Blinks for three times: The computer is initially connected to power.
On: The computer is on (in normal mode).
Off: The computer is off or in hibernation mode.
Blinks slowly: The computer is in sleep mode.
Blinks fast: The computer is entering hibernation mode.
Rear view
1
Fan louvers
3
Lenovo OneLink connector
5
Audio connector
1
: The indicator in the ThinkPad logo and the indicator in the center of the power button show the system
status of the computer.
Blinks for three times: The computer is initially connected to power.
On: The computer is on (in normal mode).
Off: The computer is off or in hibernation mode.
Blinks slowly: The computer is in sleep mode.
Blinks fast: The computer is entering hibernation mode.
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Hardware Maintenance Manual
6
1
2
3
4
5
2
ac power connector
4
Always On USB 3.0 connector
6
System-status indicator
1