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Dell PowerEdge MX840c EMC PowerEdge MX840c Installation and Service Manual - Page 24

Processor Settings details, System Setup Main Menu

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3. On the System Setup Main Menu screen, click System BIOS. 4. On the System BIOS screen, click Processor Settings. Processor Settings details About this task The Processor Settings screen details are explained as follows: Option Description Logical Processor Enables or disables the logical processors and displays the number of 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 CPUs in the system. NOTE: The standard and basic bin processors support lower link frequencies. The options available are Maximum data rate, 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 that is 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 nonlocal memory accesses and cache coherency traffic. In addition, it can slow access to nonlocal I/O devices from a particular CPU. However, if power-saving considerations outweigh performance, you might want to reduce the frequency of the CPU communication links. If you do this, you should localize memory and I/O accesses to the nearest NUMA node to minimize the impact to system performance. Virtualization Technology Adjacent Cache Line Prefetch Hardware Prefetcher Software Prefetcher DCU Streamer Prefetcher DCU IP Prefetcher Sub NUMA Cluster Enables or disables the virtualization technology for the processor. This option is set to Enabled by default. 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. Enables or disables the hardware prefetcher. This option is set to Enabled by default. Enables or disables the software prefetcher. This option is set to Enabled by default. Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is set to Enabled by default. Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to Enabled by default. Sub NUMA Clustering (SNC) is a feature for breaking up the LLC into disjoint clusters based on address range, with each cluster bound to a subset of the memory controllers in the system. It improves average latency to the LLC. Enables or disables the Sub NUMA Cluster. This option is set to Disabled by default. UPI Prefetch LLC Prefetch Dead Line LLC Alloc Directory AtoS FastGo Enables you to get the memory read started early on DDR bus. The Ultra Path Interconnect (UPI) Rx path spawns the speculative memory read to Integrated Memory Controller (iMC) directly. This option is set to Enabled by default. Enables or disables the LLC Prefetch on all threads. This option is set to Disabled by default. When enabled, it opportunistically fill dead lines in LLC. When disabled, it never fill dead lines in LLC. This option is set to Enabled by default. AtoS optimization reduces remote read latencies for repeat read accesses without intervening writes. This option is set to Disabled by default. Enables you to select CR OOS Configuration Profiles. 24 Pre-operating system management applications

Section	Page
Dell EMC PowerEdge MX840c Installation and Service Manual	3
About this document	7
Dell EMC PowerEdge MX840c overview	8
Front view of the sled	9
Inside the sled	9
Locating the Service Tag of the sled	11
System information label	11
Initial system setup and configuration	15
Setting up your sled	15
iDRAC configuration	15
Options to set up iDRAC IP address	15
Log in to iDRAC	16
Options to install the operating system	16
Methods to download firmware and drivers	16
Downloading drivers and firmware	17
Pre-operating system management applications	18
Options to manage the pre-operating system applications	18
System Setup	18
View System Setup	18
System Setup details	19
System BIOS	19
Viewing System BIOS	19
System BIOS Settings details	19
System Information	20
View System Information	20
System Information details	20
Memory Settings	21
View Memory Settings	21
Memory Settings details	21
Persistent Memory details	22
Processor Settings	23
View Processor Settings	23
Processor Settings details	24
SATA Settings	25
View SATA Settings	26
SATA Settings details	26
NVMe Settings	26
View NVMe settings	27
NVMe Settings details	27
Boot Settings	27
View Boot Settings	27
Boot Settings details	28
UEFI Boot Settings	28
Choosing system boot mode	28
Changing boot order	29
Network Settings	29
Viewing Network Settings	29
Network Settings screen details	29
Integrated Devices	30
Viewing Integrated Devices	30
Integrated Devices details	30
Serial Communication	32
Viewing Serial Communication	32
Serial Communication details	32
System Profile Settings	33
Viewing System Profile Settings	33
System Profile Settings details	33
System Security	34
Viewing System Security	34
System Security Settings details	35
Creating a system and setup password	37
Using your system password to secure your system	37
Deleting or changing system and Setup password	37
Operating with setup password enabled	38
Redundant OS Control	38
Viewing Redundant OS Control	38
Redundant OS Control screen details	39
Miscellaneous Settings	39
View Miscellaneous Settings	39
Miscellaneous Settings details	40
iDRAC Settings utility	40
Device Settings	40
Dell Lifecycle Controller	40
Embedded System Management	40
Boot Manager	41
View the boot manager	41
Boot Manager main menu	41
One-shot UEFI Boot menu	41
System Utilities	41
PXE boot	41
Installing and removing sled components	42
Safety instructions	42
Before working inside your sled	42
After working inside your sled	43
Recommended tools	43
PowerEdge MX840c sled	43
Removing the sled from the enclosure	43
Installing the sled into the enclosure	45
Sled cover	46
Removing the sled cover	46
Installing the sled cover	47
Air shroud	49
Removing the air shroud from the PEM	49
Installing the air shroud on the PEM	49
Removing the air shroud from the system board	50
Installing the air shroud on the system board	51
Processor expansion module	52
Removing the processor expansion module	52
Installing the processor expansion module	53
Drives	54
Drive installation guidelines	54
Removing a drive blank	54
Installing a drive blank	55
Removing a drive carrier	56
Installing a drive carrier	57
Removing a drive from the drive carrier	58
Installing a drive into the drive carrier	59
Drive backplane	60
Drive backplane connectors	60
Removing the drive backplane	61
Installing the drive backplane	62
Cable routing	64
Drive cage	67
Removing the drive cage	67
Installing the drive cage	68
Battery backup unit	69
Removing the battery backup unit module	69
Installing the BBU module	70
Removing the BBU from the BBU cage	71
Installing the BBU into the BBU cage	72
Control panel	73
Removing the control panel	73
Installing the control panel	74
System memory	75
Memory channels and population	75
General memory module installation guidelines	78
NVDIMM-N memory module installation guidelines	79
DCPMM installation guidelines	82
Mode-specific guidelines	84
Removing a memory module	87
Installing a memory module	88
Processors and heat sinks	89
Processor wattage and heat sink dimensions	90
Removing the processor and heat sink module	90
Removing the processor from the processor and heat sink module	91
Installing the processor into a processor and heat sink module	92
Installing the processor and heat sink module	95
iDRAC card	96
Removing the iDRAC card	96
Installing the iDRAC card	97
PERC cards	99
Removing the PERC card	99
Installing the PERC card	99
Removing the Jumbo PERC card	100
Installing the Jumbo PERC card	101
Optional Internal dual SD module	102
Removing the optional IDSDM module	102
Installing the optional IDSDM module	103
Removing a MicroSD card	104
Installing a MicroSD card	105
M.2 BOSS module	106
Removing the M.2 BOSS module	106
Installing the M.2 BOSS module	107
Removing the M.2 SATA card	108
Installing the M.2 SATA card	109
Mezzanine card	110
Mezzanine card installation guidelines	110
Removing the mini Mezzanine card blank	110
Installing the mini Mezzanine card blank	111
Removing a mini Mezzanine card	112
Installing a mini Mezzanine card	112
Removing the Mezzanine card	113
Installing the Mezzanine card	115
Optional internal USB memory key	116
Replacing the optional internal USB memory key	116
System battery	117
Replacing the system battery	117
System board	118
Removing the system board	118
Installing the system board	120
Entering the system Service Tag by using System Setup	121
Restoring the Service Tag by using the Easy Restore feature	121
Trusted Platform Module	122
Upgrading the Trusted Platform Module	122
Removing the TPM	122
Installing the TPM	123
Initializing TPM for BitLocker users	123
Initializing the TPM 1.2 for TXT users	123
Initializing the TPM 2.0 for TXT users	123
Jumpers and connectors	125
System board jumpers and connectors	125
System board jumper settings	127
Disabling forgotten password	127
Technical specifications	129
Sled dimensions	129
Chassis weight	129
Processor specifications	130
Intel Quick Assist Technology	130
Supported operating systems	130
System battery specifications	130
Memory specifications	130
Drives	131
Ports and connectors specifications	132
USB ports	132
Internal Dual SD Module	132
PERC controller cards	132
Mezzanine cards	133
Environmental specifications	133
Particulate and gaseous contamination specifications	134
Standard operating temperature	135
Expanded operating temperature	135
Expanded operating temperature restrictions	136
Thermal	136
System diagnostics and indicator codes	137
System ID and status LED indicator codes	137
Power button LED	137
Drive indicator codes	138
System diagnostics	139
Dell Embedded System Diagnostics	139
Running the Embedded System Diagnostics from Boot Manager	139
Running the Embedded System Diagnostics from the Dell Lifecycle Controller	139
System diagnostic controls	139
Getting help	140
Contacting Dell	140
Documentation feedback	140
Receiving automated support with SupportAssist	140
Accessing system information by using QRL	141
Quick Resource Locator for the PowerEdge MX840c sled	141
Recycling or End-of-Life service information	141

Match case Limit results 1 per page

On the

System Setup Main Menu

screen, click

System BIOS

On the

System BIOS

screen, click

Processor Settings

Processor Settings details

About this task

The

Processor Settings

screen details are explained as follows:

Option

Description

Logical

Processor

Enables or disables the logical processors and displays the number of 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 CPUs in the system.

NOTE:

The standard and basic bin processors support lower link frequencies.

The options available are

Maximum data rate

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 that

is 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 nonlocal memory accesses and cache coherency traffic. In addition,

it can slow access to nonlocal I/O devices from a particular CPU.

However, if power-saving considerations outweigh performance, you might want to reduce the frequency

of the CPU communication links. If you do this, you should localize memory and I/O accesses to the

nearest NUMA node to minimize the impact to system performance.

Virtualization

Technology

Enables or disables the virtualization technology for the processor. This option is set to

Enabled

default.

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.

Software

Prefetcher

Enables or disables the software 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

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

Sub NUMA Clustering (SNC) is a feature for breaking up the LLC into disjoint clusters based on address

range, with each cluster bound to a subset of the memory controllers in the system. It improves average

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

Disabled

by default.

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 read to Integrated Memory Controller (iMC) directly. This option is set to

Enabled

by default.

LLC Prefetch

Enables or disables the LLC Prefetch on all threads. This option is set to

Disabled

by default.

Dead Line LLC

Alloc

When enabled, it opportunistically fill dead lines in LLC. When disabled, it never fill dead lines in LLC. This

option is set to

Enabled

by default.

Directory AtoS

AtoS optimization reduces remote read latencies for repeat read accesses without intervening writes.

This option is set to

Disabled

by default.

FastGo

Enables you to select CR OOS Configuration Profiles.

Pre-operating system management applications