IBM L40 SX Quick Reference page 78

3.8.3.2 Managing Power Usage
+------------------------------------------------------------------------+
¦ Key¦ Purpose
+----+----------------------+--------------------------------------------¦
¦ 5 ¦ Internal Device
¦ ¦ Power Off Time
¦ ¦
¦ ¦ Automatically turns
¦ ¦ off internal devices ¦
¦ ¦ and system power if
¦ ¦ no keyboard input or ¦
¦ ¦ other device
¦ ¦ activity occurs in a ¦
¦ ¦ specified time.
¦ ¦
¦ ¦ Hard disk drive is
¦ ¦ turned on when the
¦ ¦ system attempts to
¦ ¦ read or write to the ¦
¦ ¦ hard disk.
¦ ¦
¦ ¦ Pressing any key
¦ ¦ causes the display
¦ ¦ to turn on again;
¦ ¦ however, that
¦ ¦ keystroke is
¦ ¦ accepted by the
¦ ¦ system as input.
¦ ¦
¦ ¦ System power is
¦ ¦ resumed when, for
¦ ¦ example, the display ¦
¦ ¦ is lowered and
¦ ¦ raised or any other
¦ ¦ condition occurs.
¦ ¦ See page 3.5.2.
¦ ¦
¦ ¦ Other internal
¦ ¦ devices such as
¦ ¦ diskette drive
¦ ¦ automatically turn
¦ ¦ off when not in use. ¦
¦ ¦ No action is
¦ ¦ required by you to
¦ ¦ turn these devices
¦ ¦ on or off.
+----+----------------------+--------------------------------------------¦
¦ 6 ¦ System Speed
¦ ¦
¦ ¦ Minimizes power
¦ ¦ usage by changing
¦ ¦ the processing
¦ ¦ speed.
¦ ¦
¦ ¦ You can specify two
¦ ¦ values, one for the
¦ ¦ A (automatic) mode,
¦ ¦ the other for the M
¦ ¦ (manual) mode.
¦ ¦
¦ ¦ The value for the
¦ ¦ Auto mode becomes
¦ ¦ effective when the
¦ ¦ economy switch is
¦ ¦ set to A; the value
¦ ¦ for the Manual mode
¦ ¦ becomes effective
¦ ¦ when the economy
¦ ¦ switch is set to M.
¦ ¦
¦ ¦
¦ ¦
+------------------------------------------------------------------------¦
¦ Note: Default value is highlighted in the Option column.
+------------------------------------------------------------------------¦
¦ 7 ¦ Power Control for
¦ ¦ Communication
¦ ¦ Devices
¦ ¦
¦ ¦ You can determine
¦ ¦ whether power is
¦ ¦ supplied to each
¦ ¦ external device
PS/2 Model L40 SX Quick Reference
Managing Power Usage
¦ Option
¦
¦ Display off after:
¦
¦ 10 (1 through 20) mins
¦
¦
Hard disk off after:
¦
¦ 5 (1 through 15) mins
¦
¦
¦
¦ System power off after:
¦
¦ 20 (1 through 20) mins
¦
¦
¦
¦ Note: If 0 is specified, no automatic
¦ power-off is assumed.
¦
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¦
¦
¦
¦
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¦
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¦
¦
¦
¦
¦ Auto:
¦
¦ High Performance
¦ Long Battery Life
¦
¦
¦
¦ Note: If you select High Performance, use ¦
¦ of the AC Adapter is recommended.
¦
¦
¦
¦ Manual:
¦
¦ 20 MHz
¦ 10 MHz
¦ 5 MHz
¦
¦
¦
¦ Note: It is recommended that 20 MHz be
¦ specified if you use the serial
¦ port at a line speed of above 9600
¦ bps.
¦
¦ Onboard Parallel power:
¦
¦ On
¦ Off
¦
¦
¦
¦ Copyright IBM Corp. 1991
3.8.3.2 - 1
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