Question about IBM ThinkPad T20 2647 Notebook

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Ethernet network adapter not working on T20

No matter what I do, when I install a "network adapter" to get my ethernet connection in dorm room to work (none are installed in network connections already, but there IS an ethernet port on back so I'm assuming there's some sort of card already in here - what brand or kind it is I cannot seem to figure out) the device fails to start (ERROR CODE 10) and I am sooo frustrated. This is a several years old IBM, has been upgraded to Windows XP professional but I don't think any other alterations beyond a wireless Netgear card installed on the side have been made. Thanks.

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Also , not all IBM T20/T21 laptops shipped with a ethernet card fitted.
some had a modem only card. some a combined modem/ethernet card.

if the tiny LEDs light when plugged into a known active network connection then the card is present.
if they dont light up then it probably isnt present.

to check for the card..remove the panel secured by a single screw (just above center of the base)
the panel is in the top right quadrant of the bottom of the PC if you look at the bottom with the power connector at the top and the battery at the bottom.

remove the screw. open the panel.
there may or may not be a card present.
if there is if there is only a single white connector (with 2 small wires) then it is the Modem only card.
if there are 2 connectors one with 2 wires and another bigger with 8 wires..then you have the network card. check the connectors a fully pushed home.
its fiddly good luck

Posted on Nov 09, 2008

  • mt10 Oct 25, 2010

    THank you!!! This solved me hours of work figuring out why my "network adapter" was not detected. As a matter of fact... There's a RJ45 port, but no PCI card to handle it. Silly ol' computer...

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The ethernet connection will be list as Local Connection 3 or something while the wireless pcmcia card will be listed as Local Connection 4 or so. If that is not so then whatever is not listed is not recognized (needs a driver or is dead). If Add/Remove Hardware does not detect an ethernet card, onboard, then you will need to download the chipset drivers executable file which will include a LAN driver. Rarely but possible that ethernet circuit could be dead. You can get a pcmcia ethernet card with an RG45 connection for a broadband connection.

Posted on Nov 09, 2008

Thanks - nobody yet has been able to tell me the difference between having that port where an ethernet cable fits and actually having the card installed; I'm unsure about screwing off the top of the computer ... but I KNOW those lights have never lit up and that my network connection is good as everyone else on it seems to be able to connect no problem. Thanks again; if I find I DONT have one; can I add one in? I'd like to be able to use this LAN.

Posted on Nov 10, 2008

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