Dell PowerEdge 2900 Bedienungsanleitung Seite 20

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20 Information Update
CPU Information Screen
Table 1-4 updates the description for the Demand-Based Power Management
option.
Integrated Devices Screen
Table 1-5 lists new Integrated Devices screen options.
Table 1-4. CPU Information Screen
Option Description
Demand-Based Power
Management
(Enabled default)
NOTE: Check your operating system documentation to
verify if the operating system supports this feature.
Enables or disables demand-based power management.
When enabled, the CPU Performance State tables are
reported to the operating system; when disabled, the CPU
Performance State tables are not reported to the operating
system. If any of the CPUs do not support demand-based
power management, the field becomes read-only, and is
automatically set to Disabled.
Table 1-5. Integrated Devices Screen Options
Option Description
Internal USB Port
(On default)
Enables or disables the system’s internal USB port.
OS Watchdog
Timer
(Disabled default)
NOTE: This feature is usable only with operating systems that
support WDAT implementations of the Advanced Configuration
and Power Interface (ACPI) 3.0b specification. Microsoft
®
Windows Server
®
2008 supports this feature, but Windows
Server 2003 does not.
Sets a timer that monitors the operating system for activity and
aids in recovery if the system stops responding. When this field
is set to Enabled, the operating system is allowed to initialize
the timer. When set to Disabled, the timer is not initialized.
I/OAT DMA
Engine
(Disabled default)
Enables or disables the I/O Acceleration Technology (I/OAT)
option. When set to Enabled, I/OAT reduces system CPU
usage for applications that use TCP by offloading part of TCP
receive operation to the DMA engine.
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