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Thread: Problems with EP35-DS3L and OCZ memory modules




  1. #1
    Join Date
    Oct 2008
    Location
    Czech Republic
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    Default Problems with EP35-DS3L and OCZ memory modules

    Hi,
    I have some troubles with memory timings.
    I had this GA-P35-DS3L mainboard with C2D E7200 and 21 GB modules OCZ DDR2 PC2-8500 Platinum. Everything was ok on automatic timing settings, but I bought a week ago additional same 21 GB memory set. Now I have problems with stability and computer can't resume from sleep. I tried some custom settings, but still it isn't good.

    Current settings

    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    CPU Host Clock Control_ [Disabled]
    CPU Host Frequency (MHz)__________ [333]
    PCI Express Frequency (Mhz)_______ [Auto]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [Auto]
    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________ 5
    Dram RAS# to CAS# Delay_________ 5
    Dram RAS# Precharge Delay_______5
    Precharge Delay (tRAS)__________ 15
    ACT to ACT Delay (tRRD)_________ 4
    Rank Write to READ Delay________ 11
    Write to Precharge Delay_________ 6
    Refresh to ACT Delay______________ 54
    Read to Precharge Delay__________ 5
    Static tRead Value_______________ 7
    Static tRead Phase Adjust________ Auto

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.4V]
    PCI-E OverVoltage Control_ [+0.1V]
    FSB OverVoltage Control___ [+0.1V]
    (G)MCH OverVoltage Control [+0.3V]
    CPU Voltage Control_______ [Normal]

    On this settings is system more stable, but it can't resume from sleep.

  2. #2
    Join Date
    Sep 2008
    Posts
    80

    Default Re: Problems with EP35-DS3L and OCZ memory modules

    There seems to be actually more of an issue getting these MOBOs to work with 4x1 than with 4x2; I'll try to hunt down what seems to have worked for others - in the meantime, looks like you MCH voltage is high enough; you might try raising your tRFC to 60 or so, bumping up your RAM voltage another tenth, and ensuring that 'Performance Enhance' is set to 'Standard'...

  3. #3
    Join Date
    Apr 2008
    Posts
    942

    Default Re: Problems with EP35-DS3L and OCZ memory modules

    I know it's no consolation now you have 4 x 1GB modules, but it's often noted that 4 modules don't work aswell as just 2 modules, especially at higher frequencies - whatever the make of Ram.

    I can confirm though (see sig) that 2 x 2GB work fine on my motherboard (same series as yours). Although you still might find limitations when you go way above 800Mhz using 4GB with some makes of memory.

    The other thing to note too, although you have purchased another 2 x 1GB modules which i assume are the same make, model and rating - the actual memory chips used on the modules could be from a different batch, or a different revision or even a different make of chip/model alltogether. Meaning that as the modules may not match, you'll have even greater difficulty in running both pairs together.
    You'll no doubt find, each pair of modules ie 2 x 1GB run fine on their own.
    Last edited by VorLonUK; 10-30-2008 at 09:10 AM.
    GA-P35C-DS3R Rev2.0 F11 bios, E8200 (@3.0Ghz), OCZ DDR3 PC3-10666 Reaper 4GB (@1200Mhz), Xonar D1, 8800GTS 512, Corsair HX520 (Single 12volt line, Max 40A), WDC 3200aaks/5000aaks in AHCI mode, Vista 64 Premium.

  4. #4
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
    Join Date
    Jan 2008
    Location
    PCB Island
    Posts
    25,940

    Default Re: Problems with EP35-DS3L and OCZ memory modules

    What ram speed are you using? Auto may be using to tight of a strap on your ram multi as well. You may have to use Static Tread of 8 as well with 4x1

    As for your Resume from sleep issue, what BIOS are you using? And when you last flashed did you load and apply optimized defaults after the flash? You must, if you flash again please DO NOT USE @BIOS and see here >>>
    http://forums.tweaktown.com/f69/bios...h-guide-27576/


    What I woudl suggest >>>
    Robust Graphics Booster___________ [Auto]
    CPU Clock Ratio ____________ [9]
    CPU Host Clock Control_ [Disabled]
    CPU Host Frequency (MHz)__________ [333]
    PCI Express Frequency (Mhz)_______ [100]
    C.I.A. 2__________________________ [Disabled]
    System Memory Multiplier (SPD)____ [3.20D Or whatever symbol is 400/1600 Strap - or No symbol/letter]

    DRAM Timing Selectable_______ SPD __ [Manual]

    Performance Enhance = [Standard]

    CAS Latency Time________________ 5
    Dram RAS# to CAS# Delay_________ 5
    Dram RAS# Precharge Delay_______5
    Precharge Delay (tRAS)__________ 15

    ACT to ACT Delay (tRRD)_________ 3-4
    Rank Write to READ Delay________ 11 (3.4 may be better in bench's)
    Write to Precharge Delay_________ 4-6
    Refresh to ACT Delay______________ 54-62
    Read to Precharge Delay__________ 3-6
    Static tRead Value_______________ 7-10
    Static tRead Phase Adjust________ Auto

    System Voltage Control____ [Manual]
    DDR2 OverVoltage Control__ [+0.4V] .3
    PCI-E OverVoltage Control_ [+0.1V]
    FSB OverVoltage Control___ [+0.1V]
    (G)MCH OverVoltage Control [+0.3V] .2-.3
    CPU Voltage Control_______ [Normal]

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