Dell R 420 Manual

							System passwordThis is the password that you must enter before you can boot your system.
Setup passwordThis is the password that you must enter to access and make changes to the BIOS or UEFI 
settings of your system.
CAUTION: The password features provide a basic level of security for the data on your system.
CAUTION: Anyone can access the data stored on your system if the system is running and unattended.
NOTE: Your system is shipped with the system and setup password feature disabled.
Assigning A System And/Or Setup Password
NOTE: The password jumper enables or disables the System Password and Setup Password features. For more 
information on the password jumper settings, see System Board Jumper Settings.
You can assign a new System Password and/or Setup Password or change an existing System Password and/or Setup 
Password
 only when the password jumper setting is enabled and Password Status is Unlocked. If the Password Status 
is 
Locked, you cannot change the System Password.
If the password jumper setting is disabled, the existing System Password and Setup Password is deleted and you need  not provide the system password to log on to the system.
To assign a system and/or setup password:
1.To enter System Setup, press  immediately after a power-on or reboot.
2.In the System Setup Main Menu, select System BIOS and press .
The System BIOS screen is displayed.
3.In the System BIOS screen, select System Security and press .
The System Security screen is displayed.
4.In the System Security screen, verify that Password Status is Unlocked.
5.Select System Password , enter your system password, and press  or .
Use the following guidelines to assign the system password:
–A password can have up to 32 characters.
–The password can contain the numbers 0 through 9.
–Only lower case letters are valid, upper case letters are not allowed.
–Only the following special characters are allowed: space, (”), (+), (,), (-), (.), (/), (;), ([), (\), (]),\
 (`).
A message prompts you to re-enter the system password.
6.Re-enter the system password that you entered earlier and click OK.
7.Select Setup Password, enter your system password and press  or .
A message prompts you to re-enter the setup password.
8.Re-enter the setup password that you entered earlier and click OK.
9.Press  to return to the System BIOS screen. Press  again, and a message prompts you to save the  changes.
NOTE: Password protection does not take effect until the system reboots.
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							Deleting Or Changing An Existing Setup Password
Ensure that the Password jumper is set to enabled and the Password Status is Unlocked before attempting to delete or 
change the existing System and/or Setup password. You cannot delete or change an existing System password if the 
Password Status is Locked.
To delete or change the existing System and/or Setup password:
1.To enter System Setup, press  immediately after a power-on or reboot.
2.In the System Setup Main Menu, select System BIOS and press .
The System BIOS screen is displayed.
3.In the System BIOS Screen, select System Security and press .
The System Security screen is displayed.
4.In the System Security screen, verify that Password Status is Unlocked.
5.Select System Password, alter or delete the existing system password and press  or .
6.Select Setup Password, alter or delete the existing setup password and press  or .
NOTE: If you change the System and/or Setup password a message prompts you to re-enter the new 
password. If you delete the System and/or Setup password, a message prompts you to confirm the deletion.
7.Press  to return to the System BIOS screen. Press  again, and a message prompts you to save the 
changes.
NOTE: You can disable password security while logging on to the system. To disable the password security, turn on 
or reboot your system, type your password and press .
Using Your System Password To Secure Your System
NOTE: If you have assigned a setup password, the system accepts your setup password as an alternate system 
password.
1.Turn on or reboot your system.
2.Type your password and press .
When Password Status is Locked, type the password and press  when prompted at reboot.
If an incorrect system password is entered, the system displays a message and prompts you to re-enter your password. 
You have three attempts to enter the correct password. After the third unsuccessful attempt, the system displays an 
error message that the system has halted and must be powered down.
Even after you shut down and restart the system, the error message is displayed until the correct password is entered.
NOTE: You can use the Password Status option in conjunction with the System Password and Setup Password 
options to protect your system from unauthorized changes.
Operating With A Setup Password Enabled
If Setup Password is Enabled, enter the correct setup password before modifying most of the System Setup options.
If you do not enter the correct password in three attempts, the system displays the message
Invalid Password! Number of unsuccessful password attempts:  System Halted! 
Must power down.
Even after you shut down and restart the system, the error message is displayed until the correct password is entered. 
The following options are exceptions:
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							•If System Password is not Enabled and is not locked through the Password Status option, you can assign a system 
password.
•You cannot disable or change an existing system password.
NOTE: You can use the Password Status option in conjunction with the Setup Password option to protect the 
system password from unauthorized changes.
Entering The UEFI Boot Manager
NOTE: Operating systems must be 64-bit UEFI-compatible (for example, Microsoft Windows Server 2008 x64 
version) to be installed from the UEFI boot mode. DOS and 32-bit operating systems can only be installed from the  BIOS boot mode.
The Boot Manager enables you to:
•Add, delete, and arrange boot options.
•Access System Setup and BIOS-level boot options without restarting.
To enter the Boot Manager:
1.Turn on or restart your system.
2.Press  after you see the following message:
 = UEFI Boot Manager
If your operating system begins to load before you press , allow the system to finish booting, and then restart 
your system and try again.
Using The Boot Manager Navigation Keys
KeyDescriptionUp arrowMoves to the previous field.Down arrowMoves to the next field.Allows you to type in a value in the selected field (if applicable) or follow the link in the field.SpacebarExpands or collapses a drop-down list, if applicable.Moves to the next focus area.
NOTE: For the standard graphics browser only.
Moves to the previous page till you view the main screen. Pressing  in the main screen  exits the Boot Manager and proceeds with system boot.Displays the System Setup help file.
NOTE: For most of the options, any changes that you make are recorded but do not take effect until you restart the 
system.
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							Boot Manager ScreenMenu ItemDescriptionContinue Normal 
BootThe system attempts to boot to devices starting with the first item in the boot order. If the boot  attempt fails, the system continues with the next item in the boot order until the boot is 
successful or no more boot options are found.BIOS Boot MenuDisplays the list of available BIOS boot options (marked with asterisks). Select the boot option  you wish to use and press .UEFI Boot MenuDisplays the list of available UEFI boot options (marked with asterisks). Select the boot option you wish to use and press . The UEFI Boot Menu enables you to 
Add Boot Option, 
Delete Boot Option, or Boot From File.
Driver Health MenuDisplays a list of the drivers installed on the system and their health status.Launch System SetupEnables you to access the System Setup.System UtilitiesEnables you to access the BIOS Update File Explorer, run the Dell Diagnostics program, and reboot the system.
UEFI Boot Menu
Menu ItemDescriptionSelect UEFI Boot 
OptionDisplays the list of available UEFI boot options (marked with asterisks), select the boot option  you wish to use and press .Add Boot OptionAdds a new boot option.Delete Boot OptionDeletes an existing boot option.Boot From FileSets a one-time boot option not included in the boot option list.
Embedded System Management
The Dell Lifecycle Controller provides advanced embedded systems management throughout the server’s lifecycle. The 
Lifecycle Controller can be started during the boot sequence and can function independently of the operating system.
NOTE: Certain platform configurations may not support the full set of features provided by the Lifecycle Controller.
For more information about setting up the Lifecycle Controller, configuring hardware and firmware, and deploying the  operating system, see the Lifecycle Controller documentation at 
dell.com/support/manuals.
iDRAC Settings Utility
The iDRAC Settings utility is an interface to setup and configure the iDRAC parameters using UEFI. You can enable or 
disable various iDRAC parameters using the iDRAC Settings Utility.
NOTE: Accessing some of the features on the iDRAC Settings Utility requires the iDRAC7 Enterprise License 
upgrade.
For more information on using iDRAC, see the iDRAC7 User's Guide under Software → Systems Management → Dell 
Remote Access Controllers
, at dell.com/support/manuals.
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							Entering The iDRAC Settings Utility
1.Turn on or restart the managed system.
2.Press  during Power-on Self-test (POST).
3.In the System Setup Main Menu page, click iDRAC Settings.
The iDRAC Settings screen is displayed.
Changing The Thermal Settings
The iDRAC Settings utility enables you to select and customize the thermal control settings for your system.
1.Enter the iDRAC Settings utility.
2.Under iDRAC Settings → Thermal → User Option, select between the following options:
–Default
–Maximum Exhaust Temperature
–Fan Speed Offset
NOTE: When the User Option is set to the default Auto setting, the user option cannot be modified.
3.Set the Maximum Air Exhaust Temperature or the Fan Speed Offset fields.
4.Click Back → Finish → Yes.
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							3
Installing System Components
Recommended Tools
You may need the following items to perform the procedures in this section:
•Key to the system keylock
•#2 Phillips screwdriver
•T10 and T15 Torx screwdrivers
•Wrist grounding strap connected to ground
Front Bezel (Optional)
Installing The Front Bezel
1.Hook the right end of the bezel onto the chassis.
2.Fit the free end of the bezel onto the system.
3.Secure the bezel with the keylock.
Figure 9. Installing and Removing the Front Bezel
1.release latch
2.keylock
3.front bezel
4.locking hook
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							Removing The Front Bezel
1.Unlock the keylock at the left end of the bezel.
2.Lift the release latch next to the keylock.
3.Rotate the left end of the bezel away from the front panel.
4.Unhook the right end of the bezel and pull the bezel away from the system.
Opening And Closing The System
WARNING: Whenever you need to lift the system, get others to assist you. To avoid injury, do not attempt to lift the 
system by yourself.
WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electric 
shock.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the safety instructions that came with the product.
CAUTION: Do not operate the system without the cover for a duration exceeding five minutes.
Opening The System
NOTE: It is recommended that you always use a static mat and static strap while working on components in the 
interior of the system.
1.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2.Rotate the latch release lock counter clockwise to the unlocked position.
3.Lift the latch on top of the system and slide the cover back.
4.Grasp the cover on both sides and carefully lift the cover away from the system.
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							Figure 10. Opening and Closing the System
1.system cover
2.latch
3.latch release lock
Closing The System
1.Lift the latch on the cover.
2.Place the cover onto the chassis and offset the cover slightly back so that it clears the chassis hooks and lays flush on the chassis.
3.Push down the latch to move the cover into the closed position.
4.Rotate the latch release lock in a clockwise direction to secure the cover.
5.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Inside The System
CAUTION: Many repairs may only be done by a certified service technician. You should only perform 
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or 
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your 
warranty. Read and follow the safety instructions that came with the product.
NOTE: Components that are hot-swappable are marked orange and touch points on the components are marked 
blue.
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							Figure 11. Inside the System—With a Non-Redundant Power Supply
1.cooling shroud
2.power supply unit
3.storage controller card
4.expansion-card riser 2
5.expansion card
6.expansion-card riser 1
7.heat sink for processor 2
8.DIMMs (12)
9.cooling fans (5)
10.optical drive
11.hard drives (4)
12.front I/O panel
13.cable routing latch
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