Question about IBM ThinkPad T30 2366 Notebook

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Motherboard Problem when it is switching ON all LED's starts ligning and getting off exept power led. i saw this problem on lot of ibm thinkpad laptop models...can u help me to fix this problem on motherboard...and also tell me that which components i have to check and replace..is this problem on the power section..i think it is a common problem on thinkpad.

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  • Praveen jolly
    Praveen jolly Dec 08, 2007

    Yes i know to use multimeter.

  • Praveen jolly
    Praveen jolly Dec 08, 2007

    the fan continuesly running

  • brnet Dec 22, 2007

    laptop not power on

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2 Answers

When you turn it on hold your multimeter onto the power to the mother board the voltage rating should be on the power supply to set your meter when it shuts down see if you still have power to the board if you do you know that the power supply is good also does the fan run on the power supply when you turn it on. please check these things then let me know if the fan dont run your problem is probably the power supply overheating

Posted on Dec 08, 2007

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  • 362 Answers

Let me know if you know how to use a multimeter

Posted on Dec 08, 2007

  • james kilgore
    james kilgore Dec 08, 2007

    if you have two sticks of memory (ram) take out one at a time to check them if ram goes out your computer will not boot, this is the same with your modem, and video even on board,. it could be your CPU, see if the fan runs on the CPU when you turn it on be careful not to get electricuted when turning on the thing with the cover off and be careful hooking up power if you cant use the battery. if you use the multimeter to trace the path to where the current stops that could possibly lead you to the problem. but try the ram change first.

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Check power adapter’s DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced.
If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard.
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