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Thread: initial setup EP45-UD3L




  1. #21
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    Default Re: initial setup EP45-UD3L

    I found the below link that may help others in my plight.

    Integration of Intel's SATA AHCI and RAID drivers



    If I enable AHCI how much more performance will I see?

  2. #22
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  3. #23
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    Default Re: initial setup EP45-UD3L

    That method is the best way to go, which is why I recommended slip streaming the drivers in my first post.

    It depends on the drives and the usage patterns as to the benefits of AHCI. AHCI enables NCQ (Native command queueing). On small size random reads and writes as well as a lot of concurrent IO, common when starting Windows and when using the HDD as a corporate server for data bases (MySQL etc) it can make a big difference, combined with using Native mode.

    Where it makes an all round difference is with SSD's. I see a 10% performance increase across the board going from IDE to AHCI on my X25-M. on that drive and other SSD's with huge throughput it's well worth it.

    You can slipstream the drivers if you wish and save the disc for the next time you install. I wouldn'tbother with a complete re-install though, it's a bit of a waste of time.

    Using this method, you can safely swap: HOW TO switch from IDE to AHCI mode without having to reinstall Win XP (GUIDE)

    As outlined, simply extract the driver or use the pre extracted version contained in the 32bit Intel boot floppy maker. Copy the iaStor.sys file to the system32/drivers folder, use the reg file for your specific ICH version, then reboot and install the official Matrix Storage Manager to make sure all reg entries needed are created by the propper means. Nice and easy, and I can verify that it works 100%.
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  4. #24
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    Default Re: initial setup EP45-UD3L

    If you change all of these to Zero (0) you can switch between IDE/AHCI/RAID anytime you want, just be sure you have the RAID Driver installed first before switching to RAID for the first time.

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Msahci\Start
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Pciide\Start
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\servic es\iaStorV

    And of course the BIOS setting and boot order may need changed depending on your choice that day

  5. #25
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    Default Re: initial setup EP45-UD3L

    Quote Originally Posted by Lsdmeasap View Post
    If you change all of these to Zero (0) you can switch between IDE/AHCI/RAID anytime you want, just be sure you have the RAID Driver installed first before switching to RAID for the first time.

    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Msahci\Start
    HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Pciide\Start
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\servic es\iaStorV

    And of course the BIOS setting and boot order may need changed depending on your choice that day
    I could be wrong but I'm pretty sure this is only for Vista and Windows 7. XP requites a little more persuasion.
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  6. #26
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    Default Re: initial setup EP45-UD3L

    Yes, XP may require more persuasion! I just posted that for you actually, in case you wanted to copy it down for later reference.

    I guess I did not even think about the OS, and I do believe you are Correct but I don't have the time right yet to test. Likely it is true though, since XP is so old

  7. #27
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    Default Re: initial setup EP45-UD3L

    I restored my XP image earlier and can confirm that (on my version at least) those registry entries aren't present unfortunately. They must be created by adding the reg file in the guide I likned to as well as having the actual file in system32/drivers that they reference.

    That registry tweak is definitely handy for Vista and Windows 7 though.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  8. #28
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    Default Re: initial setup EP45-UD3L

    Cool to know, so if you do add those to the registry I posted, does it allow you to switch as easily in XP?

  9. #29
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    Default Re: initial setup EP45-UD3L

    Not 100% sure. All I know is that those entries are present, but only after applying the reg tweak I linked to and also extracting the storage .sys file.

    After applying this tweak you may very well be able to change on the fly.

    It's a simple task for me to re-image to XP, so I'll try it later on and report back.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

  10. #30
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    Default Re: initial setup EP45-UD3L

    Ahh ok, well let me know if it works on XP as well so I will know.

    Storage.sys, hmm if you don't mind also test first without this file. I know it is not needed for Vista/Windows 7 so it must already be included or is installed with RAID/AHCI Drivers.

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