Compaq.com - Compaq Presario Maintenance and Service Guide - 2250, 2410 ES, 2510, and 4240 ES Series
United States December 10, 2002
Maintenance & Service Guide
Presario 2250 Series
2510, 2410 ES & 4240 ES Personal Computers
|
Power Management Features
2250 Series,
2410ES, 2510
4240 ES
Power
Management
Compaq Presario 2250, 2510, 2410 ES and 4240 ES Series Personal Computers
support the following power management capabilities.
■
Sleep (standby)
■
APM 1.2
Select the power management features for your operating system:
.
Windows 95
■
The system enters Sleep when
Windows Suspend
is selected, when the
Sleep button is pressed, or when the system times out.
■
The system supports the Medium power setting, which allows the unit to
enter Sleep mode without losing its network connection.
■
In the Windows 95 desktop, select
Start,
then
Shutdown
to put the
system into Sleep mode. The system can then be turned off or left in
Sleep. When the Sleep button is pressed, the system reboots to the
Windows 95 Desktop.
■
The default setting for Sleep timeout is 30 minutes. The Sleep timeout
value is set in the BIOS Setup.
■
The modem wakes up the system on incoming calls when configured to
expect a call.
■
When an audio CD is playing, the system will time out and enter Sleep
after 30 minutes, but audio play will not be interrupted. If the Sleep button
is pressed or if Suspend is selected, CD play is suspended and the unit
enters Sleep. CD play resumes on the next track when the system wakes.
■
The software and hardware volume control buttons are synchronized.
States of Power Management
Power management can be defined by three distinct power states in which the
computer operates: On, Off, and Sleep. The following table describes the energy
states and lists the power consumption of each state:
Power Management States
Energy State Description
Power Consumption
On
Power is available to the
system and the
On/Off
switch
in the back is in the
ON
position. The power status
light is green.
35 Watts Avg., 75 Watts Max
(2250 Series, 2510, 2410 ES)
55 Watts Avg., 110 Watts Max
(4240 ES )
Off
Power is not available to the
system and the
On/Off
switch
is in the
OFF
position. The
power status light is not lit.
0 Watts
Sleep
Power is available to the
system, the
On/Off
switch in
the back is in the
ON
position
and the computer is in a low
power/standby mode. The
power status light is amber.
> 30 Watts (4240ES Series)
20 Watts (2250 Series, 2510,
& 2410 ES)
Windows 98
■
Power Status Lights
. You can quickly tell the sleep condition of the system by glancing at
the Power Status Lights.
■
Automatic standby. In Windows 98 there are different Power Schemes under which the
system goes into Sleep mode automatically when it times out. The optional settings for
Windows 98 are
Home/Office Desk
,
Portable/Laptop
and
Always On
. The system
supports different levels of power management for varying patterns of computer use.
■
Default and Adjustable timeout settings. The default setting for Sleep timeout is 30 minutes.
The Sleep timeout value can be set in the
Control Panel
by clicking on the
Power
Management
icon. At the
Properties
screen, click, in turn, on
System Standby
,
Turn off
Monitor
, and
Turn off Hard Disk
to set the time before the system goes to sleep.
■
Manual standby. To manually put your computer into sleep mode in the Windows 98 desktop,
press the
Instant On
button (on the CPU) or the
Sleep
button (keyboard). The power status
light on the CPU will light to show that Sleep mode is activated.
■
Other manual standby options. Another way to put your computer into sleep mode manually
under Windows 98 is to select
Start,
then
Shutdown
. Select
Standby
from the list of
choices to put the system into Sleep mode. The system can then be turned off or left in
Sleep. When the Sleep button is pressed, the system reboots to the Windows 98 Desktop.
■
No audio CD interruption. When an audio CD is playing, the system will time out and enter
Sleep after 30 minutes or the set time, but audio play will not be interrupted. If either the
Instant On
or the
Sleep
button is pressed, CD play is suspended and the unit enters Sleep.
CD play resumes on the next track when the system wakes.
■
Synchronized software and hardware volume control buttons.
States of Power Management
Power management can be defined by three distinct power states in which the computer operates:
On, Off, and Sleep. The following table describes the energy states and lists the power consumption
of each state:
Power Management States
Energy State
Description
Power Consumption
On
Power is available to the system and
the
On/Off
switch in the back is in
the
ON
position. The power status
light is green.
64 Watts Avg., 110 Watts Max
Off
Power is not available to the system
and the
On/Off
switch is in the
OFF
position. The power status light is not
lit.
0 Watts
Sleep
Power is available to the system, the
On/Off
switch in the back is in the
ON
position and the computer is in a
low power/standby mode. The power
status light is amber.
23 Watts
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