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...

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...

•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 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...

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...

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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...

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...

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...

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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