Question about IBM ThinkPad T42 Notebook

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IBM Thinkpad T42 doesn't power up

Hi, My T42 doesn't power up either from the battery or from Wall Outlet. It is totally blank almost like it is dead. I removed the battery and tried to power it from the Wall. But no pulse. When I hold the power button down to power ON it gives me a clicking sound and the the light on the power indications flickers accordingly. Any thoughts?.

Thanks

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  • brunybear Dec 01, 2008

    the computer do not star, the monitor is black.

  • rhsmsw Dec 08, 2008

    Last night I was working on my trusty IBM T42 like I have been doing for the last few years. all of the sudden all went dark and I have not been able to turn it on sicnce. I took the battery out, pluged it in a wall outlet, Nothing, put the batter back in and unplugged it, Nothing! Put the batteryy in, pluged it in ? Nothing. Unplugged the cable battdry in Nothing. Please help!!!!

  • Anonymous Dec 24, 2008

    My T42 doesn't power up. IBM service says, have to replace motherboard. But I can't afford. I ll be repairing it myself. Someone have the schematic, of T42?


  • m_ghosal2000 Jan 07, 2009

    I have the same problem and my T42 doesn't power up, I have taken out the motherboard, but looking for the schematic to repair it.

  • m_ghosal2000 Jan 07, 2009

    I hav the same problem. I have ripped out the motherboard, but without the schematic i cannot repair. Can some one help to get the T42 schamatic.

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  • Master
  • 558 Answers

Moherboard failure I am sorry but al these descritions are descriptive of bad motherboards you can find good replaccements for them on ebay

Posted on Dec 14, 2008

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My IBM T40 boots to a black screen with the "z"(light at top to right of power.


Try these steps:

1. Remove battery and unplug AC adapter
2. Press power on button for 30 seconds or so (one min is also too)
3. Attach battery and plug into wall
4. Power "ON" as normal

If you are still getting the "Z" and a black screen then I would have the video card or hard drive looked at and replaced. Start with the video card and then look at the hard drive


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My previously healthy Thinkpad T42, will not post.


Hi,
The Thinkpad T42 doesn't have a reset button on it like the older IBM's used to.

There could be a problem with the battery. With the machine turned off remove AC power and then the battery. Plug in AC power again and see if the laptop will boot without the battery.
If it boots let it load up as normal and then shut it down again, reinsert the battery and try to boot it up. If it boots fine, if not then there is a problem with the battery.

Please post back if you need anymore advice.


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Jan 14, 2010 | IBM ThinkPad T42 Notebook

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IBM Thinkpad T42. About 1hr ago went black-dead. When the power supply is plugged in there is no icon illuminated. No power reaching anything. Recently have had some fan-error warnings and have been...


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.
This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.

Dec 02, 2009 | IBM ThinkPad T42 Notebook

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IBM t42 comes on, beeps twice and goes off, connected and battery


Yes it is the fan, get a can of compressed air and clean the air vents and the CPU fan with that, also i would check into the CMOS battery as it could be dead and needs replacing.
As the laptop starts up hit F1 when you see the IBM logo and check the date and time, that will be a clear indicator IF the CMOS battery is dead because it will not be the right date and time, it should however let you into windows if you put the date and time right (it may take a couple of attempts)


Good luck

Jun 19, 2009 | IBM ThinkPad T42 Notebook

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Computer works on AC adapter but battery does not charge


hi,there might be the issue with dc in cable(cable from jack to m/b) or the inverter board.

May 29, 2009 | IBM ThinkPad T42 Notebook

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T42 is not starting


Try doing a manual system reset. To do this:
1. Remove battery and unplug AC adapter.
2. Press and HOLD power ON button for 30secs. at least
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Jan 17, 2009 | IBM ThinkPad T42p Notebook

1 Answer

Shuts down autometically


Also, have you changed anything lately? and, Did this just start happening out of the blue, or did something happen to cause this, ie... power failure, kicked the plug out, ran the battery completely dead, overheated, etc...?

Aug 26, 2008 | IBM ThinkPad T42 Notebook

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