Dell R 420 Manual

							5.If SD card 1 has failed, remove the card from SD card slot 1. If SD card 2 has failed, install a new SD card in SD card slot 2 and proceed to step 7.
6.Remove the card present in SD card slot 2 and insert it into SD card slot 1.
7.Insert the new SD card into SD card slot 2.
8.Close the system.
9.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
10.Enter the System Setup and ensure that the Internal SD Card Port and Internal SD Card Redundancy mode is 
enabled.
11.Check if the SD card is functioning properly.
If the problem persists, see Getting Help.
Troubleshooting An Optical Drive
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.
1.Try using a different CD or DVD.
2.Enter the System Setup and ensure that the integrated SATA controller and the drive's SATA port are enabled.
3.Run the appropriate diagnostic test.
4.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
5.Open the system.
6.Remove the front bezel.
7.Ensure that the interface cable is securely connected to the optical drive and to the controller.
8.Ensure that a power cable is properly connected to the drive.
9.Close the system.
If the problem is not resolved, see Getting Help.
Troubleshooting A Tape Backup Unit
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.
1.Try using a different tape cartridge.
2.Ensure that the device drivers for the tape backup unit are installed and are configured correctly. See your tape 
drive documentation for more information about device drivers.
3.Reinstall the tape-backup software as instructed in the tape-backup software documentation.
4.Ensure that the tape drive’s interface cable is fully connected to the external port on the controller card.
5.Check that the controller card is properly installed:
a)Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
b)Open the system.
c)Reseat the controller card in the expansion card slot.
d)Close the system.
e)Turn on the system and attached peripherals.
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							6.Run the appropriate diagnostics test.
If you cannot resolve the problem, see Getting Help.
Troubleshooting A Hard Drive
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: This troubleshooting procedure can erase data stored on the hard drive. Before you proceed, back up 
all files on the hard drive.
1.Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
Depending on the results of the diagnostics test, proceed as needed through the following steps.
2.If your system has a RAID controller and your hard drives are configured in a RAID array, perform the following 
steps:
a)Restart the system and press  during system startup to run the Lifecycle Controller, and then run the  Hardware Configuration wizard to check the RAID configuration.
See the Lifecycle Controller documentation or online help for information on RAID configuration.
b)Ensure that the hard drive(s) have been configured correctly for the RAID array.
c)Take the hard drive offline and reseat the drive.
d)Exit the configuration utility and allow the system to boot to the operating system.
3.Ensure that the required device drivers for your controller card are installed and are configured correctly. See the 
operating system documentation for more information.
4.Restart the system and enter the System Setup.
5.Verify that the controller is enabled and the drives are displayed in the System Setup.
If the problem persists, try troubleshooting the expansion cards or see Getting Help.
Troubleshooting A Storage Controller
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: When troubleshooting a SAS or PERC controller, also see the documentation for your operating system and 
the controller.
1.Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
2.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3.Open the system.
4.Verify that the installed expansion cards are compliant with the expansion card installation guidelines.
5.Ensure that each expansion card is firmly seated in its connector.
6.Close the system
7.Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
8.If the problem is not resolved, turn off the system and attached peripherals, and disconnect the system from the  electrical outlet.
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							9.Open the system.
10.Remove all expansion cards installed in the system.
11.Close the system.
12.Reconnect the system to the electrical outlet, and turn on the system and attached peripherals.
13.Run the appropriate diagnostic test. For more information, see Using System Diagnostics. If the tests fail, see Getting Help.
14.For each expansion card you removed in step 10, perform the following steps:
a.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
b.Open the system.
c.Reinstall one of the expansion cards.
d.Close the system.
e.Run the appropriate diagnostic test. For more information, see Using System Diagnostics.
If the tests fail, see Getting Help.
Troubleshooting Expansion Cards
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: When troubleshooting an expansion card, see the documentation for your operating system and the 
expansion card.
1.Run the appropriate diagnostic test.
2.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3.Open the system.
4.Ensure that each expansion card is firmly seated in its connector.
5.Close the system.
6.If the problem is not resolved, turn off the system and attached peripherals, and disconnect the system from the  electrical outlet.
7.Open the system.
8.Remove all expansion cards installed in the system.
9.Close the system.
10.Run the appropriate diagnostic test.
If the tests fail, see Getting Help.
11.For each expansion card you removed in step 8, perform the following steps:
a)Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
b)Open the system.
c)Reinstall one of the expansion cards.
d)Close the system.
e)Run the appropriate diagnostic test.
If a problem is still indicated, see Getting Help.
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							Troubleshooting Processors
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.
1.Run the appropriate diagnostics test.
2.Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
3.Open the system.
4.Ensure that the processor and heat sink are properly installed.
5.Close the system.
6.Run the appropriate diagnostic test.
If a problem is still indicated, see Getting Help.
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							5
Using System Diagnostics
If you experience a problem with your system, run the system diagnostics before contacting Dell for technical assistance. The purpose of running system diagnostics is to test your system hardware without requiring additional  equipment or risking data loss. If you are unable to fix the problem yourself, service and support personnel can use the 
diagnostics results to help you solve the problem.
Dell Online Diagnostics
Dell Online Diagnostics, a stand-alone suite of diagnostic programs or test modules, allows you to run diagnostic tests  on the systems in a production environment, and helps you ensure maximum uptime of your systems. Online Diagnostics  allows you to run diagnostic tests on chassis and storage components such as hard drives, physical memory, and 
network interface cards (NICs). You can use the graphical user interface (GUI) or the command line interface (CLI) to run 
diagnostic tests on the hardware that Online Diagnostics discovers on your system. For information about using 
diagnostics, see the 
Dell Online PowerEdge Diagnostics User’s Guide under Software → Serviceability Tools, at 
dell.com/support/manuals.
Dell Embedded System Diagnostics
NOTE: Also known as Enhanced Pre-boot System Assessment (ePSA) diagnostics.
The embedded system diagnostics provides a set of options for particular device groups or devices allowing you to:
•Run tests automatically or in an interactive mode
•Repeat tests
•Display or save test results
•Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
•View status messages that inform you if tests are completed successfully
•View error messages that inform you of problems encountered during testing
When To Use The Embedded System Diagnostics
If a major component or device in the system does not operate properly, running the embedded system diagnostics may 
indicate component failure.
Running The Embedded System Diagnostics
The embedded system diagnostics program is run from the Dell Lifecycle Controller.
CAUTION: Use the embedded system diagnostics to test only your system. Using this program with other systems 
may cause invalid results or error messages.
1.As the system boots, press .
2.Use the up and down arrow keys to select System Utilities → Launch Dell Diagnostics .
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							The ePSA Pre-boot System Assessment window is displayed, listing all devices detected in the system. The 
diagnostics starts executing the tests on all the detected devices.
System Diagnostic Controls
MenuDescriptionConfigurationDisplays the configuration and status information of all detected devices.ResultsDisplays the results of all tests that are executed.System HealthProvides the current overview of the system performance.Event LogDisplays a time-stamped log of the results of all tests run on the system. This is displayed if at  least one event description is recorded.
For information about embedded system diagnostics, see the Dell Enhanced Pre-boot System Assessment User Guide at 
dell.com/support/manuals.
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							6
Jumpers And Connectors
System Board Jumper Settings
For information on resetting the password jumper to disable a password, see Disabling A Forgotten Password.
Table 5. System Board Jumper SettingsJumperSettingDescriptionPWRD_EN
 (default)
The password feature is enabled (pins 2–4).The password feature is disabled (pins 4–6). iDRAC local 
access is unlocked at the next AC power cycle.NVRAM_CLR
 (default)
The configuration settings are retained at system boot 
(pins 3–5).The configuration settings are cleared at the next system 
boot (pins 1–3).117 
						

							System Board Connectors
Figure 61. System Board Jumpers and Connectors
ItemConnectorDescription1INT_STORAGEStorage controller card connector2ID_BTNSystem identification button3CMA_JACKSystem identification connector4USB 2USB connector5USB 1USB connector6IO_RISER2Riser 2 connector7NIC2Network connector8NIC1Network connector9VGAVideo connector10COMSerial connector11IO_RISER1Riser 1 connector12CPU2Processor socket 213FAN6Cooling fan connector14FAN5Cooling fan connector118 
						

							ItemConnectorDescription15B1, B4, B2, B5, B3, B6Memory module sockets16FAN4Cooling fan connector17FAN3Cooling fan connector18PWR_CONN_18-pin power connector19FAN2Cooling fan connector20A1, A4, A2, A5, A3, A6Memory module sockets21BP_SIGBackplane signal connector22PWR_CONN_224-pin power connector23CPU1Processor socket 124PDB_CONNPower distribution board connector25BATTERYBattery connector26CTRL_PNL_MBControl panel interface connector27SATA_A-DSATA connector A-D28SATA_ESATA connector E29SAS_ASAS connector A30FP_USBFront panel USB connector31IDSDMInternal Dual SD Module connector32SAS_BSAS connector B
Disabling A Forgotten Password
The system's software security features include a system password and a setup password. The password jumper enables these password features or disables them and clears any password(s) currently in use.
CAUTION: See "Protecting Against Electrostatic Discharge" in the safety instructions that came with the system.
1.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2.Open the system.
3.Remove the jumper plug from the password jumper.
4.Close the system.
The existing passwords are not disabled (erased) until the system boots with the password jumper plug removed. 
However, before you assign a new system and/or setup password, you must install the jumper plug.
NOTE: If you assign a new system and/or setup password with the jumper plug still removed, the system 
disables the new password(s) the next time it boots.
5.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
6.Open the system.
7.Install the jumper plug on the password jumper.
8.Close the system.
9.Assign a new system and/or setup password.
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