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  • Memory has never ran at 1066

    MB: GIGABYTE GA-MA785GM-US2H
    CHIP: AMD 785G
    PROC: AMD Phenom II X2 550
    MEM: 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Model F2-8500CL5D-4GBPK

    I have never been able to run at 1066, but can run at 800 all day with no issues.

    Current Memory Settings

    DCTs Mode - Ganged
    CAS Latency - 5T
    RAS to CAS R/W Delay - 5T
    Row Precharge Time - 5T
    Minimum RAS Active Time - 15T
    1T/2T Command Timing - 2T
    TwTr Command Delay - 3T
    Trfc0 for DIMM1 - 127.5ns
    Trfc2 for DIMM2 - 127.5ns
    Trfc1 for DIMM3 - 127.5ns
    Trfc3 for DIMM4 - 127.5ns
    Write Recovery Time - 6T
    PreCharge Time - 3T
    Row Cycle Time - 25T
    RAS to RAS Delay - 3T

    Memory Clock - x4 - 800

    Also, the following voltages can be adjusted.

    System Voltage Control
    DDR2 Voltage Control
    NB Volt Control
    SB Volt Control
    CPU NB Vid Control
    CPU Voltage Control
    __________________________________________________ _______________

    Now I read on this forum I need the following settings

    CAS Latency - 5T
    RAS to CAS R/W Delay - 5T
    Row Precharge Time - 5T
    Minimum RAS Active Time - 15T
    1T/2T Command Timing - 2T
    Trfc0 for DIMM1 - 127.5ns
    Trfc2 for DIMM2 - 127.5ns
    Trfc1 for DIMM3 - 127.5ns
    Trfc3 for DIMM4 - 127.5ns
    Write Recovery Time - 6T

    System Voltage Control - Manual
    Set Memory Clock - Manual
    Memory Clock - 1066
    DDR2 Voltage Control - +0.3V
    Northbridge Voltage Control - +0.1V

    This however has been never once been stable. Gskill tech support responded at newegg with the following.

    The settings posted are fine, except the Write Recovery Time should be 8T
    __________________________________________________ ________________

    What is it I am missing, people with the same memory and motherboard report running at 1066 fine, not me, any ideas ?
    Last edited by thughes0126; 02-16-2011, 10:32 AM. Reason: Forgot Memory

  • #2
    Also, there is no mention of the following settings, should these be adjusted to something.

    TwTr Command Delay - 7T
    PreCharge Time - 3T
    Row Cycle Time - 25T
    Ras To Ras Delay - 5T

    Comment


    • #3
      I have a few posts with people with the same MB, CPU, and MEM as me, and it seems that know one has been successful with this, I could complain all day but I thought I would try something else.

      Running at 800, what settings can be adjusted for maximum performance, I read that one guy ran it at 4-4-4-12, but can anything else be safely optimized, and what are the voltages if I run it like that or better ?

      Memory Clock - x4 - 800

      DCTs Mode - Ganged
      CAS Latency - 5T
      RAS to CAS R/W Delay - 5T
      Row Precharge Time - 5T
      Minimum RAS Active Time - 15T
      1T/2T Command Timing - 2T
      TwTr Command Delay - 3T
      Trfc0 for DIMM1 - 127.5ns
      Trfc2 for DIMM2 - 127.5ns
      Write Recovery Time - 6T
      PreCharge Time - 3T
      Row Cycle Time - 25T
      RAS to RAS Delay - 3T

      DDR2 Voltage Control
      NB Volt Control
      SB Volt Control
      CPU NB Vid Control
      CPU Voltage Control

      Comment


      • #4
        At 800, you should be able to run 4-4-4-12......as to 1066 could you post your BIOS setting as to the various voltages as you mentioned vCore, NB, NB/CPU etc. Also what speed are you running the BUS at? for 1066 DRAM need 1066 speed on the system


        Pls offer comments on support I provide, HERE, in order to help me do a better job here:

        Tman

        Comment


        • #5
          Following instructions from this forum, I believe my settings should be this, but this is not stable.

          DCTs Mode - Ganged
          CAS Latency - 5T
          RAS to CAS R/W Delay - 5T
          Row Precharge Time - 5T
          Minimum RAS Active Time - 15T
          1T/2T Command Timing - 2T
          Trfc0 for DIMM1 - 127.5ns
          Trfc2 for DIMM2 - 127.5ns
          Trfc1 for DIMM3 - 127.5ns
          Trfc3 for DIMM4 - 127.5ns
          Write Recovery Time - 8T

          Memory Clock - x5 - 1066

          I also have these settings, which are never mentioned.

          TwTr Command Delay - 3T
          PreCharge Time - 3T
          Row Cycle Time - 25T
          RAS to RAS Delay - 3T

          I also have these voltage settings.

          DDR2 Voltage Control +0.3
          NB Volt Control +0.1
          SB Volt Control - AUTO
          CPU NB Vid Control - AUTO
          CPU Voltage Control - AUTO

          And lastly, I have these other misc. settings.

          CPU Clock Ratio - AUTO
          CPU NB Freq. - AUTO
          CPU Host Clock Control - AUTO
          PCIE Clock - AUTO
          HT Link Width - AUTO
          HT Link Frequency - AUTO

          These settings don't work yet, windows can't last but a moment, and MemTest produces dozens maybe hundreds of errors, depending how long I let it run.

          You see anything I am doing wrong or should try ?

          Also, you said "Also what speed are you running the BUS at? for 1066 DRAM need 1066 speed on the system" This I have never tried, which one of these settings are you referring to when you say BUS ?
          Last edited by thughes0126; 02-16-2011, 06:15 PM.

          Comment


          • #6
            Try this:

            DCTs Mode - Unganged
            CAS Latency - 5T
            RAS to CAS R/W Delay - 5T
            Row Precharge Time - 5T
            Minimum RAS Active Time - 15T
            1T/2T Command Timing - 2T
            Trfc0 for DIMM1 - 127.5ns
            Trfc2 for DIMM2 - 127.5ns
            Trfc1 for DIMM3 - 127.5ns
            Trfc3 for DIMM4 - 127.5ns
            Write Recovery Time - 8T

            Memory Clock - x5 - 1066

            TwTr Command Delay - 3T
            PreCharge Time - 3T
            Row Cycle Time - 25T
            RAS to RAS Delay - 3T

            DDR2 Voltage Control +0.3
            NB Volt Control - AUTO
            SB Volt Control - AUTO
            CPU NB Vid Control - +0.1V
            CPU Voltage Control - AUTO

            CPU Clock Ratio - AUTO
            CPU NB Freq. - AUTO
            CPU Host Clock Control - AUTO
            PCIE Clock - AUTO
            HT Link Width - AUTO
            HT Link Frequency - AUTO

            Or you can try:

            DCTs Mode - Unganged
            CAS Latency - 5T
            RAS to CAS R/W Delay - 5T
            Row Precharge Time - 5T
            Minimum RAS Active Time - 15T
            1T/2T Command Timing - 2T
            Trfc0 for DIMM1 - 127.5ns
            Trfc2 for DIMM2 - 127.5ns
            Trfc1 for DIMM3 - 127.5ns
            Trfc3 for DIMM4 - 127.5ns
            Write Recovery Time - 8T

            Memory Clock - x4 - 800 (will become 1066 after the changes below)

            TwTr Command Delay - 3T
            PreCharge Time - 3T
            Row Cycle Time - 25T
            RAS to RAS Delay - 3T

            DDR2 Voltage Control +0.3
            NB Volt Control - AUTO
            SB Volt Control - AUTO
            CPU NB Vid Control - +0.1V
            CPU Voltage Control - AUTO

            CPU Clock Ratio - AUTO
            CPU NB Freq. - AUTO
            CPU Host Clock Control - Enabled
            CPU Host Clock - 267
            PCIE Clock - AUTO
            HT Link Width - AUTO
            HT Link Frequency - AUTO

            CPU Ratio - x12

            Thank you
            GSKILL TECH

            Comment


            • #7
              Method 1 - 1st Try BSOD - 2nd Try - BSOD - 3rd Try - Complete Freeze while loading the desktop.

              Method 2 - 1st Try - Some sort of bios protection screen I never seen before, which reset CPU Host Clock - 2nd Try - Same Thing - 3rd Try - Booted to desktop, Froze with lines all over the screen.

              Both methods failed MemTest.

              Depending on my configuration, I can't change Write Recovery Time to 8T, it only goes as high as 6T (there is no option for 8T) But the option is there sometimes. I'm guessing depending on what one setting is, I may or may not be able to bump WRT from 6T to 8T (But that is just a guess)

              I was unable to bump Write Recovery Time to 8T in either of those configs.

              Anything else to try ?



              Also, some other info in case you need it.

              - Not an OverClocker, so little chance I have something else set that could be causing this.
              - I can run at 800 all day long, Passing Memtest, Prime95, and SuperPi with flying colors. (I know the "Prime's are more for CPU, but they will still fail if the memory settings are incorrect, but you probably already know that lol.
              - Memory is in Slot 0 and Slot 2, but I have also tried various combination with Memory in Slot 0 and Slot 1, and Slot 1 and Slot 3
              - This is an HTPC, that has ran solid for several weeks without so much as a reboot (Mem at 800 ofcourse) so there is little chance that another bad component is causing this.
              - Processor runs at about 40 Celsius, as high as 47 under full load.
              - I have a Cooler Master for the processor, but everything else uses stock cooling.
              - Bios is the most recent on the site, F12a
              - Windows 7 64Bit Home Pro, all drivers are updated.
              Last edited by thughes0126; 02-17-2011, 01:14 PM. Reason: Added some info just incase.

              Comment


              • #8
                DCTs Mode - Unganged
                CAS Latency - 4T
                RAS to CAS R/W Delay - 4T
                Row Precharge Time - 4T
                Minimum RAS Active Time - 12T
                1T/2T Command Timing - 2T
                Trfc0 for DIMM1 - 127.5ns
                Trfc2 for DIMM2 - 127.5ns
                Trfc1 for DIMM3 - 127.5ns
                Trfc3 for DIMM4 - 127.5ns
                Write Recovery Time - 6T

                Memory Clock - x4 - 800

                TwTr Command Delay - 3T
                PreCharge Time - 3T
                Row Cycle Time - 25T
                RAS to RAS Delay - 3T

                DDR2 Voltage Control +0.2
                NB Volt Control - AUTO
                SB Volt Control - AUTO
                CPU NB Vid Control - AUTO
                CPU Voltage Control - AUTO

                CPU Clock Ratio - AUTO
                CPU NB Freq. - AUTO
                CPU Host Clock Control - AUTO
                PCIE Clock - AUTO
                HT Link Width - AUTO
                HT Link Frequency - AUTO

                Thank you
                GSKILL TECH

                Comment


                • #9
                  That config is stable thus far, passing Prime95, SuperPi, and the Windows Experience Index.

                  I can run MemTest over night to really pound that config.

                  If it passes, I'll try to be content, and if it fails, I will try each of these configs with just 1 stick (out of 2) at a time and see what happens, it will take some time though, Ill come back within a few days and let you know what happened.

                  Comment


                  • #10
                    Let us know


                    Pls offer comments on support I provide, HERE, in order to help me do a better job here:

                    Tman

                    Comment


                    • #11
                      Should be fine, just a case of the memory controller overloaded. It is common, but it never hurts to reach for the stars and settle for what's realistic.

                      Thank you
                      GSKILL TECH

                      Comment


                      • #12
                        Everything is stable at 4-4-4-4-12 @ 800. I would have loved to get the 1066 that made me buy the sticks, but with my exact MB, MEM, and CPU I can't get it stable. Memtest ran for 11 hours and not 1 error.

                        Thanks for trying guys, I won't let this reflect your memory, more of a lack of research on my exact MB, MEM, and CPU.

                        Comment


                        • #13
                          Never know, may come across a CPU upgrade at a good price that can push all the sticks to their max...and don't feel bad about it, with AMD CPUs you often really have to dig to find what they are capable of


                          Pls offer comments on support I provide, HERE, in order to help me do a better job here:

                          Tman

                          Comment

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