Dell M820 owner manual Boot Settings Screen, Menu Item Description Boot Mode

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Menu Item	Description
DCU IP Prefetcher	Allows you to enable or disable DCU IP prefetcher. By default, the DCU IP
	Prefetcher option is set to Enabled.
Execute Disable	Allows you enable or disable execute disable memory protection technology. By
	default, the Execute Disable option is set to Enabled.
Number of Cores	Allows you to control the number of enabled cores in each processor. By default,
per Processor	the Number of Cores per Processor option is set to All.
Processor 64-bit	Specifies if the processor(s) support 64-bit extensions.
Support
Processor Core	Displays the maximum core frequency of the processor.
Speed
Processor Bus	Displays the bus speed of the processors.
Speed	NOTE: The processor bus speed option is displayed only when both the

	processors are installed.
Processor X	Displays the family and model number of each processor. A submenu displays the
Family- Model-	core speed, the amount of cache memory, and the number of cores of the
Stepping	processor(s).

Boot Settings Screen

Menu Item	Description
Boot Mode	Allows you to set the boot mode of the system.
	CAUTION: Switching the boot mode may prevent the system from booting if
	the operating system is not installed in the same boot mode.
	If the operating system supports UEFI, you can set this option to UEFI. Setting this
	field to BIOS allows compatibility with non-UEFI operating systems. By default, the
	Boot Mode option is set to BIOS.
	NOTE: Setting this field to UEFI disables BIOS Boot Settings menu. Setting this
	field to BIOS disables the UEFI Boot Settings menu.

Boot Sequence Allows you to enable or disable the boot sequence retry feature. If this field is

Retryenabled and the system fails to boot, the system reattempts the boot sequence after 30 seconds. By default, the Boot Sequence Retry option is set to Disabled.

BIOS Boot Settings Allows you to enable or disable BIOS Boot options.

NOTE: This option is enabled only if the boot mode is BIOS.

UEFI Boot Settings Allows you to enable or disable UEFI Boot options. The Boot options include IPv4 PXE and IPv6 PXE. By default, the UEFI PXE boot protocol is set to IPv4.

NOTE: This option is enabled only if the boot mode is UEFI.

One-Time Boot Allows you to enable or disable a one-time boot from a selected device.

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Contents Dell PowerEdge M820 Systems Page Contents Page Technical Specifications System Messages Troubleshooting Your SystemUsing System Diagnostics Jumpers And ConnectorsGetting Help Front-Panel Features And Indicators Using USB Diskette or USB DVD/CD DrivesHard-Drive/SSD Indicator Patterns Other Information You May Need Drive-Status Condition Indicator PatternPage Using The System Setup And Boot Manager Using The System Setup Navigation Keys Choosing The System Boot ModeEntering System Setup Responding To Error MessagesSystem Setup Options System Setup Main ScreenSystem Bios Screen System Information Screen Memory Settings ScreenProcessor Settings Screen Menu Item Description Boot Mode Boot Settings ScreenIntegrated Devices Screen Serial Communications Screen System Profile Settings ScreenSystem Security Screen Miscellaneous Settings System And Setup Password FeaturesAssigning a System And/Or Setup Password Operating With a Setup Password Enabled Using Your System Password To Secure Your SystemUsing The Boot Manager Navigation Keys Entering The Uefi Boot ManagerEmbedded System Management Boot Manager ScreenUefi Boot Menu Menu Item Description Select Uefi BootEntering The iDRAC Settings Utility IDRAC Settings UtilityRemoving And Installing a Blade Recommended ToolsRemoving The Blade Removing and Installing the Blade Installing a Full-Height BladeOpening The Blade Opening And Closing The BladeClosing The Blade Inside The BladeRemoving The Cooling Shroud Cooling ShroudHard Drives/SSDs Installing The Cooling ShroudRemoving a Hard Drive/PCIe SSD Shutdown Procedure For Servicing a Hard Drive/PCIe SSD Installing a Hard Drive/PCIe SSDConfiguring The Boot Drive Removing The Hard-Drive/SSD Backplane Hard Drive/SSD BackplanePage Installing The Hard-Drive/SSD Backplane Mezzanine Card Installation Guidelines Module Mezzanine CardsRemoving a Mezzanine Card Removing and Installing a Mezzanine Card Installing a Mezzanine CardRemoving The Network Daughter Card/LOM Riser Card Network Daughter Card/LOM Riser CardInstalling The Network Daughter Card/LOM Riser Card Management Riser CardReplacing The SD Card Replacing The Internal USB Key Internal USB KeyReplacing The SD vFlash Card SD vFlash CardRemoving a Processor/DIMM Blank Processor/DIMM BlankRemoving and Installing a Processor/DIMM Blank Installing a Processor/DIMM BlankRemoving a Processor ProcessorsRemoving and Installing a Heat Sink Processor Shield Opening and Closing Lever Sequence Removing and Installing a Processor Installing a Processor Removing The System Board System BoardRemoving and Installing the System Board Installing The System BoardSystem Memory Memory channels are organized as follows Dimm General Memory Module Installation Guidelines Advanced ECC Lockstep Mode-Specific GuidelinesMemory Mirroring Sample Memory Configurations1600 MT/s Memory Configurations Four Processors Page Removing Memory Modules Installing Memory Modules Replacing The Nvram Backup Battery Nvram Backup BatteryStorage Controller Card/PCIe Extender Card Replacing the Nvram Backup BatteryRemoving The Storage Controller Card/PCIe Extender Card Screws Storage controller card Tabs Connector Removing and Installing a PCIe Extender Card Installing The Storage Controller Card/PCIe Extender CardTroubleshooting Your System Troubleshooting USB Devices Troubleshooting Hard DrivesTroubleshooting Processors Troubleshooting An Internal SD CardTroubleshooting The Nvram Backup Battery Troubleshooting The Blade System BoardWhen To Use The Embedded System Diagnostics Dell Online Diagnostics Dell Embedded System DiagnosticsRunning The Embedded System Diagnostics System Diagnostic ControlsDisplayed if at least one event description is recorded System Board Jumper Settings Jumpers And ConnectorsSystem Board Connectors System Board ConnectorsCPU2 Disabling a Forgotten PasswordPage Technical Specifications Connectors Internal For temperatures between 35 C and 40 C, de-rate Removing LCD Messages System Error MessagesLCD Status Messages Viewing LCD MessagesAction Error CodeAMP0300 Message DetailsAMP0308 AMP0304AMP0306 AMP0307AMP0309 Message AMP0310 MessageAMP0312 Message AMP0316 Message AMP0313 MessageAMP0314 Message AMP0315 MessageAMP0321 Message AMP0318 MessageAMP0319 Message AMP0320 MessageASR0003 Message ASR0000 MessageASR0001 Message ASR0002 MessageASR0103 Message ASR0100 MessageASR0101 Message ASR0102 MessageBAT0000 Message ASR0105 MessageASR0106 Message ASR0107 MessageBAT0014 Message BAT0007 MessageBAT0010 Message BAT0012 MessageCPU0001 Message BAT0019 MessageCBL0006 Message CPU0000 MessageCPU0006 Message CPU0003 MessageCPU0004 Message CPU0005 MessageCPU0101 Message CPU0010 MessageCPU0023 Message CPU0100 MessageCPU0200 Message CPU0201 MessageCPU0202 Message CPU0203 Message CPU0204 MessageCPU0700 Message CPU0701 Message CPU0702 MessageCPU0703 Message CPU0704 Message CPU0801 MessageCPU0802 Message CPU0806 Message CPU0803 MessageCPU0804 Message CPU0805 MessageHWC1005 Message CPU0816 MessageHWC1001 Message HWC1002 MessageHWC2008 Message HWC1010 MessageHWC1015 Message HWC2006 MessageHWC4002 Message HWC3002 MessageHWC3004 Message HWC4000 MessageHWC5004 Message HWC4015 MessageHWC5001 Message HWC5002 MessageHWC5036 Message HWC5031 MessageHWC5032 Message HWC5034 MessageHWC7008 Message HWC7002 MessageHWC7004 Message HWC7006 MessageMEM0002 Message LNK2700 MessageMEM0000 Message MEM0001 MessageMEM0010 Message MEM0005 MessageMEM0007 Message MEM0009 MessageMEM1003 Message MEM0701 MessageMEM0702 Message MEM1001 MessageMEM1208 Message MEM1016 MessageMEM1205 Message MEM1206 MessageOSE0001 Message MEM7002 MessageMEM8000 Message OSE0000 MessageOSE1005 Message OSE0005 MessageOSE1001 Message OSE1003 MessagePCI1308 Message PCI1302 MessagePCI1304 Message PCI1306 MessagePCI1322 Message PCI1316 MessagePCI1318 Message PCI1320 MessagePCI1350 Message PCI1344 MessagePCI1346 Message PCI1348 MessagePCI1362 Message PCI1356 MessagePCI1358 Message PCI1360 MessagePCI3004 Message PCI2002 MessagePCI3000 Message PCI3002 MessagePDR0001 Message PCI3010 MessagePCI3012 Message PCI3014 MessagePDR1024 Message PDR1001 MessagePDR1002 Message PDR1016 MessagePST0132 Message PST0129 MessagePST0130 Message PST0131 MessagePST0137 Message PST0134 MessagePST0135 Message PST0136 MessagePST0142 Message PST0139 MessagePST0140 Message PST0141 MessagePST0196 Message PST0193 MessagePST0194 Message PST0195 MessagePSU0003 Message PST0256 MessagePSU0001 Message PSU0002 MessagePSU0008 Message PSU0005 MessagePSU0006 Message PSU0007 MessagePSU1203 Message PSU0031 MessagePSU1201 Message PSU1202 MessagePWR1004 Message PWR1001 MessagePWR1002 Message PWR1003 MessageRFM1003 Message PWR1006 MessagePWR1007 Message PWR1008 MessageRFM1016 Message RFM1006 MessageRFM1008 Message RFM1014 MessageRFM1034 Message RFM1024 MessageRFM1026 Message RFM1032 MessageRFM2002 Message RFM1203 MessageRFM1205 Message RFM2001 MessageAction Close the fan area. Check system logs Security may be compromisedSEC0041 Message SEC0031 MessageSEC0033 Message SEC0040 MessagePassword policies SEL0006 Message SEC0608 MessageSEC0610 Message SEL0002 MessageSEL1300 Message SEL1204 MessageSEL1209 Message SEL1211 MessageSEL1502 Message SEL1306 MessageSEL1308 Message SEL1501 MessageSWC4004 Message SEL1508 MessageSEL1510 Message SEL9900 MessageTMP0102 Message SWC5001 MessageTMP0100 Message TMP0101 MessageTMP0108 Message TMP0104 MessageTMP0106 Message TMP0107 MessageTMP0114 Message TMP0110 MessageTMP0112 Message TMP0113 MessageTMP0121 Message TMP0118 MessageTMP0119 Message TMP0120 MessageTMP0132 Message TMP0126 MessageTMP0128 Message TMP0130 MessageTMP0134 Message VLT0100 MessageVLT0101 Message VLT0102 Message VLT0103 MessageVLT0104 Message VLT0200 Message VLT0201 MessageVLT0202 Message VLT0203 Message VLT0204 MessageVLT0206 Message VLT0207 Message VLT0208 MessageVLT0209 Message VLT0210 Message VLT0212 MessageVLT0213 Message VLT0214 Message VLT0215 MessageVLT0216 Message VLT0218 Message VLT0219 MessageVLT0220 Message VLT0221 Message VLT0222 MessageVLT0224 Message VLT0225 Message VLT0226 MessageVLT0227 Message VLT0228 Message VLT0230 MessageVLT0231 Message VLT0232 Message VLT0233 MessageVLT0234 Message Alert Messages Diagnostic MessagesContacting Dell Getting Help

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