Acpi Thinkpad Device Support Under Windows 2000; Power-Saving Modes And System Indicators; Pc Card And Cardbus Devices, Plug-And-Play And Power Management Support - Lenovo ThinkPad 380E Setup Manual
Windows 2000 professional setup and technical guide
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ACPI ThinkPad Device Support under Windows 2000
The purpose of this section is to provide the user with more in-depth technical information
about some important aspects of Plug-and-Play and Power Management on ACPI-supported
ThinkPad models running windows 2000 Professional.
Power-saving modes and system indicators
While running Windows 2000 Professional on ACPI-supported ThinkPad models, various
power-saving "sleep" states can be enabled. The following table lists the supported "sleep"
states on ACPI-supported ThinkPad models and how to identify when the computer has
entered each "sleep" state:
Sleep State
Sleep State definitions on ThinkPad
models
S1
Lowest power saving-mode
(Standby)
Fastest wake-up latency
S3
Low power saving-mode
(Default-
Fast wake-up latency
Standby)
S4
Highest power saving-mode
(Hibernation)
Slowest wake-up latency
PC Card and CardBus devices, Plug-and-Play and Power Management support
Windows 2000 Professional supports most commonly used PC Card and CardBus devices
with their device drivers included in the operating system. This includes 16-bit and 32-bit
modem card, modem/LAN combination cards, LAN cards, ATA cards, and so on. If the card
is properly recognized and configured when inserted into the computer, its driver will be
loaded automatically by the operating system and you will not need to install another device
driver. If the card is recognized by Windows 2000 as an "unknown device", you will need to
obtain a Windows 2000-supported device driver from the device's hardware manufacturer.
Check with the Windows 2000 Hardware Compatibility List (HCL) to determine whether
your device is supported by the operating system. If not, contact the PC Card or CardBus
manufacturer to receive an updated Windows 2000-supported driver.
Here are some helpful tips when using PC Card and CardBus devices on your ThinkPad
computer while running Windows 2000 Professional:
When using some PC Card modems under Windows 2000, you may notice a power
management setting for the device listed in Device Manager. The Wake-On-Ring
feature might not work properly even if enabled. Because the operating system does
not support wakeup capability from Standby mode for an incoming call, this is a
current limitation for this release of Windows 2000.
Some CardBus LAN cards under Windows 2000 may report under its 'Power
Management' settings to ability to "bring the system out of Standby." This refers to
Wake-On-LAN . Regardless of this statement however, wakeup from Standby using
a CardBus LAN device is not supported by Windows 2000. P lanned support for this
capability is expected in future releases of Windows 2000.
System Indicator
Suspend mode indicator: on
Power on indicator: on
Suspend mode indicator: on
Power on indicator: off
Suspend mode indicator: off
Power on indicator: off
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