ThinkPad Edge E540 Maintenance Manual page 54

Table 8. Special keys (continued)
Description
Special key
Opens Computer.
Fn+B Has the same function as the Break key on a conventional keyboard.
Fn+K Has the same function as the ScrLK key on a conventional keyboard.
Fn+P Has the same function as the Pause key on a conventional keyboard.
Fn+S Has the same function as the SysRq key on a conventional keyboard.
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Hardware Maintenance Manual