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HP ProLiant SL2500 HP ROM-Based Setup Utility User Guide - Page 129

DCU Prefetcher

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DCU Prefetcher NOTE: This option is available on G7 and earlier servers with Intel processors. This option controls processor prefetching. In most cases, this option should remain enabled. With certain workloads, however, disabling this option may provide a performance benefit. Disable this option only after performing application benchmarking to verify improved performance in a particular environment. Options include: • Enabled (default) • Disabled Advanced Options menu 129

Section	Page
HP ROM-Based Setup Utility User Guide	1
Contents	3
1 Introduction	9
Overview	9
Running RBSU	9
Using this guide	10
2 RBSU menu-driven interface, version 3.xx or later (G6, G7, and Gen8 servers)	11
RBSU main menu	11
System Options menu	12
Serial Port options	12
Embedded Serial Port	12
Virtual Serial Port	14
Embedded Serial Port Connector	15
Embedded NICs	16
NIC Personality Options	17
Advanced Memory Protection	18
USB Options	19
USB Control	20
USB 2.0 Controller	21
USB Boot Support	22
Removable Flash Media Boot Sequence	23
USB Drive Key Enumeration	23
Processor Options	25
No-Execute Memory Protection	26
No-Execute Page Protection	27
Intel Virtualization Technology	28
AMD V (AMD Virtualization)	29
Intel Hyperthreading Options	30
Enhanced Processor Core Disable (Intel Core Select)	31
Processor Core Disable (Intel Core Select) (G7 and Gen8 servers)	32
Processor Core Disable (AMD Core Select)	33
Intel Turbo Boost Technology	33
Intel Turbo Boost Technology (Gen8 servers)	34
Intel Turbo Boost Technology (G7 servers)	35
AMD Core Performance Boost	36
Intel VT-d	37
AMD-Vi (IOMMU)	38
Remote Console Mode	39
NUMLOCK Power-On State	41
SATA Controller Options (Gen8 servers with SATA controllers)	42
Embedded SATA Configuration	42
Drive Write Cache	43
HP Smart Array B320i RAID Configuration	44
Power Management Options menu	45
HP Power Profile	45
HP Power Regulator	46
Redundant Power Supply Mode	47
Advanced Power Management Options	48
Intel QPI Link Power Management	49
Intel QPI Link Frequency	50
QPI Bandwidth Optimization (RTID)	51
Minimum Processor Idle Power Core State	52
Minimum Processor Idle Power Core C6 State	53
Minimum Processor Idle Power C1e State	54
Minimum Processor Idle Power Package State	55
Minimum Processor Idle Power State	56
Energy/Performance Bias	57
Maximum Memory Bus Frequency	58
Channel Interleaving	59
Memory Interleaving	60
PCI Express Generation 2.0 Support	61
PCIe Gen 3 Control (for select devices)	62
Maximum PCI Express Speed	63
Dynamic Power Savings Mode Response	64
Collaborative Power Control	65
Power Capping Support	66
ACPI SLIT Preferences	67
DIMM Idle Power Saving Mode	68
DIMM Voltage Preference	69
Memory Power Savings Mode	70
HyperTransport Frequency	71
Dynamic Power Capping Functionality	72
PCI IRQ Settings menu	73
PCI Device Enable/Disable menu	74
Standard Boot Order (IPL) menu	75
Boot Controller Order menu	76
Date and Time menu	77
Server Availability menu	78
ASR Status	78
ASR Timeout	79
Thermal Shutdown	80
Wake-On LAN	81
POST F1 Prompt	82
Power Button	83
Automatic Power-On (G7 servers)	84
Automatic Power-On (Gen8 servers)	85
Power-On Delay	86
Server Security menu	87
Set Power-On Password	87
Set Admin Password	88
Network Server Mode	89
Intelligent Provisioning (F10 Prompt)	90
Trusted Platform Module	91
TPM Functionality	91
TPM Visibility	92
TPM Expansion ROM Measuring	93
TPM Clear	94
BIOS Serial Console & EMS menu	95
BIOS Serial Console Port	96
BIOS Serial Console Baud Rate	97
EMS Console	98
BIOS Interface Mode	99
Server Asset Text menu	100
Server Info Text	100
Administrator Info Text	101
Service Contact Text	102
Custom POST Message	103
Advanced Options menu	104
Advanced System ROM Options	104
Option ROM Loading Sequence	105
MPS Table Mode	106
ROM Selection	107
NMI Debug Button	108
Virtual Install Disk	109
PCI Bus Padding Options	110
Memory Mapped I/O Options	111
Address Mode 44-bit	112
Power-On Logo	113
F11 Boot Menu Prompt	114
Consistent Device Naming	115
Network Boot Retry Support	116
Hide Option ROM Messages	117
PCIe Slot6 Training Speed	118
Reset on Boot Device Not Found	119
HP Option ROM Prompting	120
Video Options	121
Power Supply Requirements Override	122
Thermal Configuration	123
Service Options	124
Serial Number	124
Product ID	125
Advanced Performance Tuning Options	126
HW Prefetcher	127
Adjacent Sector Prefetch	128
DCU Prefetcher	129
DCU Streamer Prefetcher	130
DCU IP Prefetcher	131
Data Reuse	132
Hardware Prefetch training on Software Prefetch	133
DRAM Prefetch on CPU Request	134
DRAM Prefetch on I/O Request	135
CPU Core Hardware Prefetcher	136
CPU Cache Stride Prefetcher	137
Stack Engine Prediction	138
Node Interleaving	139
1333 MHz Support for 3DPC-10600H HP SmartMemory	140
Data Direct I/O	141
Memory Channel Mode	142
Memory Speed with 2 DIMMs per Channel	143
Hemisphere Mode	144
HPC Optimization Mode	145
ACPI SLIT Preferences	146
Intel Performance Counter Monitor (PCM)	146
One Terabyte Memory Limit	148
Drive Write Cache	149
Asset Tag Protection	150
SR-IOV	151
Embedded SATA RAID	152
System Default Options menu	153
Restore Default System Settings	153
Restore Settings/Erase Boot Disk	154
User Default Options	155
Utility Language menu (G5 through G7 servers)	156
Utility Language menu (Gen8 servers)	157
3 RBSU menu-driven interface, version 2.xx (G5 and earlier servers)	158
RBSU main menu	158
System Options menu	158
Embedded Serial Port A	159
Embedded Serial Port B	160
Virtual Serial Port	161
Optional LPT Mode Support	161
Integrated Diskette Controller	161
NUMLOCK Power-On State	161
Embedded NICs	162
Diskette Write Control	162
Diskette Boot Control	162
Advanced Memory Protection	163
USB Control	164
USB 2.0 EHCI Controller	164
Power Regulator for ProLiant	165
USB External Port Capability	166
Ultra Low Power State	167
PCI Devices menu	168
Standard Boot Order (IPL) menu	169
Boot Controller Order menu	170
Date and Time menu	170
Server Availability menu	170
ASR Status	171
ASR Timeout	171
Thermal Shutdown	171
Wake-On LAN	171
POST Speed Up	171
POST F1 Prompt	172
Power Button	172
Automatic Power-On	172
Power-On Delay	172
Server Passwords menu	172
Set Power-On Password	173
Set Admin Password	173
Trusted Platform Module	173
TPM Functionality	174
TPM Visibility	174
TPM Expansion ROM Measuring	174
TPM Clear	175
Network Server Mode	175
QuickLock	175
BIOS Serial Console and EMS menu	175
BIOS Serial Console Port	176
BIOS Serial Console Baud Rate	176
EMS Console	178
BIOS Interface Mode	179
Server Asset Text menu	179
Set Server Info Text	179
Set Administrator Info Text	179
Set Service Contact Text	180
Custom POST Message	181
Advanced Options menu	181
Multi-Processor Specification (MPS) Table Mode	182
ROM Selection	182
Restore Default System Settings	183
Restore Settings/Erase Boot Disk	183
User Default Options	183
NMI Debug Button	184
Virtual Install Disk	184
Secondary IDE Channel Support	184
BIOS Enhanced RAID	184
Node Interleaving	184
Serial Number	185
Product ID	185
Drive Write Cache	185
SATA Software RAID	185
Optional PCI-X Riser Fan Monitoring	185
Processor Options	185
Processor Hyper-Threading	185
HW Prefetcher	186
Adjacent Sector Prefetch	186
No-Execute Memory Protection	186
Intel Virtualization Technology	186
Expansion Card Caching Optimization	186
Power Supply Requirements Override	186
Embedded VGA Control	187
Utility Language menu	188
4 RBSU BIOS Serial Console (CLI)	189
BIOS Serial Console/CLI overview	189
BIOS Serial Console setup	189
Terminal emulation options	189
Microsoft HyperTerminal setup	189
Keystroke emulation	193
Escape sequences	194
Character translations in VT100 mode	194
Inspect CLI Commands	195
RBSU CLI Commands	196
System Maintenance CLI Commands	198
Command Buffering Support	198
Additional CLI support	199
5 RBSU configuration flows (manual and scripted)	200
RBSU configuration flow overview	200
Manual configuration flow	200
Scripted configuration flow	200
Configuration Replication Utility (CONREP)	201
CONREP -s (Store to Data file)	202
CONREP –l (Load from Data File)	202
HP ROM Configuration Utility (HPRCU)	203
Using HPRCU	203
HPRCU command-line syntax	203
HPRCU command line arguments	203
HPRCU return codes	203
Array Configuration Replication Utility	204
6 ROM-based utilities	205
Embedded server setup	205
Setup Utility	206
RBSU Erase option	206
Virtual Install Disk option	206
Inspect Utility	206
Diagnostics Utility	207
Memory Test	207
CPU Test	208
Boot Disk Test	209
Auto-Configuration Process	209
Intelligent Provisioning Quick Configs settings and corresponding RBSU settings	209
Boot options	211
Operating System Installation	211
7 Support and other resources	212
Information to collect before contacting HP	212
How to contact HP	212
Subscription service	212
Related information	212
Typographic conventions	213
HP Insight Remote Support software	213
HP Insight Online	214
8 Documentation feedback	215
Acronyms and abbreviations	216