drive to show up, so if you are seeing no drive showing then you may need to fully format the drive in another PC before you do the install. If you are having that issue then I suggest putting the SSD into another system, and then delete any and all partitions on the drive using windows Disk Management, so it's a raw drive with no partitions, then install on that and windows will create and format new partitions for you once the install starts.

  6. #26
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Also, have you ever used this drive in AHCI mode? Can you test it in AHCI mode in another PC? How old is it?

    I ask because I've seen more than a handful of SSD's work fine in IDE mode but not work at all in AHCI mode, IE faulty SSD and the users RMA'd the drives and the new ones work fine.

    So it could be a faulty drive, if it fails the same way in another board with AHCI working and already set with other drives (So you know it's set right), then it could be a messed up SSD

  7. #27
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    I just wanted to post this if it would help anyone else.
    After 2 weeks I am finally running in ACHI mode. Some performance increase but nothing to write home about.
    Anyway I found this thread:

    Question on SATA ... IDE emulation mode vs. AHCI mode

    And this worked for me so if this helps anyone else it was worth the time and effort, and lots more people seem to have had the same issue.

    On Nov 9, 6:57 pm, Barry Watzman <WatzmanNOS...@neo.rr.com> wrote:
    > Ok, I have a Gigabyte GA-ex58-UDR3 motherboard, but actually I think
    > that this question is pretty generic and would apply to almost any
    > modern motherboard.
    >
    > I have a SATA hard drive, connected to a SATA port of the Intel ICH10R
    > chipset [actually, I have two SATA hard drives, and two SATA optical
    > drives]. The motherboard has a "Gigabyte" IDE/SATA controller on it to
    > provide an IDE port (and additional SATA ports) but since I have no ide
    > devices, that device is disabled entirely in the BIOS.
    >
    > Here is the question: The BIOS has two settings for the modes of the
    > SATA ports (in the Intel ICH10R):
    >
    > SATA RAID/AHCI Mode (choices are Disabled/Raid/AHCI; set to disabled)
    > SATA Port 0-3 Native Mode (choice are native/legacy, set to native)
    >
    > And the system works fine. But it's using "IDE Emulation" to access the
    > hard drive.
    >
    > So I set the SATA RAID/AHIC Mode to AHCI .... and the system won't boot.
    > It crashes during bootup, which causes a loop of continuous resets.
    >
    > FWIW, I was pretty sure (certain, really) that when I installed this
    > system (Windows XP SP3, by the way), I used an F6 floppy driver to setup
    > the system.
    >
    > So the question: I'd really like the SATA ports operating in AHCI mode.
    > How do I get there WITHOUT doing a total reinstall of Windows? I
    > thought I had the necessary SATA driver installed (via the F6 driver I
    > installed when I first configured the system), but apparently not. So,
    > again: What do I do to convert the system from accessing the SATA hard
    > drives via IDE emulation to accessing then in native SATA AHCI mode,
    > again, without having to reinstall Windows.
    >
    > ???

    Barry,

    By now you may have solved this problem. FWIW, if anyone else follows
    this thread...

    My experience is with an ep45-ud3r.
    You started with the Ich10r running in IDE mode. Once you booted into
    Win, any attempt to install the AHCI/Raid drivers from the included
    DVD will
    fail since the device is off in the Bios.

    The driver you want is the Intel Matrix Storage Manager. To turn on
    the Raid/AHCI device on Ich10r and not crash,
    the other Mass Storage device can be used as a temporary crutch while
    you install drivers.
    So...
    turn off the machine (complete shutdown) and move the SATA cable for
    your HD over to the GSATA. Boot up, go into the
    Bios, navigate to the Advanced Bios. Turn on the AHCI in Ich10r (near
    top of menu). Then enable the on-board GSATA device (lower in the
    menu), but
    keep it running in IDE mode.

    Now when you startup Win, it will see the new Ich10r device and offer
    to set it up. Grab your DVD or get the latest drivers from the GA
    site.
    Once you install the Mass Storage driver, check inside the Device
    Manager to confirm success.

    Of course, you should now hard shutdown again and reverse your SATA
    cables back to the original configuration.

    To avoid looping restarts and get some feedback on any crashes, before
    you reverse the connections, do
    right click, My Computer->properties->Advanced->startup and shutdown-
    >uncheck restart immediately after a crash.
    Now when a crash occurs with a BSOD, you can see what the msg is and
    if any driver is involved.

    --
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  8. #28
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Nice fix, but it should only be needed for XP since in Windows 7 or Vista you can enable AHCI easy by making a registry change and then reboot and enable AHCI.

    Thanks for posting for others though!

    In Win7 or Vista, all you have to do is change the following in the registry (If using Intel ports). Then reboot and set BIOS to AHCI

    Enable switching between all IDE/AHCI/RAID modes by changing "Start" Values in these keys to 0 (Win 7 / Vista ONLY)
    Code:
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Msahci\Start
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Pciide\Start  
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStorV\Start
    Then you can install Intel storage drivers, until you do that MSAHCI driver will be used. For anyone that's not comfortable editing the registry, Microsoft has a Fit It For me located here
    Error message when you start a Windows 7 or Windows Vista-based computer after you change the SATA mode of the boot drive: "STOP 0x0000007B INACCESSABLE_BOOT_DEVICE"
    Last edited by Lsdmeasap; 01-30-2012 at 01:32 PM.

  9. #29
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Thanks but it wasn't that easy as I did that before my origional post (#1) and all the other ideas in the thread after.
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  10. #30
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    Default Re: EP45-UD3P enable ACHI after Win7 install

    Ahh, maybe you had a strange windows install going on or something? I've done it on 100's of computers manually, and many with the fix as well, and never had any issues.

    And actually, on windows 7 or vista, you can change between IDE and AHCI without doing anything except changing the BIOS as windows switches between IDE and MSAHCI drivers automatically without registry changes which is why you can install AHCI or RAID without loading drivers per-install (Intel ports only).

    I do know I've seen similar reports as your issue with users having issues and or not being able to use the registry edits, and I'm not sure what causes it, but I can tell you it's not the default way Vista/Win7 should act. So thanks for posting your method as well, hopefully it will help others in the future.

    For Google later :) Windows 7 Vista AHCI After Install Registry Edit Fails

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