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Thread: GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs




  1. #1
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    Default GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs

    I'm hoping someone can help cause I've been trying to solve this for a few days now and my head is spinning.

    I bought 3 x 3TB WD RED drives to put in a RAID 5 array on my GA-EP45-DS4P mobo and when I CTRL-I to setup the raid, the intel raid controller sees them as 745GB and if I ignore this and continue anyway, it tells me the raid 5 drive capacity will be 1490GB. I have not continued past this point in case it somehow damages the drives. I have flashed to the latest F9b but this did not update the AHCI firmware. It's still 1.07. I have Intel RST 11.​2.​0.​1006 driver installed which I believe is the latest.

    Windows 7 sees the disks properly but if I'm not mistaken the best way to setup a raid array is directly through the raid chip.

    Is there anything I can do to get this raid array to work other than buy a new mobo??

    Any help is appreciated.

    Cheers

  2. #2
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    Default Re: GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs

    You might contact gigabyte support to see if your set up supports drives larger than 1 TB. I bet it doesn't. Or try through IRST ( Intel Rapid Storage Technology) in windows.
    Last edited by Conners; 09-18-2012 at 05:03 AM.

  3. #3
    flyfisher is offline Member
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    Default Re: GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs

    Not sure, but don't you need UEFI BIOS to support drives greater than 2.2 TB?

  4. #4
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs

    +1^^
    I think that your motherboard and bios must provide GPT support for drives larger than 2TB.
    I don't know if there are add-in raid controller cards that will let you use 3TB drives with older motherboards that don't support GPT partitioning.
    A web search using mbr vs gpt should provide more information.

    Both of my five year old win7 x64 systems support 2TB hard drives without any issues or problems.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
    .


  5. #5
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    Default Re: GA-EP45-DS4P AHCI controller won't properly raid my new WD RED 3TB HDDs

    You need UEFI BIOS for 2.2TB or grater hdd, but i don't think so Gigabyte will make UEFI BIOS for such old mobo.

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