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...

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...

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...

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...

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...

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...