Question about IBM ThinkPad T40 2373 Notebook

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My Ibm t49 the display shuts off as soon i as i boot up help

Ny ibm t40 as soon as i i see the loading xp scrren the display shuts off and wont turn on please reply to hpitschmann@hotmail.com

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  • after open my laptop ifI movejust littel it isnotdisplay it means screen have withoiut graphics
  • other laptop it is not swtch on if we cant battery short
  • please send me information about it on my e-mail
  • montdifi@yahoo.com/gmail.com

Posted on Dec 23, 2007

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  • 77 Answers

There are several possibilities within two categories:

SOFTWARE (you are using MS, so this is more likely)
HARDWARE these symptoms can be caused by bad battery and/or bad PSU (AC Power Supply Unit)

Software: You may have a virus, or may have damaged the NT kernel, or some critical software components by installing cheap games or bad SW. Read the recovery instructions on your XP CD to boot and run recovery and/or utilities that might repair the laptop OS. If you have no CD, try booting and hitting F6 key after BIOS screen... then explore the options there. Next, try booting and hitting F8 key after BIOS screen... then explore the options there.

If there are no problems repaired or evident in software, you should remove the battery, plug in the PSU and try booting. If all goes well, your battery is probably bad. If NOTHING happens, then your PSU is definitely bad (or the PSU cable/jack/connection to your computer is bad)

Conversely, remove the PSU and boot only with the battery. If it boots up (or goes farther than it did before) then the battery may be low/damaged BECAUSE the PSU is bad. If your laptop does not even open/get at least to BIOS screen, then the battery is dead. Try recharging overnight with laptop off but plugged into AC. If it is the same in the morning, replace the battery.

Both the battery and PSU can be checked with a VTVM, to compare voltage/output levels, with the ratings on the labels

Posted on Dec 14, 2007

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