Question about IBM ThinkPad T40 2373 Notebook

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When using laptop on lap, screen blanks out and turns fuzzy

I have a T40, and it works fine if it is placed on a flat surface such as a desk. But when any sort of pressure is exerted on the case unevenly, the screen blanks out and freezes, which is an extremely aggravating problem. I have narrowed down the part of the case that seems to cause the blank out- it is below the left side of the keyboard, above the pentium sticker. Is there a component directly in this area that would cause the screen to short, and is this a common problem? Any help would be appreciated, I have never disassembled a laptop but would not be uncomfortable doing so. Thanks!

Chris

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  • Anonymous Mar 26, 2009

    My laptop has been doing the same thing its a compaq and it turns fuzzy for like a split second and then goes abck to normal but it always goes fuzzy no clue why it does that im not sure is its the computer or is its a virus??

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That is frequent on thinkpads, aftwer few years.

Because of a fault in the design , the motherboard inside get bent and the soldering joint ath the video chipset lose contact.

If the problem get worse you will be unable to use the computer, I have two like that here.

Try keeping the laptop always on a rigid surface , like a table. Despite the name, do not use it on your lap.

Even if you want to disassemble, you need to replace the whole motherboard to fix this , usually is not worth the repair.

Posted on Nov 21, 2008

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