Dell EMC PowerEdge R540 Manual

Dell EMC PowerEdge R540
Installation and Service Manual
Regulatory Model: E46S Series
Regulatory Type: E46S001

Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
Copyright ©2017 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other
trademarks may be trademarks of their respective owners.
2017 - 09
Rev. A00

Contents
1 Dell EMC PowerEdge R540 overview.............................................................................................................8
Supported congurations for the PowerEdge R540 system........................................................................................8
Front view of the system.................................................................................................................................................. 9
Left control panel view............................................................................................................................................... 11
Right control panel view............................................................................................................................................ 13
Back panel features..........................................................................................................................................................15
Drive indicator codes........................................................................................................................................................17
NIC indicator codes.......................................................................................................................................................... 18
Power supply unit indicator codes..................................................................................................................................18
LCD panel..........................................................................................................................................................................20
Viewing Home screen.................................................................................................................................................21
Setup menu................................................................................................................................................................ 22
View menu.................................................................................................................................................................. 22
Locating the Service Tag of your system......................................................................................................................22
2 Documentation resources............................................................................................................................ 24
3 Technical specications............................................................................................................................... 26
System dimensions.......................................................................................................................................................... 27
Chassis weight..................................................................................................................................................................27
Processor specications................................................................................................................................................. 28
PSU specications...........................................................................................................................................................28
System battery specications........................................................................................................................................ 28
Expansion bus specications..........................................................................................................................................28
Memory specications.................................................................................................................................................... 28
Drive specications..........................................................................................................................................................29
Drives...........................................................................................................................................................................29
Ports and connectors specications............................................................................................................................. 29
USB ports................................................................................................................................................................... 29
NIC ports.....................................................................................................................................................................29
Serial connector......................................................................................................................................................... 29
VGA ports................................................................................................................................................................... 29
Internal Dual SD Module............................................................................................................................................30
Video specications.........................................................................................................................................................30
Environmental specications..........................................................................................................................................30
Particulate and gaseous contamination specications ..........................................................................................31
Standard operating temperature..............................................................................................................................32
Expanded operating temperature............................................................................................................................ 32
Thermal restriction matrix.........................................................................................................................................33
4 Initial system setup and conguration..........................................................................................................35
Setting up your system................................................................................................................................................... 35
Contents 3

iDRAC conguration........................................................................................................................................................ 35
Options to set up iDRAC IP address........................................................................................................................35
Log in to iDRAC..........................................................................................................................................................36
Options to install the operating system.........................................................................................................................36
Methods to download rmware and drivers...........................................................................................................36
Downloading drivers and rmware...........................................................................................................................37
5 Pre-operating system management applications..........................................................................................38
Options to manage the pre-operating system applications........................................................................................38
System Setup................................................................................................................................................................... 38
Viewing System Setup.............................................................................................................................................. 39
System Setup details.................................................................................................................................................39
System BIOS.............................................................................................................................................................. 40
iDRAC Settings utility................................................................................................................................................ 59
Device Settings.......................................................................................................................................................... 59
Dell Lifecycle Controller...................................................................................................................................................59
Embedded system management............................................................................................................................. 60
Boot Manager.................................................................................................................................................................. 60
Viewing Boot Manager..............................................................................................................................................60
Boot Manager main menu........................................................................................................................................ 60
One-shot BIOS boot menu........................................................................................................................................61
System Utilities........................................................................................................................................................... 61
PXE boot............................................................................................................................................................................61
6 Installing and removing system components................................................................................................ 62
Safety instructions...........................................................................................................................................................62
Before working inside your system................................................................................................................................62
After working inside your system...................................................................................................................................62
Recommended tools........................................................................................................................................................62
Optional front bezel......................................................................................................................................................... 63
Removing the front bezel..........................................................................................................................................63
Installing the front bezel............................................................................................................................................64
System cover................................................................................................................................................................... 65
Removing the system cover.....................................................................................................................................65
Installing the system cover....................................................................................................................................... 66
Backplane cover...............................................................................................................................................................67
Removing the backplane cover................................................................................................................................ 67
Installing the backplane cover.................................................................................................................................. 68
Inside the system............................................................................................................................................................. 69
Air shroud...........................................................................................................................................................................71
Removing the air shroud............................................................................................................................................71
Installing the air shroud..............................................................................................................................................73
Cooling fans...................................................................................................................................................................... 75
Removing cooling fan................................................................................................................................................ 76
Installing cooling fan...................................................................................................................................................77
Internal PERC riser...........................................................................................................................................................79
4Contents

Removing internal PERC riser.................................................................................................................................. 79
Installing internal PERC riser..................................................................................................................................... 81
Removing PERC card from internal PERC riser.....................................................................................................82
Installing PERC card into the internal PERC riser..................................................................................................83
Intrusion switch................................................................................................................................................................ 84
Removing intrusion switch........................................................................................................................................84
Installing intrusion switch..........................................................................................................................................85
Drives.................................................................................................................................................................................86
Removing a drive blank..............................................................................................................................................87
Installing a drive blank................................................................................................................................................87
Removing a 2.5 inch drive from a 3.5 inch drive adapter......................................................................................88
Installing a 2.5 inch drive into a 3.5 inch drive adapter..........................................................................................89
Removing a 3.5 inch drive adapter from a 3.5 inch drive carrier......................................................................... 90
Installing a 3.5 inch drive adapter into the 3.5 inch drive carrier...........................................................................91
Removing a drive carrier........................................................................................................................................... 92
Installing a drive carrier..............................................................................................................................................93
Removing the drive from the drive carrier..............................................................................................................94
Installing a drive into the drive carrier..................................................................................................................... 95
System memory............................................................................................................................................................... 96
General memory module installation guidelines...................................................................................................... 97
Mode-specic guidelines.......................................................................................................................................... 98
Removing a memory module....................................................................................................................................99
Installing a memory module.....................................................................................................................................100
Processors and heat sinks..............................................................................................................................................101
Removing a processor and heat sink module........................................................................................................ 101
Removing the processor from the processor and heat sink module................................................................. 102
Installing the processor into a processor and heat sink module......................................................................... 104
Installing a processor and heat sink module..........................................................................................................106
Expansion cards and expansion card risers.................................................................................................................108
Expansion card installation guidelines.................................................................................................................... 108
Removing expansion card from the expansion card riser..................................................................................... 111
Installing expansion card into the expansion card riser.........................................................................................115
Removing expansion card from the system board................................................................................................118
Installing expansion card on the system board..................................................................................................... 120
Removing an expansion card riser..........................................................................................................................122
Installing an expansion card riser............................................................................................................................ 125
Optional IDSDM or vFlash card.................................................................................................................................... 128
Removing the MicroSD card...................................................................................................................................128
Installing the MicroSD card..................................................................................................................................... 128
Removing the optional IDSDM or vFlash card......................................................................................................129
Installing optional IDSDM or vFlash card............................................................................................................... 129
LOM riser card................................................................................................................................................................130
Removing the LOM riser card.................................................................................................................................130
Installing the LOM riser card....................................................................................................................................131
Drive backplane...............................................................................................................................................................132
Contents 5

Removing the drive backplane ...............................................................................................................................134
Installing the drive backplane..................................................................................................................................135
Removing the 3.5 inch rear drive backplane.........................................................................................................136
Installing the 3.5 inch rear drive backplane............................................................................................................137
Cable routing...................................................................................................................................................................139
Rear drive cage...............................................................................................................................................................142
Removing the rear drive cage.................................................................................................................................142
Installing the rear drive cage................................................................................................................................... 143
System battery................................................................................................................................................................144
Replacing the system battery................................................................................................................................. 144
Optional internal USB memory key.............................................................................................................................. 145
Replacing optional internal USB memory key....................................................................................................... 146
Optical drive (optional).................................................................................................................................................. 146
Removing the optical drive......................................................................................................................................146
Installing the optical drive........................................................................................................................................ 147
Power supply units......................................................................................................................................................... 148
Hot spare feature......................................................................................................................................................149
Removing a power supply unit blank......................................................................................................................149
Installing a power supply unit blank........................................................................................................................150
Removing a power supply unit................................................................................................................................150
Installing a power supply unit...................................................................................................................................151
Removing a non-redundant cabled AC power supply unit..................................................................................152
Installing a non-redundant cabled AC power supply unit.................................................................................... 153
Removing a DC power supply unit......................................................................................................................... 154
Installing DC power supply unit.............................................................................................................................. 155
Wiring instructions for a DC power supply unit....................................................................................................155
Power interposer board................................................................................................................................................. 157
Removing power interposer board......................................................................................................................... 157
Installing power interposer board........................................................................................................................... 158
Control panel...................................................................................................................................................................159
Removing the left control panel............................................................................................................................. 159
Installing the left control panel................................................................................................................................160
Removing the right control panel............................................................................................................................161
Installing the right control panel..............................................................................................................................162
System board..................................................................................................................................................................163
Removing the system board................................................................................................................................... 163
Installing the system board......................................................................................................................................165
Restoring the Service Tag using Easy Restore........................................................................................................... 167
Manually update the Service Tag............................................................................................................................167
Trusted Platform Module...............................................................................................................................................168
Replacing the Trusted Platform Module................................................................................................................168
Initializing TPM for BitLocker users....................................................................................................................... 169
Initializing the TPM 1.2 for TXT users....................................................................................................................169
7 Using system diagnostics............................................................................................................................170
Dell Embedded System Diagnostics.............................................................................................................................170
6Contents

Running the Embedded System Diagnostics from Boot Manager.....................................................................170
Running the Embedded System Diagnostics from the Dell Lifecycle Controller.............................................. 170
System diagnostic controls...................................................................................................................................... 171
8 Jumpers and connectors ............................................................................................................................172
System board jumpers and connectors........................................................................................................................173
System board jumper settings.......................................................................................................................................174
Disabling forgotten password........................................................................................................................................175
9 Getting help................................................................................................................................................176
Contacting Dell................................................................................................................................................................176
Documentation feedback...............................................................................................................................................176
Accessing system information by using QRL.............................................................................................................. 176
Quick Resource Locator for R540..........................................................................................................................177
Receiving automated support with SupportAssist ....................................................................................................177
Contents 7

Dell EMC PowerEdge R540 overview
The PowerEdge R540 is a 2U, dual socket rack system with 8 x 3.5 inch drives or 12 x 3.5 inch drives system and supports up to:
• Two Intel Xeon Processor Scalable Family processors
• 16 DIMM slots
• 14 drives or solid-state drives
• Two redundant power supply units (PSU) or single cabled PSU
NOTE: All instances of SAS, SATA hard drives and SSDs are referred to as drives in this document, unless specied
otherwise.
Topics:
• Supported congurations for the PowerEdge R540 system
• Front view of the system
• Back panel features
• Drive indicator codes
• NIC indicator codes
• Power supply unit indicator codes
• LCD panel
• Locating the Service Tag of your system
Supported congurations for the PowerEdge R540
system
The Dell EMC PowerEdge R540 system supports the following congurations:
1
8 Dell EMC PowerEdge R540 overview

Figure 1. Supported congurations for a PowerEdge R540 system with rear drive
Front view of the system
The front view displays the features available on the front of the system.
Figure 2. Front view of 12 x 3.5 inch drive system
Dell EMC PowerEdge R540 overview 9

Figure 3. Front view of 8 x 3.5 inch drive system
Table 1. Features available on the front of the system
Item Ports, panels, and slots Icon Description
1 Left control panel N/A Contains the system health and system ID, status LED, and the
iDRAC Quick Sync 2 (wireless) indicator.
NOTE: The iDRAC Quick Sync 2 indicator is available only on
certain congurations.
• Status LED: Enables you to identify any failed hardware
components. There are up to ve status LEDs and an overall
system health LED (Chassis health and system ID) bar. For more
information, see the Status LED indicators section.
• Quick Sync 2 (wireless): Indicates a Quick Sync enabled system.
The Quick Sync feature is optional. This feature allows
management of the system by using mobile devices. This feature
aggregates hardware or rmware inventory and various system
level diagnostic and error information that can be used in
troubleshooting the system. For more information, see the
Integrated Dell Remote Access Controller User’s Guide at
Dell.com/idracmanuals.
2 Drive slots N/A Enable you to install drives that are supported on your system. For
more information about drives, see the Technical specications
section.
3 Right control panel N/A Contains the power button, USB ports, iDRAC Direct (Micro-AB
USB), VGA port.
4 Information tag N/A The Information Tag is a slide-out label panel that contains system
information such as Service Tag, NIC, MAC address, and so on. If you
have opted for secure default access to iDRAC, the Information tag
also contains the iDRAC secure default password.
5 Optical drive (optional) N/A One optional slim SATA DVD-ROM drive or DVD+/-RW drive.
NOTE: DVD devices are data only.
10 Dell EMC PowerEdge R540 overview

Left control panel view
Figure 4. Left control panel without optional iDRAC Quick Sync 2.0 indicator
Figure 5. Left control panel with optional iDRAC Quick Sync 2.0 indicator
Table 2. Left control panel
Item Indicator, button, or
connector
Icon Description
1 Status LED indicators N/A Indicate the status of the system. For more information, see the
Status LED indicators section.
2 System health and system
ID indicator
Indicates the system health. For more information, see the System
health and system ID indicator codes section.
3 iDRAC Quick Sync 2
wireless indicator (optional)
Indicates if the iDRAC Quick Sync 2 wireless option is activated. The
Quick Sync 2 feature allows management of the system using mobile
devices. This feature aggregates hardware/rmware inventory and
various system level diagnostic/error information that can be used in
troubleshooting the system. You can access system inventory, Dell
Lifecycle Controller logs or system logs, system health status, and
also congure iDRAC, BIOS, and networking parameters. You can also
launch the virtual Keyboard, Video, and Mouse (KVM) viewer and
virtual Kernel based Virtual Machine (KVM), on a supported mobile
device. For more information, see the Integrated Dell Remote Access
Controller User's Guide at Dell.com/idracmanuals.
Status LED indicators
NOTE: The indicators display solid amber if any error occurs.
Dell EMC PowerEdge R540 overview 11

Table 3. Status LED indicators and descriptions
Icon Description Condition Corrective action
Drive indicator The indicator turns solid amber if
there is a drive error. • Check the System Event Log to determine if the drive
has an error.
• Run the appropriate Online Diagnostics test. Restart
the system and run embedded diagnostics (ePSA).
• If the drives are congured in a RAID array, restart the
system, and enter the host adapter conguration
utility program.
Temperature
indicator
The indicator turns solid amber if the
system experiences a thermal error
(for example, the ambient
temperature is out of range or there is
a fan failure).
Ensure that none of the following conditions exist:
• A cooling fan has been removed or has failed.
• System cover, air shroud, memory module blank, or
back ller bracket is removed.
• Ambient temperature is too high.
• External airow is obstructed.
If the problem persists, see the Getting help section.
Electrical indicator The indicator turns solid amber if the
system experiences an electrical error
(for example, voltage out of range, or
a failed power supply unit (PSU) or
voltage regulator).
Check the System Event Log or system messages for the
specic issue. If it is due to a problem with the PSU,
check the LED on the PSU. Reseat the PSU.
If the problem persists, see the Getting help section.
Memory indicator The indicator turns solid amber if a
memory error occurs.
Check the System Event Log or system messages for the
location of the failed memory. Reseat the memory
module.
If the problem persists, see the Getting help section.
PCIe indicator The indicator turns solid amber if a
PCIe card experiences an error.
Restart the system. Update any required drivers for the
PCIe card. Reinstall the card.
If the problem persists, see the Getting help section.
NOTE: For more information about the
supported PCIe cards, see the Expansion card
installation guidelines section.
iDRAC Quick Sync 2 indicator codes
iDRAC Quick Sync 2 module (optional) is located on the left control panel of your system.
Figure 6. iDRAC Quick Sync 2 indicators
12 Dell EMC PowerEdge R540 overview

Table 4. iDRAC Quick Sync 2 indicators and descriptions
iDRAC Quick Sync 2 indicator
code
Condition Corrective action
O (default state) Indicates that the iDRAC Quick Sync 2
feature is turned o. Press the iDRAC Quick
Sync 2 button to turn on the iDRAC Quick
Sync 2 feature.
If the LED fails to turn on, reseat the left control panel
ex cable and check. If the problem persists, see the
Getting help section.
Solid white Indicates that iDRAC Quick Sync 2 is ready
to communicate. Press the iDRAC Quick
Sync 2 button to turn o.
If the LED fails to turn o, restart the system. If the
problem persists, see the Getting help section.
Blinks white rapidly Indicates data transfer activity. If the indicator continues to blink indenitely, see the
Getting help section.
Blinks white slowly Indicates that rmware update is in
progress.
If the indicator continues to blink indenitely, see the
Getting help section.
Blinks white ve times rapidly and
then turns o
Indicates that the iDRAC Quick Sync 2
feature is disabled.
Check if iDRAC Quick Sync 2 feature is congured to
be disabled by iDRAC. If the problem persists, see the
Getting help section. For more information, see
Integrated Dell Remote Access Controller User's
Guide at Dell.com/idracmanuals or Dell
OpenManage Server Administrator User’s Guide at
Dell.com/openmanagemanuals.
Solid amber Indicates that the system is in fail-safe
mode.
Restart the system. If the problem persists, see the
Getting help section.
Blinking amber Indicates that the iDRAC Quick Sync 2
hardware is not responding properly.
Restart the system. If the problem persists, see the
Getting help section.
Right control panel view
Figure 7. Right control panel
Dell EMC PowerEdge R540 overview 13

Table 5. Right control panel
Item Indicator, button, or connector Icon Description
1 Power button Indicates if the system is turned on or o. Press
the power button to manually turn on or o the
system.
NOTE: Press the power button to
gracefully shut down an ACPI-
compliant operating system.
2 USB port The USB ports are 4-pin, 2.0-compliant. These
ports enable you to connect USB devices to the
system.
3 iDRAC Direct (Micro-AB USB) The iDRAC Direct (Micro-AB USB) port enables
you to access the iDRAC Direct (Micro-AB)
features. For more information, see the iDRAC
User’s Guide at Dell.com/idracmanuals.
4 iDRAC Direct (Micro-AB USB) LED N/A The iDRAC Direct (Micro-AB USB) LED
indicator lights up to indicate that the iDRAC
Direct port is connected. For more information,
see the iDRAC Direct LED indicator codes
section.
5 VGA port Enables you to connect a display device to the
system. For more information, see the Technical
specications section.
iDRAC Direct LED indicator codes
The iDRAC Direct LED indicator lights up to indicate that the port is connected and is being used as a part of the iDRAC subsystem.
You can congure iDRAC Direct by using a USB to micro USB (type AB) cable, which you can connect to your laptop or tablet. The
following table describes iDRAC Direct activity when the iDRAC Direct port is active:
Table 6. iDRAC Direct LED indicator codes
iDRAC Direct LED
indicator code
Condition
Solid green for two seconds Indicates that the laptop or tablet is connected.
Flashing green (on for two
seconds and o for two
seconds)
Indicates that the laptop or tablet connected is recognized.
Turns o Indicates that the laptop or tablet is unplugged.
14 Dell EMC PowerEdge R540 overview

Back panel features
Figure 8. Back panel features of 12 x 3.5 inch + 2 x 3.5 inch (rear) drive system
Figure 9. Back panel features of 12 x 3.5 inch + 2 x 3.5 inch (rear) drive system
Figure 10. Back panel features of 12 x 3.5 inch drive system with buttery riser
1Serial port 2 Drive (rear)
3 Low prole riser right slot 4 Low prole riser left slot
5 Power supply unit (PSU) 6 LOM riser ports
7 Ethernet ports 8 USB 3.0 ports
Dell EMC PowerEdge R540 overview 15

9 iDRAC9 dedicated network port 10 VGA port
11 CMA power port 12 System identication button
13 Full height riser slot 14 Buttery riser slot
15 PCIe slot
Table 7. Back panel features of R540
Item Features Icon Description
1 Serial port Use the serial port to connect a serial device to the system. For
more information about the supported serial port, see the Technical
specications section.
2 Drive N/A Two optional rear drives supported for 12 x 3.5 inch system.
3 Low prole riser right slot N/A Use the card slot to connect half-height PCIe expansion card on
low prole riser.
4 Low prole riser left slot N/A Use the card slot to connect half-height PCIe expansion card on
low prole riser.
5 Power supply unit (PSU) N/A For information about supported PSUs, see the Technical
specications section.
6 LOM riser ports Use the Ethernet or SFP+ ports to connect Local Area Networks
(LANs) to the system. For more information about the supported
Ethernet or SFP+ ports, see the Technical specications section.
7 Ethernet ports (2) Use the Ethernet ports to connect Local Area Networks (LANs) to
the system. For more information about the supported Ethernet
ports, see the Technical specications section.
8 USB 3.0 port Use the USB 3.0 port to connect USB devices to the system. These
ports are 4-pin, USB 3.0-compliant.
9 iDRAC9 dedicated network port Use the iDRAC9 dedicated network port to securely access the
embedded iDRAC on a separate management network, see the
Integrated Dell Remote Access Controller User’s Guide at Dell.com/
idracmanuals.
10 VGA port Use the VGA port to connect a display to the system. For more
information about the supported VGA port, see the Technical
specications section.
11 CMA power port N/A The Cable Management Arm (CMA) power port enables you to
connect to the CMA.
12 System identication button Press the system ID button:
• To locate a particular system within a rack.
• To turn the system ID on or o.
To reset iDRAC, press and hold the button for more than 15
seconds.
16 Dell EMC PowerEdge R540 overview

Item Features Icon Description
NOTE:
• To reset iDRAC using system ID, ensure that the system
ID button is enabled in the iDRAC setup.
• If the system stops responding during POST, press and
hold the system ID button (for more than ve seconds)
to enter the BIOS progress mode.
13 Full height riser slot Use the card slots to connect full-height PCIe expansion cards on
full height riser.
14 Buttery riser slot Use the card slots to connect full-height PCIe expansion cards on
buttery riser.
15 PCIe slot Use the card slots to connect up to three half-height PCIe
expansion cards on the system board.
Drive indicator codes
Each drive carrier has an activity LED indicator and a status LED indicator. The indicators provide information about the current status of
the drive. The activity LED indicator indicates whether the drive is currently in use or not. The status LED indicator indicates the power
condition of the drive.
Figure 11. Drive indicators
1Drive activity LED indicator 2 Drive status LED indicator
3 Drive
NOTE: If the drive is in the Advanced Host Controller Interface (AHCI) mode, the status LED indicator does not turn on.
Table 8. Drive indicator codes
Drive status indicator code Condition
Flashes green twice per second Identifying drive or preparing for removal.
O Drive ready for removal.
Dell EMC PowerEdge R540 overview 17

Drive status indicator code Condition
NOTE: The drive status indicator remains o until all drives are
initialized after the system is turned on. Drives are not ready
for removal during this time.
Flashes green, amber, and then turns o Predicted drive failure.
Flashes amber four times per second Drive failed.
Flashes green slowly Drive rebuilding.
Solid green Drive online.
Flashes green for three seconds, amber for three seconds, and
then turns o after six seconds
Rebuild stopped.
NIC indicator codes
Each NIC on the back of the system has indicators that provide information about the activity and link status. The activity LED indicator
indicates if data is owing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 12. NIC indicator codes
1link LED indicator 2 activity LED indicator
Table 9. NIC indicator codes
Status Condition
Link and activity indicators are o The NIC is not connected to the network.
Link indicator is green and activity indicator is blinking green The NIC is connected to a valid network at its maximum port speed and
data is being sent or received.
Link indicator is amber and activity indicator is blinking
green
The NIC is connected to a valid network at less than its maximum port
speed and data is being sent or received.
Link indicator is green and activity indicator is o The NIC is connected to a valid network at its maximum port speed and
data is not being sent or received.
Link indicator is amber and activity indicator is o The NIC is connected to a valid network at less than its maximum port
speed and data is not being sent or received.
Link indicator is blinking green and activity is o NIC identify is enabled through the NIC conguration utility.
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator.
The DC PSUs have an LED that serves as an indicator.
The indicator shows whether power is present or if a power fault has occurred.
18 Dell EMC PowerEdge R540 overview

Figure 13. AC PSU status indicator
1 AC PSU status indicator/handle
Table 10. AC PSU status indicator codes
Power indicator codes Condition
Green A valid power source is connected to the PSU and the PSU is operational.
Blinking amber Indicates a problem with the PSU.
Not illuminated Power is not connected to the PSU.
Blinking green When the rmware of the PSU is being updated, the PSU handle blinks green.
CAUTION: Do not disconnect the power cord or unplug the PSU when updating rmware. If
rmware update is interrupted, the PSUs do not function.
Blinking green and turns o When hot-plugging a PSU, the PSU handle blinks green ve times at a rate of 4 Hz and turns o. This
indicates a PSU mismatch with respect to eciency, feature set, health status, or supported voltage.
CAUTION: If two PSUs are installed, both the PSUs must have the same type of label; for
example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of
PowerEdge servers is not supported, even if the PSUs have the same power rating. This results
in a PSU mismatch condition or failure to turn the system on.
CAUTION: When correcting a PSU mismatch, replace only the PSU with the blinking indicator.
Swapping the PSU to make a matched pair can result in an error condition and unexpected
system shutdown. To change from a high output conguration to a low output conguration or
vice versa, you must turn o the system.
CAUTION: AC PSUs support both 240 V and 120 V input voltages with the exception of Titanium
PSUs, which support only 240 V. When two identical PSUs receive dierent input voltages, they
can output dierent wattages, and trigger a mismatch.
CAUTION: If two PSUs are used, they must be of the same type and have the same maximum
output power.
CAUTION: Combining AC and DC PSUs is not supported and triggers a mismatch.
Dell EMC PowerEdge R540 overview 19

Figure 14. DC PSU status indicator
1 DC PSU status indicator
Table 11. DC PSU status indicator codes
Power indicator codes Condition
Green A valid power source is connected to the PSU and the PSU is operational.
Blinking amber Indicates a problem with the PSU.
Not illuminated Power is not connected to the PSU.
Blinking green When hot-plugging a PSU, the PSU indicator blinks green. This indicates that there is a PSU mismatch
with respect to eciency, feature set, health status, or supported voltage.
CAUTION: If two PSUs are installed, both the PSUs must have the same type of label; for
example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations
of PowerEdge servers is not supported, even if the PSUs have the same power rating. This
results in a PSU mismatch condition or failure to turn the system on.
CAUTION: When correcting a PSU mismatch, replace only the PSU with the blinking
indicator. Swapping the PSU to make a matched pair can result in an error condition and
unexpected system shutdown. To change from a High Output conguration to a Low Output
conguration or vice versa, you must turn o the system.
CAUTION: If two PSUs are used, they must be of the same type and have the same
maximum output power.
CAUTION: Combining AC and DC PSUs is not supported and triggers a mismatch.
LCD panel
The LCD panel provides system information, status, and error messages to indicate if the system is functioning correctly or requires
attention. The LCD panel can be used to congure or view the system’s iDRAC IP address. For more information about error messages, see
the Dell Event and Error Messages Reference Guide at Dell.com/openmanagemanuals > OpenManage software.
The LCD panel is available only on the optional LCD bezel. The optional LCD bezel is hot pluggable.
20 Dell EMC PowerEdge R540 overview