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T40 T40p T41 T41p T42 T42p you
treat it as 24RF08
Locating the T4xx connection points
Switch the T4xx OFF.
You should have downloaded the hardware
Maintenance Manual already, if you have not done so,
Click on the hyperlink below to download the
PDF file containing the T43 Hardware Maintenance Manual, you will need to
install Adobe Acrobat Reader to view the manual, Adobe Acrobat is FREE and can
be obtained here -> Adobe
Downloads once you have downloaded the files, close the browser window to
return to this page.
Hardware
Maintenance Manual - ThinkPad T40, T40p, T41, T41p, T42, T42p
The 24RF08 eeprom is located right under the network card,
which is under the mouse touch pad, very simple to open, and very simple to
locate the eeprom as well.
Keep individual modules and their screws separate to make it easier to re
assemble it correctly
NOTE: you may have another eeprom installed at location U3, that other
eeprom may be a 93C46, just ignore it.
NOTE: VCC is NOT connected, the ThinkPad
supplies power to the eeprom later on we will switch on the TP to analyse
the eeprom.
The photo below shows a 24RF08 EEPROM from a DIFFERENT
MODEL ThinkPad with the Pomona clips attached to SCL and SDA pins.
See my page on Options
for Clips and Probes including making your own probes.
Assembling your TP
You need to re-assemble or partially re-assemble your TP
[depending on your chosen connection method] as you will have to have
it switched ON and running to read the eeprom.
Follow the Hardware Maintenance Manual [FRU System Board],
very carefully, double check screw type and size for each individual module.
Assemble the TP in the reverse order used to dismantle it.
If you have any questions, email Joe at
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