1 Reply Latest reply on Jun 2, 2009 1:43 PM by Aryan2411

    start up intermitant & temp negative


      Hi I have a DP965LT board I have two anomalies that are happening

      • On boot the system starts up Lights & fans for about 1-2 seconds and then shuts down for another 1-2 seconds and then starts OK is this normal?
      • When using Intel System Utilities V3.0 everything comes up OK except for Processor temperature that shows a negative temp while the needle shows in the green, is the negative temp showing temp till overheat or is there a sensor issue?


        • 1. Re: start up intermitant & temp negative

          Hi there,


          Actually on all new Intel desktop boards, there is a new features called ProcHot and it is the CPU Die temperature. It is within the range of 0 < Temperature < -100 Celsius.

          ProcHot means:
          temperature at which the CPU will start throttling itself in order to remain cool enough. Throttling means skipping clock cycles.


          If it is showing ProcHot -21 C, it indicates that the cpu have 21 degrees to go to make the cpu to start throttling itself.

          If it returns 0, the CPU will assert prochot and start throttling.


          So since you are using the new Intel Desktop Utilities, it will use the same principle to calculate the temperature and display it in the chart/diagram.

          Website: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&Inst=Yes&ProductID=2780&DwnldID=17223&strOSs=44&OSFullName=Windows*XPProfessional&lang=eng


          So what you can do, check the CPU temperature in the BIOS, from Advanced >> Hardware Monitoring.

          Check the Thermal Specification for the CPU if it is still within the range of operation.
          Get your CPU sl number and search in the link below.
          Website: http://processorfinder.intel.com/default.aspx


          If it is much over the range then, check the following:
          Make sure that you have a PSU Atx Version 2.2 at least.
          Make sure that the chassis is TAC - Thermally Advantage Chassis
          Check for proper aeration in the chassis. (cable)
          Re-integrate the cpu with new small amount of thermal paste (clean the cpu before)

          Hope this helps a bit.


          Kind Regards,