1 Reply Latest reply on Jun 14, 2011 7:54 AM by Felix_M

    H_CPURST is not released.

    Community Member

      Hi,I use US15WP and Z510PT.
      System reset is done by  external EC.


      Usually,Z510PT starts normally,but sometimes don't; about once every 100 times.
      When investigating,H_CPUPWRGD and H_CPURST of US15WP are still low.
      RSTWARN and SLPMODE are low.
      It is observed that Figure 104.Intel SCH Voltage Sequencing of document number 387926.
      What is the cause of this problem?




        • Re: H_CPURST is not released.
          Felix_M BlackBelt

          Hi Kensuke:


          Wecome to the Intel® Embedded Community.


          I     want to make you aware of a special place to go with questions like    yours.  The Intel® e-Help desk is staffed by Intel representatives who    support select Intel embedded platforms including Intel Atom™ and    associated  chipsets including US15W.


          To access e-Help, you need to be a Privileged member of the Intel® Embedded Community.

          If you are not already a Privileged member, you can request an upgrade to your community account here:




          In    addition to access to e-Help, Prvileged members may also access the    confidential content within the Intel® Embedded Design Center, such as    design documents, specifications, and training materials.


          I hope this helps.




          J. Felix McNulty

          Community Moderator (Intel contractor)