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AMD FX-8350 Black Edition Vishera 4.0GHz + F3-14900CL9D-8GBSR + GA-990XA-UD3

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  • AMD FX-8350 Black Edition Vishera 4.0GHz + F3-14900CL9D-8GBSR + GA-990XA-UD3

    Hello,

    I made a post back in 2012 about this same RAM and motherboard, but have since upgraded my CPU and doubled the number of RAM sticks to 16 MB of two 8MB Dual Channel Kits. I am still having the same problems with getting this RAM to operate at 1866MHz with the suggested timings of 9-10-9-28, though. It will boot BIOS fine and even at 1875MHz, but will not boot Windows and instead shows a blue screen then immediately reboots. Also, as soon as I installed the other 8MB Dual Channel kit, the speed of all the RAM went from 1600Mhz down to 1333MHz. So now I am wondering if the problem may be that my 700 watt power supply is not enough for the system I have, or would that not have this effect on the RAM settings? To help diagnose the problem I have attached several screenshots of the BIOS settings I use for the working 1333MHz and the not working 1866MHz speeds. In 2012 someone suggested upping the RAM voltage to 1.55, but it seems the BIOS has automatically upped it to 1.65 and this can be seen in the screenshots. Another suggestion was to up the NB voltage, and that is currently set at the default of 1.100V (also shown in the screenshots). I have not yet tried to up the NB voltage, but am willing to try if someone thinks that may help.

    Thank you in advance!

  • #2
    Originally posted by w4ffles78 View Post
    Hello,

    I made a post back in 2012 about this same RAM and motherboard, but have since upgraded my CPU and doubled the number of RAM sticks to 16 MB of two 8MB Dual Channel Kits. I am still having the same problems with getting this RAM to operate at 1866MHz with the suggested timings of 9-10-9-28, though. It will boot BIOS fine and even at 1875MHz, but will not boot Windows and instead shows a blue screen then immediately reboots. Also, as soon as I installed the other 8MB Dual Channel kit, the speed of all the RAM went from 1600Mhz down to 1333MHz. So now I am wondering if the problem may be that my 700 watt power supply is not enough for the system I have, or would that not have this effect on the RAM settings? To help diagnose the problem I have attached several screenshots of the BIOS settings I use for the working 1333MHz and the not working 1866MHz speeds. In 2012 someone suggested upping the RAM voltage to 1.55, but it seems the BIOS has automatically upped it to 1.65 and this can be seen in the screenshots. Another suggestion was to up the NB voltage, and that is currently set at the default of 1.100V (also shown in the screenshots). I have not yet tried to up the NB voltage, but am willing to try if someone thinks that may help.

    Thank you in advance!
    Oops, I forgot to attach the screenshots...here are 5 of 6
    Attached Files

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    • #3
      and the final screenshot

      Originally posted by w4ffles78 View Post
      Oops, I forgot to attach the screenshots...here are 5 of 6
      There was a limit of 5 attachments so here is the 6th and final one...and sorry for so many posts, but thank you for the help!
      Attached Files

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      • #4
        HT Link Frequency should remain at 2600MHz for DDR3-1866. In the picture, you have it reduced to 2200MHz.

        As far as timings, Write Recovery Time is fine at 14T, Precharge Time and TwTr can be 7T

        For Voltages, CPU NB VID +0.1V or 1.20V-1.25V and see how that works

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        • #5
          Thanks but still no luck

          Hello and thank you for helping GSKILL TECH!

          I applied all of the changes that you suggested, including trying increases in the CPU NB VID up to 1.28V (which amounted to +0.1V from my previous value). I am still encountering a blue screen as soon as it attempts to start up Windows 7 Ultimate 64bit. Should I continue to try increased values of the CPU NB VID, or do you think that would do more harm than good? Otherwise, any other suggestions are very welcome! I am really at a loss as to what the issues could be regarding this RAMs inability to operate at 1866MHz.

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          • #6
            Have you tried one module at a time? Maybe it is a bad stick?

            Comment


            • #7
              I have not tried that. That is a good idea, but I wont get a chance until next week to test that out. Thank you!

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