Dell PowerEdge R840 EMC Installation and Service Manual - Page 28

SATA Settings

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Option Description transition into a lower power idle state. This option can only be enabled if the operating system supports it. It is set to Disabled by default. NOTE: This feature is not supported if CPU Power Management is set to Maximum Performance. Configurable TDP Enables you to configure the TDP level. The available options are Nominal, Level 1 and Level 2. This option is set to Nominal by default. NOTE: This option is only available on certain stock keeping units (SKUs) of the processors. x2APIC Mode L2 RFO Prefetch Enables or disables the x2APIC mode. This option is set to Enabled by default. Enables or disables the L2 RFO (Read For Ownership) prefetch. This option is set to Enabled by default. The RFO is the process of reading a cache line from the memory into the cache before it can be written to. NOTE: This feature is supported only when four processors are installed. Dell Controlled Turbo Controls the turbo engagement. Enable this option only when System Profile is set to Performance. NOTE: Depending on the number of installed CPUs, there might be up to four processor listings. Dell AVX Scaling Technology Number of Cores per Processor Process Core Speed Process Bus Speed Processor n Enables you to configure the Dell AVX scaling technology. This option is set to 0 by default. Controls the number of enabled cores in the processor. Under certain circumstances, you may see limited performance improvements to Intel Turbo Boost Technology and benefits from potentially larger shared caches, when you reduce the number of enabled cores. Most computing environments tend to benefit more from larger number of processing cores, so you must carefully weigh the disabling of cores to gain nominal performance enhancements. Displays the core speed of the processor(s). Displays the bus speed of the processor(s). The following settings are displayed for each processor installed in the system: Option Description Family-ModelStepping Specifies the family, model, and stepping of the processor as defined by Intel. Brand Specifies the brand name. Level 2 Cache Specifies the total L2 cache. Level 3 Cache Specifies the total L3 cache. Number of Cores Specifies the number of cores per processor. Maximum Memory Specifies the maximum memory capacity per processor. Capacity Microcode Specifies the microcode. SATA Settings You can use the SATA Settings screen to view the SATA settings of SATA devices and enable SATA and PCIe NVMe RAID mode on your system. View SATA Settings To view the SATA Settings screen, perform the following steps: Steps 1. Turn on, or restart your system. 28 Pre-operating system management applications

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Option
Description
transition into a lower power idle state. This option can only be enabled if the operating system supports it. It is set
to
Disabled
by default.
NOTE:
This feature is not supported if CPU Power Management is set to Maximum Performance.
Configurable TDP
Enables you to configure the TDP level. The available options are
Nominal
,
Level 1
and
Level 2
. This option is set
to
Nominal
by default.
NOTE:
This option is only available on certain stock keeping units (SKUs) of the processors.
x2APIC Mode
Enables or disables the x2APIC mode. This option is set to
Enabled
by default.
L2 RFO Prefetch
Enables or disables the L2 RFO (Read For Ownership) prefetch. This option is set to
Enabled
by default. The
RFO is the process of reading a cache line from the memory into the cache before it can be written to.
NOTE:
This feature is supported only when four processors are installed.
Dell Controlled
Turbo
Controls the turbo engagement. Enable this option only when
System Profile
is set to
Performance
.
NOTE:
Depending on the number of installed CPUs, there might be up to four processor listings.
Dell AVX Scaling
Technology
Enables you to configure the Dell AVX scaling technology. This option is set to
0
by default.
Number of Cores
per Processor
Controls the number of enabled cores in the processor. Under certain circumstances, you may see limited
performance improvements to Intel Turbo Boost Technology and benefits from potentially larger shared caches,
when you reduce the number of enabled cores. Most computing environments tend to benefit more from larger
number of processing cores, so you must carefully weigh the disabling of cores to gain nominal performance
enhancements.
Process Core
Speed
Displays the core speed of the processor(s).
Process Bus
Speed
Displays the bus speed of the processor(s).
Processor n
The following settings are displayed for each processor installed in the system:
Option
Description
Family-Model-
Stepping
Specifies the family, model, and stepping of the processor as defined by Intel.
Brand
Specifies the brand name.
Level 2 Cache
Specifies the total L2 cache.
Level 3 Cache
Specifies the total L3 cache.
Number of Cores
Specifies the number of cores per processor.
Maximum Memory
Capacity
Specifies the maximum memory capacity per processor.
Microcode
Specifies the microcode.
SATA Settings
You can use the
SATA Settings
screen to view the SATA settings of SATA devices and enable SATA and PCIe NVMe RAID mode on
your system.
View SATA Settings
To view the
SATA Settings
screen, perform the following steps:
Steps
1.
Turn on, or restart your system.
28
Pre-operating system management applications