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Thread: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz




  1. #31
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    :-) lots of fun in did profJim.

    From another post above , it was discussed the subject about the mysterious markings in BIOS at the 4.0 multiplier .

    I had test, both settings with out to boot on them, visually there is no change,
    the FSB selection as 1066 stays .

    By using the DDR3 instead of the DDRII , those markings change again.
    And actually, just the marking (+) become (#).

    And I think ...that with the DDR3 the 3.33 multiplier just showed up !!

    Attachment 3046


    .
    EP35C-DS3R F4 | Q6600 | ProlimaTech Armageddon
    HYPER-X KHX1600C8D3T1K2 /4GX
    PC3-12800 1600MHz (1066 CL 6-6-6-21)
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  2. #32
    Chike is offline Senior Member
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    I wonder if there are ny multipliers for the D(400) strap at all for this motherboard.
    Anyway if there's only one it's for the C(200) strap for sure, but it may still work.

  3. #33
    Chike is offline Senior Member
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    When SPD is selected there should be a legend on the right side for the different signs(+#~).

  4. #34
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    Quote Originally Posted by Chike View Post
    I wonder if there are ny multipliers for the D(400) strap at all for this motherboard.
    Anyway if there's only one it's for the C(200) strap for sure, but it may still work.
    All that I can say , are that I did tried to to boot at 1600FSB and failed ..
    The 1535 are the wall for it.

    About the 3.33 multiplier at the current 1520FSB goes like 1520/3,33= 456 FSB
    456 X 6 = 2736
    456 x 7 = 3192
    456 x 8 = 3648
    EP35C-DS3R F4 | Q6600 | ProlimaTech Armageddon
    HYPER-X KHX1600C8D3T1K2 /4GX
    PC3-12800 1600MHz (1066 CL 6-6-6-21)
    ATI HD 5770 Vapor - X| X-Fi music |RAID-1 WD Raptors
    HIPER HPU-4M780-PE

    XP PRO 32bit

  5. #35
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    Each of the memory straps, A(266), B(333), C(200), and D(400) have different internal settings.
    Using any of the 4.00 setting as an example, the memory speeds will be the same, but using a lower strap setting will apply tighter "internal" settings that will either give you better memory performance that is stable, or tighter settings might make the system unstable or not able to boot.

    Looking at my memory strap chart, 4.00 could be available for the A, B, or C straps.
    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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    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
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  6. #36
    Chike is offline Senior Member
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    My lower end P35 ASUS P5K SE which has no VTT voltage control booted happily at 450MHz(1800 rated) FSB with the E7500, I see no reason this noard would not.
    Maybe we are talking about different things? 1520 is your ram frequency (DDR rate).

  7. #37
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    All that I can say , are that I did tried to to boot at 1600FSB and failed ..
    The 1535 are the wall for it.
    Please clarify, were you setting CPU Frequency = 400MHz and using the 4.00 memory multiplier for 1600MHz memory speeds.

    From what you've posted, it looks like you can't use any 4.00 memory multiplier CPU Frequency higher than 380MHz.

    Don't confuse rated FSB with FSB:DRAM as shown in Cpu-Z. FSB:DRAM a ratio.
    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. #38
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    just on the terminology

    the 456 is a reference speed

    the fsb multiplier is allways x 4, you cant adjust it at least not on my board :)

    456 cpu reference = 456x4=1824mhz fsb speed

    456 x whatever cpu multiplier = the cpu speed.

    456 x whatever memory multiplier you are using = memory speed.

    Your setup sounds great as it is

    Were not trying to sound pompous or anything but why not post up your full bios settings and some of the posters might have some suggestions to try . They might not work but it wouldnt be anything too extreme.

    Its possible the board may be good for 1600 mhz + fsb speed that would be 400mhz ref x 4.or 420x4 for 1680 fsb etc.
    However if your memory multiplier is trying to run the memory at the same speed 1600mhz it may not work so dropping the memory multiplier may allow a fsb speed of 1600mhz with the memory running below 1600 mhz.

    Yes your 1520 memory speed is the same as a 1520 fsb speed because you are using a x4 multiplier on the memory at 380 reference but using a 456 reference will give you 1824mhz fsb.

    Maybe u already know all this it just doesnt seem so clear.
    Last edited by kick; 11-26-2010 at 05:37 AM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

  9. #39
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    Tried to boot at 456 X 6 = 2736 3.33=1520
    It was not possible ..

    But I did another test , that verify s the information given by profJim,
    about memory timing change with 4.0 # or 4.0~
    I tested both settings , Oced to 3.033

    And the 4.0~ boosted the bandwidth by a little and lowered the memory ns timing .

    Example :
    4.0 # VS 4.0~ VS Default

    Read: 8370...8620.... 9300
    Write: 6883...6885 ... 6886
    Copy: 7397...7498... 7586
    ns : 63ns...60ns ... 55,2 ns


    .
    Last edited by Kiriakos; 12-07-2010 at 06:51 AM.
    EP35C-DS3R F4 | Q6600 | ProlimaTech Armageddon
    HYPER-X KHX1600C8D3T1K2 /4GX
    PC3-12800 1600MHz (1066 CL 6-6-6-21)
    ATI HD 5770 Vapor - X| X-Fi music |RAID-1 WD Raptors
    HIPER HPU-4M780-PE

    XP PRO 32bit

  10. #40
    kick's Avatar
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    Default Re: GA-EP35C-DS3R & (2x2gb) pc12800 DDR3 1600Mhz

    Ok but you do know 456 is 1824fsb yeh?
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

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