Dell EMC PowerEdge R7415 Manual

Dell EMC PowerEdge R7415
Installation and Service Manual
Regulatory Model: E46S Series
Regulatory Type: E46S002

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.
©2017 - 2018 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.
2018 - 02
Rev. A01

Contents
1 Dell EMC PowerEdge R7415 overview............................................................................................................ 8
Supported congurations for the PowerEdge R7415 system.......................................................................................8
Front view of the system.................................................................................................................................................. 9
Left control panel view............................................................................................................................................... 11
Right control panel view............................................................................................................................................ 14
Back panel features..........................................................................................................................................................15
NIC indicator codes.................................................................................................................................................... 17
Power supply unit indicator codes............................................................................................................................18
Drive indicator codes.................................................................................................................................................20
LCD panel.................................................................................................................................................................... 21
Locating the Service Tag of your system...................................................................................................................... 21
2 Documentation resources............................................................................................................................ 23
3 Technical specications............................................................................................................................... 25
System dimensions.......................................................................................................................................................... 26
Chassis weight................................................................................................................................................................. 26
Processor specications..................................................................................................................................................27
PSU specications........................................................................................................................................................... 27
System battery specications.........................................................................................................................................27
Expansion bus specications.......................................................................................................................................... 27
Memory specications.....................................................................................................................................................27
Drive specications..........................................................................................................................................................28
Drives...........................................................................................................................................................................28
Ports and connectors specications............................................................................................................................. 28
USB ports....................................................................................................................................................................28
NIC ports.....................................................................................................................................................................29
Serial connector......................................................................................................................................................... 29
VGA ports................................................................................................................................................................... 29
Internal Dual SD Module............................................................................................................................................29
Video specications.........................................................................................................................................................29
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
iDRAC conguration........................................................................................................................................................ 35
Options to set up iDRAC IP address........................................................................................................................35
Log in to iDRAC..........................................................................................................................................................36
Contents 3

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.............................................................................................................................................. 38
System Setup details.................................................................................................................................................39
System BIOS.............................................................................................................................................................. 39
iDRAC Settings utility................................................................................................................................................ 56
Device Settings.......................................................................................................................................................... 57
Dell Lifecycle Controller...................................................................................................................................................57
Embedded system management..............................................................................................................................57
Boot Manager...................................................................................................................................................................57
Viewing Boot Manager..............................................................................................................................................57
Boot Manager main menu.........................................................................................................................................57
One-shot BIOS boot menu.......................................................................................................................................58
System Utilities...........................................................................................................................................................58
PXE boot...........................................................................................................................................................................58
6 Installing and removing system components................................................................................................ 59
Safety instructions...........................................................................................................................................................59
Before working inside your system................................................................................................................................59
After working inside your system...................................................................................................................................59
Recommended tools........................................................................................................................................................60
Optional front bezel......................................................................................................................................................... 60
Removing the front bezel......................................................................................................................................... 60
Installing the front bezel.............................................................................................................................................61
System cover....................................................................................................................................................................62
Removing the system cover.....................................................................................................................................62
Installing the system cover....................................................................................................................................... 63
Backplane cover...............................................................................................................................................................64
Removing the backplane cover................................................................................................................................64
Installing the backplane cover.................................................................................................................................. 65
Inside the system............................................................................................................................................................. 66
Air shroud.......................................................................................................................................................................... 67
Removing the air shroud........................................................................................................................................... 67
Installing the air shroud............................................................................................................................................. 69
Cooling fans.......................................................................................................................................................................71
Removing a cooling fan..............................................................................................................................................71
Installing a cooling fan................................................................................................................................................73
Intrusion switch................................................................................................................................................................ 75
Removing the intrusion switch.................................................................................................................................75
Installing the intrusion switch................................................................................................................................... 76
Drives.................................................................................................................................................................................77
4 Contents

Removing a drive blank..............................................................................................................................................77
Installing a drive blank................................................................................................................................................78
Removing a drive carrier........................................................................................................................................... 79
Installing a drive carrier............................................................................................................................................. 80
Removing the drive from the drive carrier.............................................................................................................. 81
Installing a drive into the drive carrier...................................................................................................................... 81
System memory............................................................................................................................................................... 82
General memory module installation guidelines......................................................................................................84
Mode-specic guidelines.......................................................................................................................................... 85
Removing a memory module....................................................................................................................................85
Installing a memory module...................................................................................................................................... 86
Processors and heat sinks...............................................................................................................................................87
Removing a heat sink.................................................................................................................................................87
Removing the AMD processor................................................................................................................................. 88
Installing the AMD processor.................................................................................................................................... 91
Installing the heat sink...............................................................................................................................................94
Rear drive cage................................................................................................................................................................ 96
Removing the rear drive cage.................................................................................................................................. 96
Installing the rear drive cage.....................................................................................................................................97
Drive backplane................................................................................................................................................................ 97
Removing the drive backplane ................................................................................................................................99
Installing the drive backplane..................................................................................................................................100
Removing the rear drive backplane........................................................................................................................ 101
Installing the rear drive backplane.......................................................................................................................... 102
Expansion cards and expansion card risers.................................................................................................................103
Expansion card installation guidelines.................................................................................................................... 103
Removing expansion card from the expansion card riser....................................................................................106
Installing expansion card into the expansion card riser........................................................................................107
Removing an expansion card.................................................................................................................................. 109
Installing an expansion card..................................................................................................................................... 110
Removing expansion card risers..............................................................................................................................112
Installing the expansion card risers..........................................................................................................................114
Optional IDSDM or vFlash module................................................................................................................................116
Removing the MicroSD card....................................................................................................................................116
Installing the MicroSD card...................................................................................................................................... 117
Removing the IDSDM or vFlash module.................................................................................................................117
Installing the IDSDM or vFlash module...................................................................................................................118
LOM riser card.................................................................................................................................................................119
Removing the LOM riser card................................................................................................................................. 119
Installing the LOM riser card................................................................................................................................... 122
Mini PERC card...............................................................................................................................................................124
Removing the mini PERC card................................................................................................................................124
Installing the mini PERC card..................................................................................................................................125
Cable routing................................................................................................................................................................... 127
System battery................................................................................................................................................................132
Contents 5

Replacing the system battery................................................................................................................................. 132
Optional internal USB memory key...............................................................................................................................133
Replacing optional internal USB memory key....................................................................................................... 134
Optional optical drive..................................................................................................................................................... 134
Removing the optical drive......................................................................................................................................134
Installing the optical drive........................................................................................................................................ 136
Power supply units..........................................................................................................................................................137
Hot spare feature......................................................................................................................................................138
Removing a power supply unit blank......................................................................................................................138
Installing a power supply unit blank........................................................................................................................ 138
Removing a power supply unit................................................................................................................................139
Installing a power supply unit.................................................................................................................................. 140
Removing a non-redundant cabled AC power supply unit...................................................................................141
Installing a non-redundant cabled AC power supply unit.....................................................................................142
Wiring instructions for a DC power supply unit.................................................................................................... 143
Power interposer board................................................................................................................................................. 145
Removing the power interposer board.................................................................................................................. 145
Installing the power interposer board.....................................................................................................................146
Control panel................................................................................................................................................................... 147
Removing the left control panel..............................................................................................................................147
Installing the left control panel................................................................................................................................148
Removing the right control panel........................................................................................................................... 149
Installing the right control panel............................................................................................................................. 150
System board...................................................................................................................................................................151
Removing the system board.................................................................................................................................... 151
Installing the system board......................................................................................................................................153
Restoring the Service Tag using Easy Restore...........................................................................................................155
Manually update the Service Tag........................................................................................................................... 155
Trusted Platform Module...............................................................................................................................................155
Upgrading the Trusted Platform Module...............................................................................................................155
Initializing TPM for BitLocker users........................................................................................................................157
7 Using system diagnostics........................................................................................................................... 158
Dell Embedded System Diagnostics.............................................................................................................................158
Running the Embedded System Diagnostics from Boot Manager.....................................................................158
Running the Embedded System Diagnostics from the Dell Lifecycle Controller..............................................158
System diagnostic controls..................................................................................................................................... 159
8 Jumpers and connectors ........................................................................................................................... 160
System board jumpers and connectors........................................................................................................................161
System board jumper settings...................................................................................................................................... 162
Disabling forgotten password........................................................................................................................................163
9 Getting help............................................................................................................................................... 164
Contacting Dell............................................................................................................................................................... 164
Documentation feedback.............................................................................................................................................. 164
6 Contents

Accessing system information by using QRL..............................................................................................................164
Quick Resource Locator for PowerEdge R7415................................................................................................... 165
Receiving automated support with SupportAssist ....................................................................................................165
Contents 7

Dell EMC PowerEdge R7415 overview
The PowerEdge R7415 is a 2U, single socket rack system and support these congurations:
• One AMD EPYC™processor
• Sixteen DIMM slots
• Two redundant power supply units (PSU) or single cabled PSU
• 8 x 3.5 inch, 12 x 3.5 inch, 12 x 3.5 inch + 2 x 3.5 inch (rear), or 24 x 2.5 inch SAS, SATA, or NVMe drives (up to 12 SAS/SATA/NVMe
+ 12 NVMe drives)
NOTE: Hot swap for the NVMe drives is supported for your system. For more information on correct usage and technical
specications, see the Dell PowerEdge Express Flash NVMe PCIe SSD 2.5 inch Small Form Factor User's Guide at Dell.com/
support/manuals > All Products > Server, Storage, & Networking > Dell Adapters page.
NOTE: All instances of SAS, SATA hard drives, SSDs and NVMe drives are referred to as drives in this document, unless specied
otherwise.
Topics:
• Supported congurations for the PowerEdge R7415 system
• Front view of the system
• Back panel features
• Locating the Service Tag of your system
Supported congurations for the PowerEdge R7415
system
The Dell EMC PowerEdge R7415 system supports the following congurations:
1
8 Dell EMC PowerEdge R7415 overview

Figure 1. Supported congurations for a PowerEdge R7415 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 system
Dell EMC PowerEdge R7415 overview 9

Figure 3. Front view of 24 x 2.5 inch system
Figure 4. Front view of 8 x 3.5 inch 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 [3.5 inch or 2.5
inch drives]
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 port, iDRAC Direct port, 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
10 Dell EMC PowerEdge R7415 overview

Item Ports, panels, and slots Icon Description
have opted for the 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.
Left control panel view
Figure 5. Left control panel without optional iDRAC Quick Sync 2.0 indicator
Figure 6. 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
Indicate 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
Dell EMC PowerEdge R7415 overview 11

Item Indicator, button, or
connector
Icon Description
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.
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owis 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.
12 Dell EMC PowerEdge R7415 overview

System health and system ID indicator codes
The system health and system ID indicator is located on the left control panel of your system.
Figure 7. System health and system ID indicators
Table 4. System health and system ID indicator codes
System health and system ID indicator code Condition
Solid blue Indicates that the system is turned on, system is healthy, and system
ID mode is not active. Press the system health and system ID button
to switch to system ID mode.
Blinking blue Indicates that the system ID mode is active. Press the system health
and system ID button to switch to system health mode.
Solid amber Indicates that the system is in fail-safe mode. If the problem persists,
see the Getting help section.
Blinking amber Indicates that the system is experiencing a fault. Check the System
Event Log or the LCD panel, if available on the bezel, for specic error
message. For more information about error messages, see the Dell
Event and Error Messages Reference Guide at Dell.com/
openmanagemanuals > OpenManage software.
iDRAC Quick Sync 2 indicator codes
iDRAC Quick Sync 2 module (optional) is located on the left control panel of your system.
Figure 8. iDRAC Quick Sync 2 indicators
Table 5. 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.
Dell EMC PowerEdge R7415 overview 13

iDRAC Quick Sync 2 indicator
code
Condition Corrective action
Blinks white rapidly Indicates data transfer activity. If the problem persists, see the Getting help section.
Blinks white slowly Indicates that rmware update is in
progress.
If the problem persists, see the Getting help section.
Blinks white vetimes 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 9. Right control panel view
Table 6. 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 (2) The USB ports are 4-pin, 2.0-compliant. These
ports enable you to connect USB devices to the
system.
14 Dell EMC PowerEdge R7415 overview

Item Indicator, button, or connector Icon Description
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 LED N/A The iDRAC Direct 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 7. 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.
Back panel features
Figure 10. Back panel features of 12 x 3.5 inch + 2 x 3.5 inch (rear) drive system
Dell EMC PowerEdge R7415 overview 15

Figure 11. Back panel features of riser 1B system
Table 8. Back panel features of PowerEdge R7415
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 Serial
connectors section in the Technical specications chapter.
2 Drive N/A Two optional rear drives supported for 12 x 3.5 inch system.
3 Riser 1A slot N/A Use the card slot to connect half-height PCIe expansion card on
low prole riser (slot 2).
4 Riser 3A slot N/A Use the card slot to connect half-height PCIe expansion card on
low prole riser (slot 3).
5 Power supply unit (PSU) N/A For information about supported PSUs, see the PSU specication
section in the Technical specications chapter.
6 LOM riser ports (2) 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 NIC ports section in the Technical
specications chapter (slot 1).
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 NIC ports section in the Technical specications
chapter.
8 USB 3.0 port (2) 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 VGA port
section in the Technical specications chapter.
11 CMA power port N/A The Cable Management Arm (CMA) power port enables you to
connect to the CMA.
16 Dell EMC PowerEdge R7415 overview

Item Features Icon Description
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.
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 Riser 1B slot Use the card slots to connect full-height PCIe expansion cards on
full height riser (Upper is slot 2 and lower is slot 3).
14 PCIe slot Use the card slots to connect up to two half-height PCIe expansion
cards on the system board.
15 PSU blank Use the PSU blank to cover the PSU 2 slot.
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
1 link 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.
Dell EMC PowerEdge R7415 overview 17

Status Condition
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.
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.
18 Dell EMC PowerEdge R7415 overview

Power indicator codes Condition
CAUTION: Combining AC and DC PSUs is not supported and triggers a mismatch.
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.
Dell EMC PowerEdge R7415 overview 19

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 15. Drive indicators
1 Drive 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 12. Drive indicator codes
Drive status indicator code Condition
Flashes green twice per second Identifying drive or preparing for removal.
O Drive ready for removal.
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.
20 Dell EMC PowerEdge R7415 overview