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HW Prefetcher
NOTE: This option is available on servers with Intel processors.
This option controls processor prefetch features. 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.
IMPORTANT: Disabling this option is not recommended because it typically degrades system
performance.
Options include:
• Enabled (default)
• Disabled
Advanced Options menu 127
- Abstract 1
- Contents 3
- 4 Contents 4
- Contents 5 5
- 6 Contents 6
- Contents 7 7
- 8 Contents 8
- 1 Introduction 9
- Using this guide 10
- G7, and Gen8 servers) 11
- System Options menu 12
- System Options menu 13 13
- Virtual Serial Port 14
- System Options menu 15 15
- Embedded NICs 16
- NIC Personality Options 17
- USB Options 19
- USB 2.0 Controller 21
- USB Boot Support 22
- USB Drive Key Enumeration 23
- Processor Options 25
- No-Execute Page Protection 27
- AMD V (AMD Virtualization) 29
- Intel Hyperthreading Options 30
- System Options menu 31 31
- Intel Turbo Boost Technology 33
- System Options menu 35 35
- AMD Core Performance Boost 36
- Intel VT-d 37
- AMD-Vi (IOMMU) 38
- System Options menu 39 39
- Embedded SATA Configuration 42
- Power Management Options menu 45
- HP Power Regulator 46
- Redundant Power Supply Mode 47
- Intel QPI Link Frequency 50
- Energy/Performance Bias 57
- Maximum Memory Bus Frequency 58
- Channel Interleaving 59
- Memory Interleaving 60
- Maximum PCI Express Speed 63
- Collaborative Power Control 65
- Power Capping Support 66
- DIMM Idle Power Saving Mode 68
- DIMM Voltage Preference 69
- Memory Power Savings Mode 70
- HyperTransport Frequency 71
- PCI IRQ Settings menu 73
- POST F1 Prompt 82
- Power Button 83
- Server Availability menu 85 85
- Power-On Delay 86
- Server Security menu 87
- TPM Clear 94
- BIOS Interface Mode 99
- Server Asset Text menu 100
- Administrator Info Text 101
- Service Contact Text 102
- Custom POST Message 103
- Advanced Options menu 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
- Advanced Options menu 119 119
- HP Option ROM Prompting 120
- Video Options 121
- Thermal Configuration 123
- Service Options 124
- Product ID 125
- HW Prefetcher 127
- Adjacent Sector Prefetch 128
- DCU Prefetcher 129
- DCU Streamer Prefetcher 130
- DCU IP Prefetcher 131
- Data Reuse 132
- Advanced Options menu 133 133
- 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
- Data Direct I/O 141
- Memory Channel Mode 142
- Advanced Options menu 143 143
- Hemisphere Mode 144
- HPC Optimization Mode 145
- ACPI SLIT Preferences 146
- Advanced Options menu 147 147
- One Terabyte Memory Limit 148
- Drive Write Cache 149
- Asset Tag Protection 150
- Advanced Options menu 151 151
- Embedded SATA RAID 152
- System Default Options menu 153
- User Default Options 155
- Options include: 157
- • English (default) 157
- • Japanese 157
- RBSU main menu 158
- Embedded Serial Port A 159
- Embedded Serial Port B 160
- Optional LPT Mode Support 161
- NUMLOCK Power-On State 161
- 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
- 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
- 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
- Network Server Mode 175
- QuickLock 175
- BIOS Serial Console Port 176
- BIOS Serial Console Baud Rate 176
- EMS Console 178
- Set Service Contact Text 180
- Secondary IDE Channel Support 184
- BIOS Enhanced RAID 184
- Processor Hyper-Threading 185
- No-Execute Memory Protection 186
- Embedded VGA Control 187
- Utility Language menu 188
- BIOS Serial Console setup 189
- Terminal emulation options 189
- 7. Select Terminal Settings 191
- Keystroke emulation 193
- Escape sequences 194
- Inspect CLI Commands 195
- RBSU CLI Commands 196
- Command Buffering Support 198
- Additional CLI support 199
- Manual configuration flow 200
- Scripted configuration flow 200
- Using HPRCU 203
- HPRCU command-line syntax 203
- HPRCU command line arguments 203
- HPRCU return codes 203
- 6 ROM-based utilities 205
- Setup Utility 206
- Inspect Utility 206
- Diagnostics Utility 207
- CPU Test 208
- Auto-Configuration Process 209
- Boot options 211
- Operating System Installation 211
- 7 Support and other resources 212
- Typographic conventions 213
- HP Insight Online 214
- 8 Documentation feedback 215
- Acronyms and abbreviations 216
- 218 Index 218
- 220 Index 220
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