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Thread: DDR3-2000 ep45c-UD3R Dual Channel issues




  1. #1
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    Default DDR3-2000 ep45c-UD3R Dual Channel issues

    Hi all,

    Hi, I bought some new RAM for my system to improve performance. I had been using DDR2-800, and my new RAM is DDR3-2000. I am having some issues getting it to work with both sticks installed. I have been keeping track of my experiments as I go so I can identify trends. Note that tests 6 and 7 show that the board can handle 500Mhz FSB for single-channel DDR3-2000. Both sticks test fine independently in this way. When I try to put them both in at 800/1000 Mhz they fail pretty quick in MemTest86+. It seems to fail as sson as the chunk of RAM being tested jumps to 2049-xxXxMB.

    For now I am running the sticks in Dual Channel at 667 MHz and that seems stable.

    I was thinking about trying to update the BIOS...thoughts?






    Thanks!

    Pete

  2. #2
    Lsdmeasap's Avatar
    Lsdmeasap is offline GIGABYTE Guru
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    What BIOS are you using? Yes, I would advise you use the latest one.

    Here is a guide, please do not use @BIOS
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

    Here is the latest BIOS (F5g)
    http://forums.tweaktown.com/f69/giga...st-bios-28441/


    They are likely failing at 2000Mhz due to your CPU not being stable at 500 FSB yet. You will need to get that sorted before you try and run the ram at 2000Mhz. So I suggest if you want to try and run them at 2000Mhz then set your FSB to 500 and make the memory timings very loose so when things fail you know the ram is not the cause

    That memory kit is made for 1156/1336 boards, so not sure if they will perform properly on your setup?

  3. #3
    Chike is offline Senior Member
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues


  4. #4
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Ok, I will post the full BIOS settings when I get home. For the moment, in the table I provided, please assume that all unlisted settings are set to auto.

    lsdmeASAP: I do not understand how the the CPU could be a possible issue at 500 FSB: Please take a quick peek at Test's 6, 7, and 8 in my table: Memtest86+ passes with only 1 stick installed at 500 FSB, but when the only change I make is to add the 2nd stick, Memtest86+ fails.

    I will install the latest BIOS tonight also.

    I will re-run a few tests also and see if the new BIOS helps...

    Thanks!

  5. #5
    Chike is offline Senior Member
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Quote Originally Posted by pkw111 View Post
    Ok, I will post the full BIOS settings when I get home. For the moment, in the table I provided, please assume that all unlisted settings are set to auto.
    That what I was worried about.

    Please post a screen capture of MemSet main(click >>) and SPD(click spd) windows and EeasyTune -> Tuner -> Advanced -> Voltage tab with your settings.

  6. #6
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Quote Originally Posted by Chike View Post
    That what I was worried about.

    Please post a screen capture of MemSet main(click >>) and SPD(click spd) windows and EeasyTune -> Tuner -> Advanced -> Voltage tab with your settings.

    Sure thing:


  7. #7
    Chike is offline Senior Member
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    A bit high CPU PLL set it manually to 1.57.
    Set CPU Vcore and CPU Termination maually to their target voltage in EasyTune.
    With 8GB memory you may need much more MCH Core, start with 1.22v an increase gradually if needed up to 1.26v.
    DRAM Voltage is only 1.56v, set to 1.6v or 1.62v.

    Try the following memory settings for DDR-1600
    Code:
    Performance Enhance ------------------- : [Standard]
    Extreme Memory Profile --- (X.M.P.) --- : [Profile 1]
    System Memory Multiplier -------------- : [4.00D]
    DRAM Timing Selectable ---------------- : [Manual]
    
    Standard Timing Control
    CAS Latency Time -------- ?? ---------- : [8]
    tRCD ------------------- ?? ---------- : [8]
    tRP --------------------- ?? ---------- : [8]
    tRAS ------------------- ?? ---------- : [24]
    
    Channel A
    Static tRead Value --------------------- : [9]
    Channel A
    Static tRead Value --------------------- : [9]
    CPU Termination may need to ne invreased 1.22-1.24v.
    MCH Reference may need adjustments - http://forums.tweaktown.com/f69/how-...asytune-29746/.
    The short version:
    1. Set CPU Termination to default 1.2v.
    2. Set MCH or CPU Reference to it's desired value.
    3. Set(restore) CPU Termination to it's desired value.

    Default MCH and CPU references are 0.76v.
    Usuallu 1 to 3 ticks lower than default MCH Reference will help stability.


    EDIT: BTW have you loaded optimized defaults to start with?
    EDIT2: sorry just noticed it's only 4GB of memory, shouldn't need more than 1.26v MCH Core.
    Last edited by Chike; 03-23-2010 at 05:44 AM. Reason: corrected MCH Core range.

  8. #8
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Quote Originally Posted by Lsdmeasap View Post
    What BIOS are you using? Yes, I would advise you use the latest one.

    Here is a guide, please do not use @BIOS
    http://forums.tweaktown.com/f69/bios...h-guide-27576/

    Here is the latest BIOS (F5g)
    http://forums.tweaktown.com/f69/giga...st-bios-28441/


    They are likely failing at 2000Mhz due to your CPU not being stable at 500 FSB yet. You will need to get that sorted before you try and run the ram at 2000Mhz. So I suggest if you want to try and run them at 2000Mhz then set your FSB to 500 and make the memory timings very loose so when things fail you know the ram is not the cause

    That memory kit is made for 1156/1336 boards, so not sure if they will perform properly on your setup?
    I am using the F4 BIOS.

    Are you sure the bios you linked me to is correct? It is marked as version F5g. On the gigabyte product page, the latest I see for the beta BIOS is F5f... Re-assure me?

    I have prepped a bootable DOS 6.22 CD, and added to it the BIOS file.
    Last edited by pkw111; 03-23-2010 at 06:04 AM.

  9. #9
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Quote Originally Posted by Chike View Post
    A bit high CPU PLL set it manually to 1.57.
    Set CPU Vcore and CPU Termination maually to their target voltage in EasyTune.
    With 8GB memory you may need much more MCH Core, start with 1.22v an increase gradually if needed up to 1.26v.
    DRAM Voltage is only 1.56v, set to 1.6v or 1.62v.

    Try the following memory settings for DDR-1600
    Code:
    Performance Enhance ------------------- : [Standard]
    Extreme Memory Profile --- (X.M.P.) --- : [Profile 1]
    System Memory Multiplier -------------- : [4.00D]
    DRAM Timing Selectable ---------------- : [Manual]
    
    Standard Timing Control
    CAS Latency Time -------- ?? ---------- : [8]
    tRCD ------------------- ?? ---------- : [8]
    tRP --------------------- ?? ---------- : [8]
    tRAS ------------------- ?? ---------- : [24]
    
    Channel A
    Static tRead Value --------------------- : [9]
    Channel A
    Static tRead Value --------------------- : [9]
    CPU Termination may need to ne invreased 1.22-1.24v.
    MCH Reference may need adjustments - http://forums.tweaktown.com/f69/how-...asytune-29746/.
    The short version:
    1. Set CPU Termination to default 1.2v.
    2. Set MCH or CPU Reference to it's desired value.
    3. Set(restore) CPU Termination to it's desired value.

    Default MCH and CPU references are 0.76v.
    Usuallu 1 to 3 ticks lower than default MCH Reference will help stability.


    EDIT: BTW have you loaded optimized defaults to start with?
    EDIT2: sorry just noticed it's only 4GB of memory, shouldn't need more than 1.26v MCH Core.
    Thanks. I did not Load optimized defaults to start with. Should I? I will be anyway in a few hours when I get home and flash the BIOS...

    I will flash the BIOS, then I will attempt a few basic tests at 1600/2000 with memtest86+...

  10. #10
    Chike is offline Senior Member
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    Default Re: DDR3-2000 ep45c-UD3R Dual Channel issues

    Get the 1600 stable then see how to continue. 500MHz FSB is not so easy to get stable.
    The 8-8-8-24 timings should be good up to DDR-1777 (444MHz FSB x 4.00D) the you'd have to change to 9-9-9-27.

    Memtest96+ is not enough, run Prime95 blend torture for 8-12 hours afterwards, if it fail remember the FFT size that failed.
    What kind of cooling you have, case and CPU, what are core teperatures under load?
    Please fill your forum signature with your system specs.

    EDIT: yes load optimized defaults after you flash, save reboot and reapply changes.
    Last edited by Chike; 03-23-2010 at 06:41 AM.

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