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Thread: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800MHz?




  1. #1
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    Smile Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800MHz?

    Need help? - I have GA-EP45-DS4 motherboard, How can I set up memory module to operate at 800MHz in BIOS?

    configuration machine....
    GA-EP45-DS4 with latest stabile BIOS F9
    CPU-Intel Core 2 Quad Q6600
    1GB Kingston HiperX(KHX6400D2LL/1G) @800MHz - cl4, 4-4-4-12-2.0v
    1GB Kingston HiperX(KHX6400D2LL/1G) @800MHz - cl4, 4-4-4-12-2.0v
    2GB Kingston HiperX(KHX6400D2LL/1G) @800MHz - cl4, 4-4-4-12-1.95v
    GeForce 9800GT 1GB
    500GB WD 7200 rpm
    win7 x64

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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    For 800MHz memory speeds:
    266 x 3.00A = 800MHz
    333 x 2.40B = 800MHz
    400 x 2.00x = 800MHz where x = B or D
    CHF x SMM = Memory speed (CHF = Cpu Host Frequency and SMM = System Memory Multiplier)

    With 4GB or memory, MCH Core = 1.20 -1.24 will probably be needed.
    Last edited by profJim; 04-12-2011 at 10:52 PM.
    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)
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  3. #3
    Chike is offline Senior Member
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    Aren't they set automatically to 800 by default?
    To have the memory in dual channel mode place the 1GB DIMMs in slots 1 & 2 and the 2GB in slot 3.

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    Chike is offline Senior Member
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    OK I saw in their datasheets they default to 667MHz and probably do not have XMP so have to set SMM 3.00A manually, voltages and timings as spec.

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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    To have the memory in dual channel mode place the 1GB DIMMs in slots 1 & 2 and the 2GB in slot 3.
    For maximum performance, it's best to have matching modules in the same memory channel.
    I would put the 1GB memory modules in slots 1 and 3, and put the single 2GB module in slot 2.
    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
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  6. #6
    Chike is offline Senior Member
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    Nope.
    Desktop Boards &mdash; Single, dual, triple and flex memory modes

    EDIT: that would result in single channel or flex mode.
    Last edited by Chike; 04-13-2011 at 12:18 AM.

  7. #7
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    Quote Originally Posted by Chike View Post
    Nope.
    Desktop Boards &mdash; Single, dual, triple and flex memory modes

    EDIT: that would result in single channel or flex mode.
    Nice link for motherboards manufactured by Intel, but their information might not apply to motherboards made by others.

    I stand by my previous statement, unless Lsdme says that I'm wrong.
    My understanding is that when using three memory modules, flex mode is the best and only option.
    --------------------------
    Need help? - I have GA-EP45-DS4  How can I set up memory module to operate at 800MHz?-gigabyte-dual-channel-memory-configuration-ep45-ds4-png
    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
    .


  8. #8
    Chike is offline Senior Member
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    Thishas nothing to do with Intel boards but the chpset which is the same for all MB manufacturers.I stand by statement uless it is proven otherwise.
    If I am not too lazy I wll later experiment with the 2 1GBPIa and one of the 4GBPK.

  9. #9
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    I'm looking forward to your test results.
    I assume that you'll be doing some basic memory benchmarks with each setup.
    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
    .


  10. #10
    Chike is offline Senior Member
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    Default Re: Need help? - I have GA-EP45-DS4 How can I set up memory module to operate at 800

    Mixing 3 different modules can be a pain, now I know.
    Had to run 1/2GB single channel (one or 2 sticks slots 1 & 2) and setup everything before I add the 2GB.
    The dual channel ran tRD 6, for the flex I had to set 7 or it won't boot.
    I would have tried 1 or 2 more but I have inserted and removed the sticks so many times, and it is not doing them any good.

    1GB in slots 1 & 2, 2GB in slot 3:




    1GB in slots 1 & 3, 2GB in slot 2:


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