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I see a black screen when trying to boot up my t42. It works sometimes but most of the it doesn't. any ideas?

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How to turn on the wireless switch on my IBM T42


There isn't a switch on the T42. (I'm using one to write this). the Function (Fn) key toggles the adapters but only if the correct utility is loaded. That is on the lenovo site called 1qkcb9ww or 8jvu12ww. Not sure which controls those features. If Fn+F5 doesn't do it...
You otherwise usually get that message when there is a network adapter conflict and sometimes if the driver has become inactive which it does not too often. Try first disabling any other network adapters like Ethernet and maybe even the infrared network adapter though I doubt that could be it. Mine is disabled anyway. Do this in 'Network connections' from control panel for the Ethernet or with Device manager (Systems>hardware>device manager) if you never use a wired connection. If that doesn't help try reinstalling the drivers from the Lenovo site.
Andrew L.

Nov 22, 2011 | IBM ThinkPad T42 Notebook

1 Answer

My t42 laptop's screen froze the other day so i turned it off and when i turned it back on the screen stayed black and beeped four beeps then pause then four beeps then pause then four beeps then pause...


keep pushing f2 now youll see the page use arrow keys change your boot log f12 now restart it back up on a f12 now it going ask you do you want run windows go there.

Feb 05, 2011 | IBM ThinkPad T42 Notebook

2 Answers

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


thinkpad-t42-wont-boot.html">http://www.techsupportforum.com/hardware-support/laptop-support/234433-ibm-thinkpad-t42-wont-boot.html

Feb 17, 2010 | IBM ThinkPad T40 2373 Notebook

1 Answer

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.


Good luck.

Jan 14, 2010 | IBM ThinkPad T42 Notebook

1 Answer

Laptop has an error, and will not boot into last known good configuration. Will not boot into safe mode.


boot from the operating cd at the first R for repair press enter at the dos prompt " a black screen like " c:\ ect ect type this " chkdsk /r press enter ... leave a space between k and the /

after it finishes type fixboot it should be ok then

Dec 27, 2009 | IBM ThinkPad T42 Notebook

1 Answer

IBM thinkpad t42 boot up problem.


The most common reason is memory.

First, try to reseat (remove and reinsert).

If still a problem, test one module at a time.

Hope this helps.

Aug 17, 2009 | IBM ThinkPad T42 Notebook

1 Answer

IBM thinkpad t42 boot up problem.


The sympton is rather vague, but I suggest the following options, to be followed one by one, until one of them works for you.

1) Boot your system in Safe Mode (if Windows is your OS) by pressing F8 after the usual "beep" provided by the BIOS after it detects all is fine. If it boots up, which takes a little longer than usual, then your system is probably Ok, although it may have a configuration problem.
Reboot the machine from the shut down menu and hopefully it will work Ok. If not, then, depending on whether you have Windows Vista (or better), try:

2) Boot again pressing the F8 key, but this time locate the option that reads something like "Last known good configuration". Highlight it with the arrow keys and press Enter.
If you have System Restore set on your drive(s) your laptop should boot up normally.

3) The last option would be for you to go into your system BIOS and run at least a HD detection test, followed by a memory test, etc., but I would only recommend doing this if you know what you're doing. If not, ask a friend for help.

Aug 17, 2009 | IBM Thinkpad T40 Thinkpad T41 Thinkpad T42...

1 Answer

IBM A31 2652 Video garbled video at boot


This is very possibly a hardware problem, namely a crack in the motherboard. Sorry, no easy or cheap fix for it if that's the case.

Feb 18, 2009 | IBM ThinkPad T42 Notebook

1 Answer

Turns off autometically


How far does it get on the boot process? Does it open the operating system completely before shutting down? Do you get any error messages, and does it go to a black screen stating Windos wasn't shut down properly? Answer these and I'll have a better idea of what's going on.

Aug 26, 2008 | IBM ThinkPad T42 Notebook

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