Question about IBM ThinkPad T42 Notebook

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IBM T 42 - Not starting

I am not able to start the laptop. When I switch it on, the lights come on and in a second two lights - battery indicator and the one next to it - stay on...others go off. The laptop does not get booted. Nothing comes on screen. Have checked the Power Cable, battery. both are fine. What should I do? To me it appears it fails after doing keyboard test...

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Re: IBM T 42 - Not starting

If the laptop is not even getting to boot the hard drive, then their may be a problem some where on the motherboard and it may need to be replaced. Before replacing the motherboard, there are a few things you can try. 1) If you have extra memory, try swapping in new memory and see if the laptop boots then. 2) Try disconnecting all peripherals and add-ons and see if the laptop boots then.

Posted on Oct 16, 2006

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My Lenovo ThinkPad T61 has the indicator light that it is plugged in and that the battery is charging. The computer is also off. But every time I press the power button to turn it on the both lights go off...

Try to start the laptop without battery (remove the battery and plugh the adapter and switch on) if problem persists. Take it to the Service center , Becose your laptop motherboard may have some kinda SHORTS. best of luck

Jan 22, 2011 | IBM Lenovo ThinkPad T400 7417 Notebook

1 Answer

IBM ThinkPad T30 2366 not start without battery

It is NOT Battery or Power Supply it is your laptop itself has gone faulty... You need to troubleshoot the Motherboard, hard Drive etc, to find the exact problem that will allow you laptop to start. A laptop, will go, with just the power supply, and NO battery, if it doesn't either Power Supply is faulty, regardless of lights, OR the laptop's motherboard or hard drive is faulty, you must isolate problem.

Feb 26, 2010 | IBM ThinkPad T30 2366 Notebook

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When i turn the laptop on it just beeps several times and the battery and the circle with a Z looking thing light up.

Ok, the tilted-Z-in-a-circle represents the power indicator. As far as I know the power indicator is orange while the battery level is below 60% and charging, and green above 60% and charging. When the batery level is above 90% the power indicator starts blinking (green blinking) to let you know that the battery is almost fully charged.

Please try to turn on the laptop without the battery attached and secondly without the power cable attached. Does the laptop still beeps?

If yes, this could indicate a failure of the battery / charger / mainboard charging bridge.

First, if the battery starts to fail, you should be able to start the laptop by removing the battery. If this helps then you have to buy a replacement one.

Second, check the power the charger outputs (by using a voltmeter) and compare the voltmeter reading with the power adapter specifications (read the sticker on the power adapter). If there is a difference of more than 1-2 volts then it means that the power adapter is toasted. Buy a new one and everything should be ok.

Third - if the mainboard charging bridge has problems - this can only be investigated by a laptop service specialist. It can be fixed either by replacing a passive part or by replacing the motherboard.

The beeps you hear can be a code by which the laptop tries to tell what the problem is.Please describe the beeps and the timeout between them(e.g.: beeeeeep-------------bep---bep---bep -- this is the signal that the VGA adapter is no longer recognized).

Please rate this solution to keep the good answers comming!

Good luck with your tabled PC !

Dec 04, 2009 | IBM ThinkPad T43 Notebook

1 Answer

Ibm t30 laptop has no video at start up

Try doing a hard reboot.

Unplug AC and remove battery.
Press and hold POWER for 30 seconds.
Plug in AC.
Turn on.
Upon bootup insert battery.

If this does not work I regret to say the graphics card is busted.

Apr 26, 2009 | IBM Thinkpad T30 Notebook

1 Answer

Startup Problem

The power socket could be loosing cause this kind problem, must re-solder the socket on PCB of motherboard by component level repair tech.

Nov 27, 2008 | IBM ThinkPad R51 Notebook

2 Answers

IBM T21 doesn't start

try to start it with the battery out by pluging it straight, the battery is dead and its causing problems

Mar 13, 2008 | IBM ThinkPad T21 2647 Notebook

2 Answers

Boot Problem

try to insert the battery charger into the laptop without the battery.

Dec 24, 2007 | IBM ThinkPad T30 2366 Notebook

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