Lenovo ThinkPad T420i - Manual (Page 38)

The following tables list CRUs for your computer and tell where to find the
replacement instructions.
Table 1. Self-service CRUs
Setup
Instructions User Guide Online
Hardware
Maintenance
Manual
AC adapter X
Power cord for AC adapter X
TrackPoint ® cap X
Battery X X X
Memory X X
Storage device (HDD or
SSD) X X
Keyboard X X
Ultrabay™ device X X
Table 2. Optional-service CRUs
Setup
Instructions User Guide Online
Hardware
Maintenance
Manual
PCI Express Mini Card for
wireless LAN/WiMAX X X
PCI Express Mini Card for
wireless WAN X X
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Safety and Warranty Guide