Question about IBM ThinkPad T40 2373 Notebook

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My ibm thinkpad booting and hanging fault

When i press power ON button it comes on but will not boot, one of the green LED before the battery indicator LED will be ON but the LCD remain black. Sometimes when it tries to boot it hangs after working for 1 minute

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  • Anonymous Dec 20, 2007

    have tried pressing the f9 buttons at times it comes on

  • mattriv Dec 26, 2007

    Mine does the same thing, I personally think its overheating or has permanent overheating damage.

  • Anonymous Aug 11, 2008

    mine hangs on the boot, but if you plug in the ac adapter, it will boot (even if you remove the ac adapter after you get the thinkpad splash screen)

  • dasina Aug 25, 2008

    I have 2 IBM T40 ThinkPads, both having the same issues. Certainly seems like a loose connection. If I hold the laptop with 2 hands grasping the lower lefthand corner just after powering up, it will start up normally but don't bump it or move it or it will go out. I have opened up both and checked keyboard connections, mouse touch pad connections and hard drive connection. All are good. Next step, it must be some other loose connection on the mother board or in the area of the lower lefthand corner of the laptop. I was hoping to find a solution without breaking them down any further but it looks like I may have no other choice.

  • spk2 Dec 25, 2008

    Have the same problem with my T40.

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I have an IBM T60 and each time powered it, It powers and sounded ok and all the light are showing as well but it's take time to show on the screen a times it wouldn't show at all at the screen have try all I an but it didn't work what should I do?

Posted on Feb 25, 2013

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Problem of black screen has been fixed. now I get restarted when ever I plug or unplug while laptop T42 is running

Posted on Aug 31, 2008

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Try pressing Fn F7

Posted on Oct 22, 2007

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1 Answer

No LCD Display on Dell Vostro 1700 - 17"


It sounds like you have been pretty thorough trying to resolve the lcd problem

A blacked-out screen doesn't necessarily indicate a broken monitor.
If the computer has run out of charge or is in hibernation or sleep mode,
if the screen is too dark, or if the display cable has come disconnected from the motherboard, the screen may appear black or fail to turn on. To fix a blacked-out laptop screen, troubleshoot the screen settings, check the LCD connector and see if the computer is awake and receiving power.
Touch the touchpad or move the external mouse to see if the computer is asleep or hibernating. If the computer fails to respond, press "Enter" on the keyboard. Press the power button if the screen remains black.

Confirm that the power indicator light, found at the front of the computer or above the keyboard, is glowing solid green or blue. Confirm that the power adapter is plugged into the computer and into a wall outlet. Confirm that battery indicator light is glowing solid green or blue. Hold down the "Fn" key. Press the up-arrow to see if the screen brightness increases.
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Hold down the power button for 10 seconds to turn off the laptop.
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Hello,

Contact with notebook repairing engineer. Might be coz of some short circuit, BIOS corruption or any malfunction of the hardware.


Regards;
Hassan

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My ibm thinkpad booting and hanging fault


Try this... to see if your video card is bad...
Connect your laptop to an external monitor and press the Function key plus F5 on the laptop... if your OS shows up on the monitor screen, then you have a bad video card...

If its not the video, Bad Ram might be the cause.
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