T42 thinkpad would not start . The battery and AC power
supply seem to be working fine. But everytime I start the laptop, there
is a blank screen..the hard drive icon also does not blink. However, if I persist and try starting it a a few dozen times, some time windows boots up
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Im very sorry to hear that, please follow these simple steps for you to be able to isolate the exact problem.
1. Removed the battery.
2. Connect the laptop directly to the power outlet without using the battery just for the meantime.
3. Turn on the laptop. If the laptop is able to power on, that means that the AC adapter is working fine as well as the DC port. If the laptop is not able to turn on, it maybe the AC adapter itself or the DC port.
4. Try to use another AC adapter if possible, make sure that that AC adapter is working fine. If the laptop is still not turning on, the problem is with the DC port itself. In that case, you will need to replaced the Motherboard itself.
Hope this will help...Thank you for using Fixya...
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.
Whops that sounds like a Mother Board Issue Common to IBMs.
What happens when you try to reload the O.S ? I would imagine it still shuts down. If over heats the computer will still turn on but not stay on, will shut down when the sensor on the CPU detectes excessive heat > 75 degrees F .
The problem is somewhere in the Power Supply flip flop Circuit System on the Motherboard most likely but thats academic!
You really cannot "repair" them, only replace them and usually that does not pay; the board costing more than the Computer is worth and Installing it is really a "Factory" Operation.
TIgar has a good selection of Levono Factor Rebuilt Notebooks (hint) lol :)
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
3. Put back the battery and plug back the AC adapter
4. Power ON the laptop as normal.
I need you to try to power it on while you press down firmly (really
press down) in the area just towards the front of the space bar and
just to the left of the touch pad assembly. Hold it down while it tries
to go through the entire power up sequence.
happy! second worked... this actualy work for me it boot it windows normaly, it went to the logging proces as normal, it seems that some cable for the lcd has been lose i dont know can you explain Ron what causes this