Dell PowerEdge R450 Bedienungsanleitung

Dell EMC PowerEdge R450

BIOS and UEFI Reference Guide

Part Number: E74S

Regulatory Type: E74S001

December 2021

Rev. A02

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid

the problem.

WARNING: A WARNING indicates a potential for property damage, personal injury, or death.

trademarks may be trademarks of their respective owners.

Chapter 1: Pre-operating system management applications...........................................................4

System Setup....................................................................................................................................................................... 4

System BIOS................................................................................................................................................................... 5

iDRAC Settings utility................................................................................................................................................. 24

Device Settings............................................................................................................................................................ 24

Dell Lifecycle Controller................................................................................................................................................... 24

Embedded system management..............................................................................................................................24

Boot Manager.....................................................................................................................................................................24

PXE boot............................................................................................................................................................................. 25

Contents

Contents 3

Pre-operating system management

applications

You can manage basic settings and features of a system without booting to the operating system by using the system firmware.

Options to manage the pre-operating system applications

You can use any one of the following options to manage the pre-operating system applications:

●System Setup

●Dell Lifecycle Controller

●Boot Manager

●Preboot Execution Environment (PXE)

Topics:

•System Setup

•Dell Lifecycle Controller

•Boot Manager

•PXE boot

System Setup

Using the System Setup option, you can configure the BIOS settings, iDRAC settings, and device settings of the system.

You can access system setup by using any one of the following interfaces:

●Graphical User interface — To access go to iDRAC Dashboard, click Configurations > BIOS Settings.

●Text browser — To enable the text browser, use the Console Redirection.

To view System Setup, power on the system, press F2, and click System Setup Main Menu.

NOTE: If the operating system begins to load before you press F2, wait for the system to finish booting, and then restart

the system and try again.

The options on the System Setup Main Menu screen are described in the following table:

Table 1. System Setup Main Menu

Option Description

System BIOS Enables you to configure the BIOS settings.

iDRAC Settings Enables you to configure the iDRAC settings. The iDRAC

settings utility is an interface to set up and configure

the iDRAC parameters by using UEFI (Unified Extensible

Firmware Interface). You can enable or disable various

iDRAC parameters by using the iDRAC settings utility. For

more information about this utility, see Integrated Dell

Remote Access Controller User’s Guide at www.dell.com/

poweredgemanuals.

Device Settings Enables you to configure device settings for devices such as

storage controllers or network cards.

Service Tag Settings Enables you to configure the System Service Tag.

4 Pre-operating system management applications

System BIOS

To view the System BIOS screen, power on the system, press F2, and click System Setup Main Menu > System BIOS.

Table 2. System BIOS details

Option Description

System Information Provides information about the system such as the system model name, BIOS

version, and Service Tag.

Memory Settings Specifies information and options related to the installed memory.

Processor Settings Specifies information and options related to the processor such as speed and

cache size.

SATA Settings Specifies options to enable or disable the integrated SATA controller and ports.

NVMe Settings Specifies options to change the NVMe settings. If the system contains the

NVMe drives that you want to configure in a RAID array, you must set both

this field and the Embedded SATA field on the SATA Settings menu to

RAID mode. You might also need to change the Boot Mode setting to UEFI.

Otherwise, you should set this field to Non-RAID mode.

Boot Settings Specifies options to specify the Boot mode (BIOS or UEFI). Enables you to

modify UEFI and BIOS boot settings.

Network Settings Specifies options to manage the UEFI network settings and boot protocols.

Legacy network settings are managed from the Device Settings menu.

NOTE: Network Settings are not supported in BIOS boot mode.

Integrated Devices Specifies options to manage integrated device controllers and ports, specifies

related features, and options.

Serial Communication Specifies options to manage the serial ports, its related features, and options.

System Profile Settings Specifies options to change the processor power management settings, memory

frequency.

System Security Specifies options to configure the system security settings, such as system

password, setup password, Trusted Platform Module (TPM) security, and UEFI

secure boot. It also manages the power button on the system.

Redundant OS Control Sets the redundant OS information for redundant OS control.

Miscellaneous Settings Specifies options to change the system date and time.

System Information

To view the System Information screen, power on the system, press F2, and click System Setup Main Menu > System

BIOS > System Information.

Table 3. System Information details

Option Description

System Model Name Specifies the system model name.

System BIOS Version Specifies the BIOS version installed on the system.

System Management Engine Version Specifies the current version of the Management Engine firmware.

System Service Tag Specifies the system Service Tag.

System Manufacturer Specifies the name of the system manufacturer.

System Manufacturer Contact Information Specifies the contact information of the system manufacturer.

Pre-operating system management applications 5

Table 3. System Information details (continued)

Option Description

System CPLD Version Specifies the current version of the system complex programmable

logic device (CPLD) firmware.

UEFI Compliance Version Specifies the UEFI compliance level of the system firmware.

Memory Settings

To view the Memory Settings screen, power on the system, press F2, and click System Setup Main Menu > System BIOS

> Memory Settings.

Table 4. Memory Settings details

Option Description

System Memory Size Specifies the size of the system memory.

System Memory Type Specifies the type of memory installed in the system.

System Memory Speed Specifies the speed of the system memory.

System Memory Voltage Specifies the voltage of the system memory.

Video Memory Specifies the size video memory.

System Memory Testing Specifies whether the system memory tests are run during system boot.

The two options available are Enabled and Disabled. This option is set to

Disabled by default.

Memory Operating Mode Specifies the memory operating mode. The option is available and is set

to Optimizer Mode, by default. Options such as Fault Resilient Mode and

NUMA Fault Resilient Mode are available for support when the Advanced

RAS capability processor is installed on the system.

Current State of Memory Operating Mode Specifies the current state of the memory operating mode.

Node Interleaving Enables or disables the Node interleaving option. Specifies if the Non-

Uniform Memory Architecture (NUMA) is supported. If this field is set

to Enabled, memory interleaving is supported if a symmetric memory

configuration is installed. If the field is set to Disabled, the system

supports NUMA (asymmetric) memory configurations. This option is set

to Disabled by default.

ADDDC Settings Enables or disables ADDDC Setting feature. When Adaptive Double DRAM

Device Correction (ADDDC) is enabled, failing DRAMs are dynamically

mapped out. When set to Enabled it can impact the system performance

under certain workloads. This feature is applicable for x4 DIMMs only. This

option is set to Disabled by default.

Memory training When option is set to Fast and memory configuration is not changed,

the system uses previously saved memory training parameters to train

the memory subsystems and system boot time is also reduced. If memory

configuration is changed, the system automatically enables Retrain at

Next boot to force one-time full memory training steps, and then go back

to Fast afterward.

When option is set to Retrain at Next boot, the system performs the

force one-time full memory training steps at next power on and boot time

is slowed on next boot.

When option is set to Enabled, the system performs the force full

memory training steps on every power on and boot time is slowed on

every boot.

Memory Map Out This option controls DIMMs slots on the system. This option is set to

Enabled by default. It allows to disable system installed DIMMs.

6 Pre-operating system management applications

Table 4. Memory Settings details (continued)

Option Description

Correctable Error Logging Enables or disables correctable error logging. This option is set to

Enabled by default.

Dark Memory: Total Memory Available Enables or Disables dark memory feature. Dark Memory feature allows

software to change memory size. The option is set to Disabled and Hide

by default, options displaying needs to be enabled by personality module.

Processor Settings

To view the Processor Settings screen, power on the system, press F2, and click System Setup Main Menu > System

BIOS > Processor Settings.

Table 5. Processor Settings details

Option Description

Logical Processor Each processor core supports up to two logical processors.

If this option is set to Enabled, the BIOS displays all the

logical processors. If this option is set to Disabled, the BIOS

displays only one logical processor per core. This option is set

to Enabled by default.

CPU Interconnect Speed Enables you to govern the frequency of the communication

links among the processors in the system.

NOTE: The standard and basic bin processors support

lower link frequencies.

The options available are Maximum data rate, 11.2 GT/s,

10.4 GT/s, and 9.6 GT/s. This option is set to

Maximum data rate by default.

Maximum data rate indicates that the BIOS runs the

communication links at the maximum frequency

supported by the processors. You can also select specific

frequencies that the processors support, which can vary.

For best performance, you should select Maximum data

rate. Any reduction in the communication link frequency

affects the performance of non-local memory access

and cache coherency traffic. In addition, it can slow access to

non-local I/O devices from a particular processor.

However, if power saving considerations outweigh

performance, reduce the frequency of the processor

communication links. Before reducing the frequency, you must

localize the memory and I/O access to the nearest

NUMA node to minimize the impact to system performance.

Virtualization Technology When set to Enabled, the BIOS will enable processor

Virtualization features and provide the

virtualization support to the Operating System (OS) through

the DMAR table. In general, only virtualized environments

such

as VMware®, ESX™, Microsoft Hyper-V®, Red Hat® KVM,

and other virtualized operating systems will take advantage of

these features. Disabling this feature is not known to

significantly alter the performance or power characteristics of

the

system, so leaving this option Enabled is advised for most

cases.

Pre-operating system management applications 7

Table 5. Processor Settings details (continued)

Option Description

Directory Mode Enables or disables the directory mode. This option is set to

Enabled by default.

Kernel DMA Protection When set to Enabled, using IOMMU, BIOS and Operating

System will enable direct memory access protection

for DMA capable peripheral devices. Enable IOMMU Support

to use this option. When set to Enabled, using

Virtualization Technology, BIOS and Operating System will

enable direct memory access protection for DMA capable

peripheral devices.

Enable Virtualization Technology to use this option.

Adjacent Cache Line Prefetch Optimizes the system for applications that need high

utilization of sequential memory access. This option is set

to Enabled by default. You can disable this option for

applications that need high utilization of random memory

access.

Hardware Prefetcher Enables or disables the hardware prefetcher. This option is set

to Enabled by default.

DCU Streamer Prefetcher Enables or disables the Data Cache Unit (DCU) streamer

prefetcher. This option is set to Enabled by default.

DCU IP Prefetcher Enables or disables the Data Cache Unit (DCU) IP prefetcher.

This option is set to Enabled by default.

Sub NUMA Cluster Enables or disables the Sub NUMA Cluster. This option is set

to Disabled by default.

MADT Core Enumeration Specifies the MADT Core Enumeration. This option is set

to default in Round Robin. Linear option supports industry

core enumeration whereas, Round Robin option supports Dell

optimized core enumeration.

UPI Prefetch Enables you to get the memory read started early on DDR

bus. The Ultra Path Interconnect (UPI) Rx path spawns

the speculative memory that is read to Integrated Memory

Controller (iMC) directly. This option is set to Enabled by

default.

XPT Prefetch This option is set to Enabled by default.

LLC Prefetch Enables or disables the LLC Prefetch on all threads. This

option is set to Enabled by default.

Dead Line LLC Alloc Enables or disables the Dead Line LLC Alloc. This option is set

to Enabled by default. You can enable this option to enter the

dead lines in LLC or disable the option to not enter the dead

lines in LLC.

Directory AtoS Enables or disables the Directory AtoS. AtoS optimization

reduces remote read latencies for repeat read accesses

without intervening writes. This option is set to Disabled by

default.

Logical Processor Idling Enables you to improve the energy efficiency of a system. It

uses the operating system core parking algorithm and parks

some of the logical processors in the system, which in turn

allows the corresponding processor cores to 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.

8 Pre-operating system management applications

Table 5. Processor Settings details (continued)

Option Description

AVX P1 Enables you to reconfigure the processor Thermal Design

Power (TDP) levels during POST based on the power and

thermal delivery capabilities of the system. TDP verifies the

maximum heat the cooling system is must dissipate. This

option is set to Normal by default.

NOTE: This option is only available on certain stock

keeping units (SKUs) of the processors.

Dynamic SST-Performance Profile Enables you to reconfigure the processor using Dynamic

or Static Speed Select Technology. This option is set to

Disabled by default.

SST-Performance Profile Enables you to reconfigure the processor using Speed Select

Technology.

Intel SST-BF Enables Intel SST-BF. This option is displayed if Performance

Per Watt (operating system) or Custom (when OSPM is

enabled) system profiles are selected. This option is set to

Disabled by default.

Intel SST-CP Enables Intel SST-CP. This option is displayed if Performance

Per Watt (operating system) or Custom (when OSPM is

enabled) system profiles are selected. This option is displayed

and selectable for each system profile mode. This option is set

to Disabled by default.

x2APIC Mode Enables or disables x2APIC mode. This option is set to

Enabled by default.

NOTE: For two processors 64 cores configuration,

x2APIC mode is not switchable if 256 threads are enabled

(BIOS settings: All CCD, cores, and logical processors

enabled).

AVX ICCP Pre-Grant License Enables or disables AVX ICCP Pre-Grant License. This option

is set to Disabled by default.

AVX ICC Pre-Grant Level Enables you to select between the different AVX ICC

transition levels offered by Intel. This option is set to 128

heavy by default.

Dell Controlled Turbo

Dell Controlled Turbo Settings Controls the turbo engagement. Enable this option only when

System Profile is set to Performance or Custom, and CPU

Power Management is set to Performance. This item can be

selected for each system profile mode. This option is set to

Disabled by default.

NOTE: Depending on the number of installed processors,

there might be up to two processor listings.

Dell AVX Scaling Technology Enables you to configure the Dell AVX scaling technology. This

option is set to 0by default. Enter the value from 0 to 12

bins. The value that is entered decreases the Dell AVX Scaling

Technology frequency when the Dell-controlled Turbo feature

is enabled.

Optimizer Mode Enables or disables the CPU performance. When this option

is set to Auto, set the CPU Power Management to Max

Performance. When set to Enabled, enables the CPU Power

Management settings. When set to Disabled, the CPU Power

Management option is disabled. This option is set to Auto by

default.

Pre-operating system management applications 9

Table 5. Processor Settings details (continued)

Option Description

Number of Cores per Processor Controls the number of enabled cores in each processor. This

option is set to All by default.

Processor Core Speed Specifies the maximum core frequency of the processor.

Processor Bus Speed Specifies the bus speed of the processor.

NOTE: The processor bus speed option displays only

when both processors are installed.

Local Machine Check Exception Enables or disables the local machine check exception. This

is an extension of the MCA Recovery mechanism providing

the capability to deliver Uncorrected Recoverable (UCR)

Software Recoverable Action Required (SRAR) errors to

one or more specific logical processors threads receiving

previously poisoned or corrupted data. When enabled, the

UCR SRAR Machine Check Exception is delivered only to the

affected thread rather than broadcast to all threads in the

system. The feature supports operating system recovery for

cases of multiple recoverable faults that are detected close,

which would otherwise result in a fatal machine check event.

The feature is available only on Advanced RAS processors.

This option is set to Disabled by default.

Processor nProcessor 1 NOTE: Depending on the number of processors, there

might be up to n processors listed.

The following settings are displayed for each processor:

Table 6. Processor n details

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 processor microcode version.

SATA Settings

To view the SATA Settings screen, power on the system, press F2, and click ..

Table 7. SATA Settings details

Option Description

Embedded SATA Enables the embedded SATA option to be set to Off, AHCI mode , or RAID modes.

This option is set to AHCI Mode by default.

NOTE:

1. No ESXi and Ubuntu OS support under RAID mode.

Security Freeze Lock Sends Security Freeze Lock command to the embedded SATA drives during POST.

This option is applicable only for AHCI Mode. This option is set to Enabled by default.

10 Pre-operating system management applications

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