Dell R 420 Manual

							Installing The Optical Drive In Hot-Swappable Hard-Drive Systems
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.If installed, remove the front bezel.
2.Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
3.Open the system.
4.To remove the optical drive blank, press the blue release tab at the back of the blank and push the blank out of the 
system.
5.Align the optical drive with the optical drive slot on the front of chassis.
6.Slide the optical drive into the slot until the latch snaps into place.
7.Connect the power/data cable to the back of the drive.
8.Route the power/data cable underneath the cable routing latch of the system.
9.Connect the power/data cable to the connectors on the system board.
10.Close the system.
11.If applicable, install the front bezel.
12.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Removing The Optical Drive In Cabled Hard-Drive Systems
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.If installed, remove the front bezel.
2.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and 
peripherals.
3.Open the system.
4.Disconnect the power/data cable from the back of the optical drive.
Note the routing of the power/data cable as you remove them from the system board and the optical drive. You 
must route these cables properly when you replace them to prevent them from being pinched or crimped.
5.Pull the release latch and disengage the optical drive from the notches on the metal standoffs.
6.Lift the optical drive out of the system.
7.If you are not adding a new optical drive, install the optical-drive blank.
8.Close the system.
9.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
10.If applicable, install the front bezel.
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							Figure 27. Removing and Installing the Optical Drive (Cabled Hard-Drive Systems)
1.data cable
2.power cable
3.optical drive
4.release latch
5.metal standoffs (4)
6.notches (2)
Installing The Optical Drive In Cabled Hard-Drive Systems
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.If installed, remove the front bezel.
2.Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
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							3.Open the system.
4.Align the two notches on the metal standoffs with the slots on the side of the optical drive.
5.Slide the optical drive into the notches until it is seated firmly and the release latch snaps into place.
6.Connect the power cable.
7.Connect the data cable to the back of the drive and to the SATA connector on the system board.
NOTE: Route and secure the cables using the cable routing latch on the system chassis to prevent them from 
being pinched or crimped.
8.Close the system.
9.If applicable, install the front bezel.
10.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Cooling Fans
Your system supports:
•Up to five cooling fans in a non-redundant power supply configuration.
•Up to six cooling fans in a redundant power supply configuration.
NOTE: Fan 1 must be installed in a redundant power supply configuration.
NOTE: Hot-swap removal or installation of the fans is not supported.
NOTE: In the event of a problem with a particular fan, the fan number is referenced by the system’s management 
software, allowing you to easily identify and replace the proper fan by noting the fan numbers on the cooling fan  assembly.
Removing A Cooling Fan
WARNING: Opening or removing the system cover when the system is on may expose you to a risk of electric 
shock. Exercise utmost care while removing or installing cooling fans.
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 with the cover removed for a duration exceeding five minutes.
NOTE: The procedure for removing each fan is identical.
1.Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
2.Open the system.
3.Remove the cooling shroud or power distribution board shroud as applicable.
4.Disconnect the fan's power cable from the power cable connector on the system board or power distribution board 
as applicable.
5.Lift the fan out of the cooling-fan bracket.
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							Figure 28. Removing and Installing a Cooling Fan
1.cooling fan
2.power cable connector
3.cooling-fan bracket
Installing A Cooling Fan
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.Turn off the system, including any attached peripherals, and disconnect the system from its electrical outlet.
2.Open the system.
3.Remove the cooling shroud or power distribution board shroud as applicable.
4.Facing the front of the system, lower the fan into the cooling-fan bracket.
NOTE: When aligned correctly, the fan cable is on the left of the fan.
5.Connect the fan's power cable to the power cable connector on the system board or power distribution board as  applicable.
6.Replace the cooling shroud or power distribution board shroud as applicable.
7.Close the system.
8.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
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							Internal USB Memory Key (Optional)
An optional USB memory key installed inside your system can be used as a boot device, security key, or mass storage device. The USB connector must be enabled by the 
Internal USB Port option in the Integrated Devices screen of the 
System Setup.
To boot from the USB memory key, configure the USB memory key with a boot image and then specify the USB memory  key in the boot sequence in the System Setup.
NOTE: The internal USB connector (INT_USB) is located on expansion-card riser 2.
Replacing The Internal USB Key
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.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and 
peripherals.
2.Open the system.
3.Locate the USB connector (INT_USB) on the expansion-card riser 2.
4.If installed, remove the USB key.
5.Insert the USB key into the USB connector.
6.Close the system.
7.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
8.Enter the System Setup and verify that the USB key is detected by the system.
Figure 29. Replacing the Internal USB Key
1.USB memory key
2.USB memory key connector
Expansion Cards And Expansion-Card Risers
NOTE: A missing or an unsupported expansion-card riser logs an SEL event. It does not prevent your system from 
powering on and no BIOS POST message or F1/F2 pause is displayed.
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							Expansion Card Installation Guidelines
Your system supports PCI Express Generation 2 and Generation 3 expansion cards.
NOTE: If you install a second processor, you must upgrade expansion card riser 1 to optimize PCIe slot 1 speed.
The following table provides the riser configurations for single- and dual-processor systems:
Table 3. Riser Configuration for Single- and Dual-Processor SystemsNumber of ProcessorsExpansion Card ConnectorRiser 1Riser 2OnePCIE_G2_X4
iDRAC_EnterprisePCIE_G3_X16TwoPCIE_G3_X16
iDRAC_EnterprisePCIE_G3_X16
NOTE: The expansion-card risers listed in the above table cannot be interchanged between single- and dual- 
processor systems.
The following table provides a guide for installing expansion cards to ensure proper cooling and mechanical fit. The  expansion cards with the highest priority must be installed first using the slot priority indicated. All other expansion 
cards must be installed in card priority and slot priority order.
Table 4. Expansion-Card Installation PriorityCard PriorityCard TypeHeightSlot PriorityMax Allowed Per Slot1RAIDFull Height
Low Profile
212Converged Network  Adapters (CNAs)Full Height
Low Profile
2 or 11310 Gb NICsFull Height
Low Profile
2 or 114FC8 HBAFull Height
Low Profile
2 or 115FC4 HBAFull Height
Low Profile
2 or 1161 Gb NICsFull Height
Low Profile
2 or 117Non-RAIDFull Height
Low Profile
2 or 1166 
						

							Removing An Expansion Card
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.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and 
peripherals.
2.Open the system.
3.Disconnect any cables connected to the expansion card or expansion-card riser.
4.Lift the expansion-card latch.
5.To remove an expansion card from riser 2, pull the blue latch on the expansion-card holder.
6.Hold the expansion card by its edges and remove it from the expansion-card connector on the riser.
7.If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening and 
close the expansion-card latch.
NOTE: You must install a filler bracket over an empty expansion slot to maintain Federal Communications 
Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in 
proper cooling and airflow inside the system.
8.Close the system.
9.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Figure 30. Removing and Installing the Expansion Card from Expansion-Card Riser 1
1.expansion card
2.expansion-card latch
3.riser touch points (2)
4.expansion-card riser 1
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							Figure 31. Removing and Installing the Expansion Card from Expansion-Card Riser 2
1.expansion-card riser 2
2.expansion-card riser touch points (2)
3.expansion-card latch
4.expansion card
5.expansion-card holder
Installing An Expansion Card
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.Unpack the expansion card and prepare it for installation.
For instructions, see the documentation accompanying the card.
2.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and  peripherals.
3.Open the system.
4.Locate the expansion-card connector on the riser.
5.Open the expansion-card latch and remove the filler bracket.
6.Holding the card by its edges, position the card so that the card-edge connector aligns with the expansion-card connector.
7.Insert the card-edge connector into the expansion-card connector until the card is fully seated.
NOTE: Ensure that the expansion card is properly seated along the chassis, so that expansion-card latch can 
be closed.
8.Press the release latch on the expansion-card holder and move the expansion card holder so that it supports the 
expansion card on expansion-card riser 2.
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							NOTE: Ensure that the expansion card bracket is attached properly to the chassis, so that expansion-card 
latch can be inserted back to chassis.
9.If applicable, connect cables to the expansion card.
10.Close the system.
11.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
12.Install any device drivers required for the card as described in the documentation for the card.
Removing Expansion-Card Risers 1 And 2
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.Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and 
peripherals.
2.Open the system.
3.If installed, remove the expansion-card.
4.Holding the touch points, lift the expansion-card riser from the riser connector on the system board.
Figure 32. Removing and Installing the Expansion-Card Riser 1
1.expansion-card riser 1
2.expansion-card riser touch points (2)
3.riser guides (2)
4.connector
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							Figure 33. Removing and Installing the Expansion-Card Riser 2
1.chassis intrusion switch
2.expansion-card riser touch points
3.expansion-card riser 2
4.expansion-card riser 2 connector
5.riser guides (2)
5.Replace the expansion-card riser.
6.Close the system.
7.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Installing Expansion-Card Risers 1 And 2
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.If applicable, reinstall the expansion card(s) into the expansion-card riser.
2.Align the expansion-card riser with the connector and the riser guides on the system board.
3.Lower the expansion-card riser into place until the expansion-card riser connector is fully seated in the connector.
4.Close the system.
5.Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
6.Install any device drivers required for the card as described in the documentation for the card.
iDRAC Ports Card (Optional)
The iDRAC Ports card supports:
•one 1GbE Ethernet port
•SD vFlash card
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