Dell R730 Manual

							CAUTION: For AC PSUs, use only PSUs with the Extended Power Performance (EPP) label on the back. Mixing PSUs 
from previous generations of systems can result in a PSU mismatch condition or failure to turn on.
NOTE: Titanium PSU is nominally rated for 200 V AC to 240 V AC input only.
NOTE: When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without 
redundancy) is  configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs 
when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs will be put into standby when system utilization  is low in order to maximize  efficiency.  
NOTE: If two PSUs are used, they must be of the same maximum output power.
Hot spare feature
Your system supports the hot spare feature that  signi
						

							Figure 71. Removing the PSU blank
1.PSU blank2.PSU bay
Installing the power supply unit blank
Install the power supply unit (PSU) blank only in the second PSU bay.
Align the PSU blank with the PSU bay and push it into the chassis until it clicks into place.
Figure 72. Installing the PSU blank
1.PSU blank2.PSU bay
Removing an AC power supply unit
Prerequisites
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 are shipped with your product.
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							CAUTION: The system needs one power supply for normal operation. On power-redundant systems, remove and replace 
only one power supply at a time in a system that is powered on.
NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with the power supply unit 
(PSU) removal. For information about the cable management arm, see the system
						

							NOTE: When installing, hot swapping, or hot-adding a new PSU, wait for 15 seconds for the system to recognize the 
PSU and determine its status. The power supply redundancy may not occur until discovery is complete. Wait until  the new PSU is discovered and enabled before you remove the other PSU. The PSU status indicator turns green to  signify that the PSU is functioning properly.
Figure 74. Installing an AC PSU
1.release latch2.PSU cable connector3.PSU4.power connector5.PSU handle
Wiring instructions for a DC power supply unit
Your system supports up to two 
						

							NOTE: Use alpha wire part number 3080 or equivalent (65/30 stranding)
Required wires

						

							Figure 76. Removing the safety ground wire
1.#6-32 nut2.spring washer3.grounding post4.safety ground wire
Assembling the DC input power wires
Prerequisites
WARNING: For equipment using –(48–60) V DC power supply units (PSUs), a qualified electrician must perform all 
connections to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself.  All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is 
not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the 
product.
Steps
1.Strip the insulation from the ends of the DC power wires, exposing approximately 13 mm (0.5 inch) of copper wire.
WARNING: Reversing polarity when connecting DC power wires can permanently damage the power supply or the 
system.
2.Insert the copper ends into the mating connectors and tighten the captive screws at the top of the mating connector using a  Phillips #2 screwdriver.
WARNING: To protect the power supply from electrostatic discharge, the captive screws must be covered with the 
rubber cap before inserting the mating connector into the power supply.
3.Rotate the rubber cap clockwise to  
						

							Figure 77. Assembling the DC Input Power Wires
1.DC wire RTN2.DC power connector3.captive screw (2)4.rubber cap5.DC power socket6.DC wire 
						

							CAUTION: The system needs one power supply for normal operation. On power-redundant systems, remove and replace 
only one power supply at a time in a system that is powered on.
NOTE: You may have to unlatch and lift the optional cable management arm if it interferes with power supply removal. 
For information about the cable management arm, see the rack documentation of your system.
Steps
1.Disconnect the power wires from the power source and the connector from the PSU you intend to remove.
2.Disconnect the safety ground wire.
3.Press the release latch and slide the PSU out of the chassis by using the PSU handle.
Figure 79. Removing a DC PSU
1.release latch2.power supply status indicator3.PSU4.power connector5.PSU handle
Installing a DC power supply unit
Prerequisites
WARNING: For equipment using –(48–60) V DC power supply units (PSUs), a  qualified electrician must perform all 
connections to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself.  All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is 
not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the 
product.
1.Follow the safety guidelines listed in the Safety instructions section.
2.Follow the procedure listed in the Before working inside your system section.
3.If installed, remove the PSU blank.
4.Verify that both the PSUs are of the same type and have the same maximum output power.
NOTE: The maximum output power (shown in watts) is listed on the PSU label.
Steps
1.Slide the PSU into the chassis until the PSU is fully seated and the release latch snaps into place.
NOTE: If you have unlatched the cable management arm, relatch it. For information about the cable management 
arm, see the system
						

							CAUTION: When connecting the power wires, ensure that you secure the wires with the strap to the PSU handle.
4.Connect the wires to a DC power source.
NOTE: When installing, hot-swapping, or hot-adding a new PSU, wait for 15 seconds for the system to recognize the 
PSU and determine its status. The PSU status indicator turns green to signify that the PSU is functioning properly.
Figure 80. Installing a DC PSU
1.release latch2.power supply status indicator3.PSU4.power connector5.PSU handle
Next steps

						

							c.Power supply unit(s)
d.All expansion card risers
e.Integrated storage controller card
f.Internal dual SD module
g.Internal USB key (if installed)
h.PCIe card holder
i.Cable retention bracket
j.Heat sink(s)/heat sink blank(s) 
k.Processors(s)/processor blank(s)
CAUTION: To prevent damage to the processor pins when replacing a faulty system board, ensure that you 
cover the processor socket with the processor protective cap.
l.Memory modules and memory module blanks
m.Network daughter card
Steps
1.Disconnect all cables from the system board.
CAUTION: Take care not to damage the system  identification button while removing the system board from the 
chassis.
CAUTION: Do not lift the system board by holding a memory module, processor, or other components.
2.Hold the system board holder, lift the blue release pin, lift the system board, and then slide it toward the front of the chassis.
Sliding the system board toward the front of the chassis disengages the connectors from the back of the chassis slots.
3.Lift the system board out of the chassis.
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