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XMP Setting with GSkill F3-12800CL7-6GBPI

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  • XMP Setting with GSkill F3-12800CL7-6GBPI

    Main Board : ASUS P6T WS Professional with BIOS V1205
    DRAM : GSkill F3-12800CL7-6GBPI (3 x 2GB DDR3 1600)
    CPU : i7 950
    OS : Windows 7 Ultimate 64 Bit

    I set the XMP profile in the BIOS Ai Tweaker

    The following were automatically set by XMP profile :
    BCLK Frequency - 133 Mhz
    PCIE Frequency - 100Mhz
    DRAM Frequency - 1600Mhz
    DRAM Bus Voltage - 1.5V (indicated as 1.5V)
    DRAM Timing Control :
    DRAM CAS# Latency - 7
    DRAM RAS# to CAS# Delay - 8
    DRAM RAS# PRE Time - 7
    DRAM RAS# ACT Time - 24
    DRAM Timing Mode - 2N

    All other settings were in Auto

    Then I checked the DRAM voltage with Everest, the DRAM Bus Voltage was shown 1.9V
    Accordance with the XMP profile, the voltage should be 1.5V
    Will the voltage too high may damage the CPU?

    When I manually changed the DRAM Bus Voltage to settings other than 1.5V (e.g. 1.52V), the voltage shown in Everest was as set (1.52V).
    Why?
    Last edited by felix2011; 03-24-2011, 07:00 AM.

  • #2
    The voltage you set may slightly vary from the actual voltage the motherboard uses. In BIOS, make sure DRAM Bus Voltage is manually set, and QPI/DRAM Core Voltage is AUTO.

    Thank you
    GSKILL TECH

    Comment


    • #3
      Originally posted by GSKILL TECH View Post
      The voltage you set may slightly vary from the actual voltage the motherboard uses. In BIOS, make sure DRAM Bus Voltage is manually set, and QPI/DRAM Core Voltage is AUTO.

      Thank you
      GSKILL TECH
      The DRAM Bus Voltage was originally show Auto in Bios.
      When I set XMP in Bios, the DRAM BUS Voltage automatically changed to 1.5V and matched with the DRAM XMP profile.
      But I don't know why the actual voltage was 1.9V as indicated in Everest or ASUS Turbo V ?
      Cannot manually set 1.5V, otherwise the actual voltage will rise to 1.9V, setting other than 1.5V is OK.
      If XMP not used, all manually set as per the XMP profile included the 1.5V DRAM Bus Voltage, all settings as indicated in Everest were as set and no changed.

      Comment


      • #4
        Same problem here using the same type of RAM kit:

        http://www.tomshardware.com/forum/27...defaulted-dram

        Is this the problem of XMP profile in the RAM's SPD?

        Comment


        • #5
          And more here, the same problem using the similar GSkill DDR3-1600 RAM kit:

          http://www.hardwarecanucks.com/forum...s-voltage.html

          Comment


          • #6
            Yes, it is possible that SPD is incorrect. Use 1.50V and it should be fine.

            Thank you
            GSKILL TECH

            Comment

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