The T40 does not have a switch to turn the wireless card, the correct wireless driver only needs to be installed.
The same model ThinkPads can have several different video and audio drivers and unless you know exactly which one is installed in your ThinkPad, you need to download all the drivers and install each driver until you find the right driver.
When you download the drivers, write down the device driver and it’s file name so you have a record of which driver you are installing and which directory the unzipped files are located on your hard drive.
Go to the IBM/Lenovo WEB site - support/download page and download the latest Windows XP or Vista device drivers for your model computer, Use this link: -
http://www-307.ibm.com/pc/support/site.wss/product.do?template=%2Fproductselection%2Flandingpages%2FbrowseByProductLandingPage.vm&sitestyle=lenovo&brandind=10&validate=true
You can download the various drivers and then you click on and run the various driver files, they will then unzip and expand into a sub folder on C:\drivers Then install the various drivers from this folder (run the set-up file).
SOURCE: IBM Thinkpad t40 black screen
Chips DO get loose and what you're experiencing is a common problem with IBM T40's. The solder that holds the graphics processor to the motherboard is cracked and no longre consistantly makes a good connection. This problem can only permanently be resolved with a new motherboard, or reflowing the solder of the GPU chip on the old one with a heat gun. Do a search for "thinkpad solder reflow" in any search engine.
Good luck.
SOURCE: Startup Password IBM Thinkpad T40
please try this http://www.ja.axxs.net/unlock/
and http://www.tech-faq.com/ibm-thinkpad-bios-password.shtml
i hope it helps and i would suggest that you take someone's help if you find it difficult to tinker with the compu!
regards!
SOURCE: IBM THINKPAD T43. I can find the switch for my ibm thinkpad T43
Are you sure you have a wire card installed? If so, then try this:
Note:
If the card has a exclamation mark over a yellow background, then this
is an indication that the card is experiencing a problem. Go to Driver
download step 5.
It is possible to disable the transmitter of the wireless card without Device Manager showing any problems.
Note: Follow the instructions provided to enable wireless card.
If you double-click the previously mentioned system tray icon, the
configuration utility of the wireless card will appear. This utility
will be able to show the status of the wireless card, showing what
channel the card is using and what signal strength is being received.
It may be difficult to maintain a connection if signal strength is low
due to either interference or distance. For example, interference can
be caused by 2.4GHz cordless phones, other Access Points in the area,
and physical structures such as load bearing walls or metal partitions.
Note:
The utility can be used to configure the wireless card settings, but if
using Windows XP Zero Configuration or Access Connections, you will
need to use those programs to actually configure the wireless card as
they will overwrite the setting of the utility.
SOURCE: ibm thinkpad t42 switch for wireless network
How do I get my wireless network on in my IBM T 42
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