3 Replies Latest reply on Mar 24, 2010 3:50 PM by kcampbell

    Intel DP55WG not at 1600MHz






















      Bought the motherboard and found something which I hope Intel can answer.




      Motherboard : Intel DP55WG




      AA no.:












      TRUE ' 1600MHz






      3) The speed indicated is not genuine.




      min (Dual channel), 1 module per channel.


      1) Upon boot up, the BIOS (Press 'F2' to access)  indicate the Memory speed as 1600MHz, however when I scope it

          with an oscilloscope it is reading only 1333MHz (i.e. the clocks are at 666MHz when Memory speed

          at 1600MHz, the clock speed should be as 800MHz)


      2) Intel website states it can support 1600MHz but scope indicates it is not running at '


      Micron DDR3-1600MHz
      Intel i5 - 750

        • 1. Re: Intel DP55WG not at 1600MHz

          your memory is not XMP

          the memory speed would upto 1666 with the XMP

          this link may be useful:


          • 2. Re: Intel DP55WG not at 1600MHz

            Thanks liush...! But disappointed that they need XMP RAM in order to support DDR3-1600...

            Also, Intel should have state it in the website not just in the fine print of  Product Guide.

            • 3. Re: Intel DP55WG not at 1600MHz

              I hate to disagree with you, but whether the memory is XMP or not makes no difference.  If the memory is rated at 1600 MHz and he has configured the BIOS settings to make the memory operate at 1600 MHz (which is 800 MHz per slot for Dual Channel memory), then the memory should be operating at 1600 MHz.  I would suggest that he use CPU-Z to determine if the memory is running at the correct speed.


              BTW, after upgrading the BIOS to KGIBX10J.86A.4752.2010.0217.1029, 2/17/2010 and power cycled my machines, the memory frequency readout is wrong in the the Intel Desktop Utilities ver and CPU-Z 1.53.1.  My memory is G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL and I have them set up to run at 1600 MHz, but in these software packages, the memory is showing up ar 1333 MHz..  The BIOS is showing that they are running at 1600 MHz.


              So there may be a small bug in the BIOS.