Lenovo ThinkCentre M57e - Manuel (Page 28)

v If the voltage supply range is 100–127 V AC, set the switch to 115 V.
v If the voltage supply range is 200–240 V AC, set the switch to 230 V.
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2. Connect the keyboard cable to the appropriate keyboard connector, either
the standard keyboard connector 1 or the Universal Serial Bus (USB)
connector 2 .
Note: Some models will have keyboards with a fingerprint reader. After
you setup and turn on your computer, refer to the Access Help online
help system for information about your fingerprint reader. See “Access
Help” on page 34 for instructions on how to open the online help system.
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Safety and Warranty Guide