Question about IBM ThinkPad T40 2373 Notebook
I have removed the dead battery to boot with AC power ut still refuses to boot,
Z light is the only light staying on
Check and make sure that the backlight on the screen is hasn't burned out. Do you see the POST/Setup screen at first? If not then that MAY be your problem.
Posted on Jul 30, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
A series boot problems
Aseries laptops are very good normally but don't boot up if there
is a device in the USB slot or a CD/DVD in the drive.
If it still refuses to POST, remove the AC Adapter, remove the battery and remove the hard drive.
Power the unit up without the hard drive and it should complete POST and complain that there is no hard drive. If that doesn't work remove AC adapter, ensure battery is disconnected and remove hard drive and RAM. Try again. If it still doesn't work, you have a mother board fault and it needs a service centre. www.Toshiba.com will help you out.
If it does work at one of the options, when you have closed the laptop down, replace the RAM first and test, then the Hard Drive.
Hope this fixes your problem.
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