Question about IBM ThinkPad T42 Notebook

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Screen shakes and it freezes

When I start my T42, sometime the screen shakes a bit (even in BIOS mode) and then it freezes up. I am able to sometime start up all the way into windows but a slight movement of screen and it's gone. What could be wrong?

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  • campmjc Sep 11, 2008

    I am a tech working on a t42 that has the same problem, screen will sort of glitch and become fussy while shaking, at the same time it locks up. This will happen under windows, bios, linux or diag tools, Changed the memory didn't help. It is not a problem with the lcd cable this is a serious hardware issue. It also will not boot for sometime after being shutdown from this problem.

    I'm going to suggest a new laptop. Tools I used finished a processor test but found no problems.

  • 100park Dec 26, 2008

    I have same problem on a T41. Pretty sure it's the hard drive. I took it out and reinerted it and the PC reboots but will freeze up again if I move it. Also discovered that by pressing down on the top of the front right surface - directly on top of the hard drive - it will also reboot just fine. Some connection must not be tight. Any suggestions short of taking it to an expert to repair (may be inevitable) would be appreciated.


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I have the freezing problem as well i have taken out the HD and still freezes comp is in shambles adn connections look good. I discovered it is only when you press on the left side palm rest it will freeze. I removed the pi slot it did ok for a very short time! Still freezes just wondering if I put something under the mb and the case it will quit flexing! not sure though.. I know its not the PS and the HD and the connections.

Posted on Mar 12, 2010

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Try pulling the battery and just running off ac power, I did this and it fixed it. Tested my battery with a meter and it was running high at 12.43 V's on the cells, Nominal is 10.8. Thanks Abrsvcs for suggesting psu.

Posted on Sep 11, 2008

  • Davor Aug 30, 2013

    I second this. I had an T60p with unexplainable freezes wher everything would just freeze with no reaction to keyboard, mouse etc, with screen staying the way it was. Luckily, I thought, I had another T60p with broken screen so I tried replacing everithing from motherboard onward. Didn't help.

  • Davor Aug 30, 2013

    Then I read this comment and pulled the old battery out that wasn't good anyway and it works now.


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For a T42 the video connection at the motherboard side is held in place by a screw down plate. It is possible that the ribbon connection at the panel end is a bit flakey, but unusual. I would look more for a power supply problem within the laptop itself. I have seen a few of this type of problem and it is rarely the cabling.

Posted on Mar 19, 2008

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If moving the laptop causes it to freeze, it is almost certainly a hardware problem, and not one you want to mess with too much (something may short). Off to the service center!

Posted on Mar 19, 2008

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I suspect a possible loose contact between the ribbon connecting the motherboard module to the LCD display module. if you can open up the laptop, check if the both the ends are snug and tight.

Posted on Mar 19, 2008

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