NEC Express5800 Series Maintenance Manual page 103

Chapter 2 Useful Features
(d) Advanced Performance Tuning Options Menu
When you select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance
Options > Advanced Performance Tuning Options from the System Utilities, the Advanced Performance
Tuning Options menu appears.
For details about the options, see the table below.
Option
Processor Jitter Control
Processor Jitter Control
Frequency
Core Boosting
(e) Advanced Power Options Menu
When you select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance
Options > Advanced Power Options from the System Utilities, the Advanced Power Options menu appears.
For details about the options, see the table below.
Option
Redundant Power Supply
Mode
Parameter
[Disabled]
Auto-tuned
Manual-tuned
[0]-X
Enabled
[Disabled]
Parameter
[Balanced Mode]
High Efficiency Mode (Auto)
High Efficiency Mode (Odd Supply Standard)
High Efficiency Mode (Even Supply Standard)
Express5800/R120h-1E, R120h-2E Maintenance Guide
Description
Processor Jitter Control allows the customer to
manage processor frequency variance to do
technologies such as Turbo which vary the
frequency based on power, thermals, and active
cores. When configured for Auto-tuned, the
platform will monitor frequency variance and
automatically make adjustments to minimize
variance over time. When configured for
Manual-tuned, the customer can choose to attempt
to operate the processor at a fixed frequency and
can select lower or higher frequencies statically.
Processor Jitter Control Frequency allows the
customer to stipulate the starting frequency in the
Auto-tuned mode, or the desired frequency in the
Manual-tuned mode. The input frequency is in units
of Megahertz. System firmware will adjust the
frequency to the nearest higher intermediate
frequency supported by the processor if the input
frequency is not supported.
This enables or disables the core boost technology
that enhances the processor performance. This
appears only when the processor that supports this
function is mounted.
[ ]: Default setting
Description
Use this option to configure how
the system handles redundant
power supply configurations.
Balanced Mode shares the
power delivery equally between
all installed power supplies. All
High Efficiency Mode options
provide the most power efficient
operation with redundant power
supplies by keeping half of the
power supplies in standby mode
at lower power usage levels. The
High Efficiency Mode options
enable the system to select
which power supply to place in
standby. Auto enables the
system to select between the odd
or even power supply based on a
semi-random distribution within a
group of systems.
[ ]: Default setting
1. System Utilities
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