DANGER
UnlesshotswapisallowedfortheFRUbeingreplaced,doasfollowsbeforeremovingit:poweroffthe
computer,unplugallpowercordsfromelectricaloutlets,removethebatterypack,anddisconnectany
interconnectingcables.
6ThinkPadT520,T520i,andW520HardwareMaintenanceManual
