Question about IBM ThinkPad T42 Notebook

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IBM T42 gave fan error, replaced and can not get it to reboot

My IBM notebook T42 gives FAN ERROR message and switches off. It is an intermittent problem and many times I am unable to get it started. Once I was able to get it working, since then I have not switched it off. I just close the LCD panel and put it in hibernation mode. I can also reboot in this mode during automatic updates. This seems to be BIOS problem connected with some hardware. The Lenovo service center failed to identify the problem. Are the schematic circuit diagrams available to trace this problem? I also want to know if I can use larger hard disk than 80 GB that came with the machine. If so what is the maximum limit. Is BIOS upgradation needed for this and how do I do it. I had the same problem and replaced the fan, only now when I attempted to turn on the computer the fan goes on but it doest reboot? The screen never turns on and I dont hear or see the hard drive running? Any help!

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  • jvasquez70 May 27, 2009

    the fan is running, I have gone over all connections to see if any we loosened. The screen is just black and the computer never boots

  • Frank Zhang
    Frank Zhang May 11, 2010

    you mean sometime your laptop "The screen never turns on and I dont hear or see the hard drive running, and while the fan never respin"? that mean no any booting and dark screen?

  • Jeff Strader
    Jeff Strader May 11, 2010

    go into the bios ans see iff you can disable the fan alarm that triggers the shutdown, also check the power management in the bios for any fan power saving features that might be enabled and disable them..

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Make sure the fan is pluged in correctly and you didnt unplug anything else such as memory or etc or bump the cpu... did you put any thermal paste on the cpu when you put the fan on it? its needed to bond the too together to make a better cooling system there maybe a setting in your bios to disable fan monitoring or cpu temp etc have to look at your bios to see

Posted on May 27, 2009

  • David Grassel
    David Grassel May 27, 2009

    try reseating the ram powered off with battery out then press power button while unpluged and battery out this will drain all power might correct the issue you should be able to upgrade the hard drive to any size just make sure you get the right connection such as sata or ide

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Description

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