Dell PowerEdge R920 Dell PowerEdge R920 System Owners Manual - Page 23

SATA Settings Screen, Processor Bus Speed - power consumption

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Menu Item Description Hardware Prefetcher Allows you to enable or disable hardware prefetcher. By default, the Hardware Prefetcher option is set to Enabled. DCU Streamer Prefetcher Allows you to enable or disable Data Cache Unit streamer prefetcher. By default, the DCU Streamer Prefetcher option is set to Enabled. DCU IP Prefetcher Allows you to enable or disable Data Cache Unit IP prefetcher. By default, the DCU IP Prefetcher option is set to Enabled. Execute Disable Allows you enable or disable execute disable memory protection technology. By default, the Execute Disable option is set to Enabled. Logical Processor Idling Allows you to enable or disable the OS capability to put logical processors in the idling state in order to reduce power consumption. By default, the option is set to Disabled. Number of Cores per Allows you to control the number of enabled cores in each processor. By default, the Number Processor of Cores per Processor option is set to All. Processor 64-bit Support Specifies if the processor(s) support 64-bit extensions. Processor Core Speed Displays the maximum core frequency of the processor. Processor Bus Speed Displays the bus speed of the processors. NOTE: The processor bus speed option displays only when all four processors are installed. Processor 1 NOTE: The following settings are displayed for each processor installed in the system. Family-ModelStepping Brand Level 2 Cache Level 3 Cache Number of Cores Displays the family, model and stepping of the processor as defined by Intel. Displays the brand name reported by the processor. Displays the total L2 cache. Displays the total L3 cache. Displays the number of cores per processor. SATA Settings Screen Menu Item Embedded SATA Port A Description Allows the embedded SATA to be set to Off, ATA, AHCI, or RAID mode. By default, Embedded SATA is set to AHCI Mode. Auto enables BIOS support for the optical device attached to SATA port A. By default, Port A is set to Auto. 23

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Menu Item
Description
Hardware Prefetcher
Allows you to enable or disable hardware prefetcher. By default, the
Hardware Prefetcher
option is set to
Enabled
.
DCU Streamer
Prefetcher
Allows you to enable or disable Data Cache Unit streamer prefetcher. By default, the
DCU
Streamer Prefetcher
option is set to
Enabled
.
DCU IP Prefetcher
Allows you to enable or disable Data Cache Unit IP prefetcher. By default, the
DCU IP
Prefetcher
option is set to
Enabled
.
Execute Disable
Allows you enable or disable execute disable memory protection technology. By default, the
Execute Disable
option is set to
Enabled
.
Logical Processor
Idling
Allows you to enable or disable the OS capability to put logical processors in the idling state in
order to reduce power consumption. By default, the option is set to
Disabled
.
Number of Cores per
Processor
Allows you to control the number of enabled cores in each processor. By default, the
Number
of Cores per Processor
option is set to
All
.
Processor 64-bit
Support
Specifies if the processor(s) support 64-bit extensions.
Processor Core
Speed
Displays the maximum core frequency of the processor.
Processor Bus Speed
Displays the bus speed of the processors.
NOTE:
The processor bus speed option displays only when all four processors are
installed.
Processor 1
NOTE:
The following settings are displayed for each processor installed in the system.
Family-Model-
Stepping
Displays the family, model and stepping of the processor as defined by Intel.
Brand
Displays the brand name reported by the processor.
Level 2 Cache
Displays the total L2 cache.
Level 3 Cache
Displays the total L3 cache.
Number of Cores
Displays the number of cores per processor.
SATA Settings Screen
Menu Item
Description
Embedded SATA
Allows the embedded SATA to be set to Off, ATA, AHCI, or RAID mode. By default, Embedded
SATA is set to
AHCI Mode
.
Port A
Auto enables BIOS support for the optical device attached to SATA port A. By default, Port A is
set to
Auto
.
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