3 Replies Latest reply on Jun 28, 2009 8:24 AM by Aryan2411

    Prochot error


      Ok to start off, here is my old setup:

      2gig                OCZ Platinum Revision ddr2 800 memory

      500gb western digital hard drive

      intel core 2 duo e6420

      550 watt rosewill powersupply

      radeon 4870

      asrock 4core dual-vsta mobo


      I recently bought a DP43TF motherboard and through it in. My computer would freeze on boot, so we looked and my cpu was getting throttled because the temperature on the bios said PROCHOT. We tried replacing the thermal paste, and the cpu fan. We also tried replacing every piece of hardware and it also didn't work. So I issued an rma on it and got a new one. I just put the new one in, and same thing. I'm getting a PROCHOT error, and It wont even boot, it just restarts. Has this happened before, and is it an easy fix? I don't think I got 2 bad motherboards in a row. Any help is really appreciated.

        • 1. Re: Prochot error



          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.


          First thing to do is to:
          1) CMOS clear then,
          Update the Bios to the latest one Version using the recovery mode:


          I think that this board has an option called Intel Management Engine Bios.
          You can access the MEBx bios by pressing Ctrl+P.
          Some board needs to have the settings enabled in the Bios in order to access it.
          Bios >> Boot Configuration >> Intel ME Setup Prompt: Enable.


          Go into the Ctrl + P MEBx Bios
          Intel ME COnfiguration >> Enter
          Intel Quiet System Technology >> Enable.
          Save and Exit


          After the BIOS Update, try to read the temperature from the BIOS.


          a) Advanced >> Hardware Configuration
              ProcHot must be negative.
              For example, if the temperature is -21C, this means that it is still ok, as you have 21 more degrees to go for it to be critical.


          b) Use the tools from Intel to read the temperature

              Website: http://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&Inst=Yes&ProductID=2931&DwnldID=17223&strOSs=All&OSFullName=AllOperatingSystems&lang=enghttp://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&ProductID=2912&DwnldID=15641&strOSs=All&OSFullName=AllOperatingSystems&lang=eng

          CPU Temperature Website: http://ark.intel.com


          If you have temperature higher than 75C using the Intel Desktop Utilities, then it can be due to any of these:
          a) bad integration
          b) PSU not ATXv2.2
          c) Chassis is not TAC (Thermally Advantage Chassis)

          Try different bios version

          Hope this may help you.



          1 of 1 people found this helpful
          • 2. Re: Prochot error

            Ok, awesome. So my computer restarts when it gets stuck trying to boot windows, would doing all of the things you listed fix this?


            edit: also its at PROCHOT -50c so I think I'm fine there.

            • 3. Re: Prochot error

              Hi there,


              Sorry for the delay. Yes you are right, the system is fine.


              If the temperature is -50C, this means that it is still ok, as you have 50 more degrees to go for it to be critical.



              All the best,