Why do I get a message at Boot Up saying ‘ERROR. System Monitoring: Sensor failed’?

Juan Carlos Espinosa Agudelo August 21, 2012

To be more precise it checked up on my hardware and gives me the message:

Intel(R) Celeron(R) D CPU 3.33 GHz
515072K Extended RAM Passed
512K Cache SRAM Passed
Atapi CD-ROM: Optiarc DVD RW AD-7170A
ATA Fixed Disk: MAXTOR STM380815AS
Mouse initialized
System Monitoring: Sensor failed

Press to resume, press for setup

I haven’t resumed the system yet, I’m placing this message using my laptop. The computer is Windows XP.
Does any of you happen to know what the message means?


  1. ha14
    August 21, 2012 at 9:10 am

    perhaps CPU cooler is not connected in the proper way

  2. Bruce Epper
    August 21, 2012 at 7:46 am

    Interesting that it doesn't specify what sensor is having a problem. You can try to go into the BIOS (setup) to see if you can find an indication of what sensor has borked. Depending on the system builder, they may have installed monitoring software on the system that will alert you to the problem if you resume the boot process and bring up the OS. You may also find indicators in the System Log.

  3. GrrGrrr
    August 21, 2012 at 4:52 am

    IF you press F2 it would take you back to BIOS and there you would be able to see which sensor is playing bad.

  4. jessemanalansan
    August 21, 2012 at 1:11 am

    Could be because of failing sensor monitors on the laptop :/