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Dell PowerEdge M420 Systems Owner's Manual
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Notes, Cautions, and Warnings
About Your System
Overview
Front-Panel Features And Indicators
Solid State Drive Features
Using USB Diskette Or USB DVD/CD Drives
iKVM Access
Other Information You May Need
Using The System Setup And Boot Manager
Choosing The System Boot Mode
Entering System Setup
Responding To Error Messages
Using The System Setup Navigation Keys
System Setup Options
System Setup Main Screen
System BIOS Screen
System Information Screen
Memory Settings Screen
Processor Settings Screen
Boot Settings Screen
Integrated Devices Screen
Serial Communications Screen
System Profile Settings Screen
System Security Screen
Miscellaneous Settings
System And Setup Password Features
Assigning A System And/Or Setup Password
Using Your System Password To Secure Your System
Deleting or changing an existing system and/or setup password
Operating with a setup password enabled
Entering the UEFI Boot Manager
Using the Boot Manager navigation keys
Boot Manager screen
UEFI Boot menu
Embedded System Management
iDRAC Settings Utility
Entering the iDrac Settings utility
Installing Blade Components
Recommended Tools
Removing And Installing A Sleeve
Removing The Sleeve
Installing The Sleeve
Removing And Installing A Blade
Removing A Blade
Installing A Blade
Inside The Blade
I/O Module Mezzanine Card
Mezzanine Card Installation Guidelines
Removing A Mezzanine Card
Installing A Mezzanine Card
LOM Riser Card
Removing The LOM Riser Card
Installing The LOM Riser Card
Solid State Drives
Removing A Solid State Drive
Installing A Solid State Drive
Shutdown Procedure For Servicing A Solid State Drive
Configuring the boot drive
Removing An SSD From The SSD Carrier
Installing An SSD In The SSD Carrier
Solid State Drive Backplane
Removing The SSD Backplane
Installing The SSD Backplane
Processors
Removing A Processor
Installing A Processor
NVRAM backup battery
Replacing The NVRAM Backup Battery
System board
Removing The Blade System Board
Installing The Blade System Board
Processor/DIMM blank
Removing A Processor/DIMM Blank
Installing A Processor/DIMM Blank
System memory
General Memory Module Installation Guidelines
Mode-Specific Guidelines
Advanced ECC (Lockstep)
Memory optimized (independent channel) mode
Memory Sparing
Memory Mirroring
Sample Memory Configurations
Removing Memory Modules
Installing Memory Modules
Management Riser Card
Removing The Management Riser Card
Installing The Management Riser Card
Replacing The SD Card
Replacing The SD vFlash Card
Troubleshooting Your System
Troubleshooting System Memory
Troubleshooting Solid State Drives
Troubleshooting USB devices
Troubleshooting An Internal SD Card
Troubleshooting Processors
Troubleshooting The Blade System Board
Troubleshooting The NVRAM Backup Battery
Using system diagnostics
Dell Online Diagnostics
Dell embedded system diagnostics
When to use the embedded system diagnostics
Running the embedded system diagnostics
System diagnostic controls
Jumpers and connectors
System Board Jumper Settings
System Board Connectors
Disabling A Forgotten Password
Technical Specifications
System messages
LCD status messages
Viewing LCD messages
Removing LCD messages
System Error Messages
Warning messages
Diagnostic messages
Alert messages
Getting help
Contacting Dell
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