This document is for the person who installs, administers, and troubleshoots HPE server systems.
Hewlett Packard Enterprise assumes that you are qualified in the servicing of computer
equipment, and trained in recognizing hazards in products with hazardous energy levels.
Part Number: 878778-003
Published: March 2018
Edition: 3
Copyright 2017, 2018 Hewlett Packard Enterprise Development LP
Notices
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Acknowledgments
Microsoft® and Windows® are either registered trademarks or trademarks of Microsoft Corporation in the
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Flashing green (1 Hz/cycle per sec) = Performing
power on sequence
Solid amber = System in standby
Off = No power present
2
Solid green = Normal
Flashing green (1 Hz/cycle per sec) = iLO is rebooting.
Flashing amber = System degraded
Flashing red (1 Hz/cycle per sec) = System critical
3
Table Continued
Component identification13
ItemDescriptionStatus
3NIC status LED
1
Solid green = Link to network
Flashing green (1 Hz/cycle per sec) = Network active
Off = No network activity
4UID button/LED
1
Solid blue = Activated
Flashing blue:
•1 Hz/cycle per sec = Remote management or
firmware upgrade in progress
•4 Hz/cycle per sec = iLO manual reboot sequence
initiated
•8 Hz/cycle per sec = iLO manual reboot sequence
in progress
•1 fast flash and then off for 3 seconds = iLO Service
Port status is Complete
•4 medium flashes and then off for 1 second = iLO
Service Port status is Busy
•8 fast flashes and then off for 1 second = iLO
Service Port status is Error
Off = Deactivated
1
When all four LEDs described in this table flash simultaneously, a power fault has occurred.
2
Facility power is not present, power cord is not attached, no power supplies are installed, power supply
failure has occurred, or the power button cable is disconnected.
3
If the health LED indicates a degraded or critical state, review the system IML or use iLO to review the
system health status.
UID button functionality
The UID button can be used to display the Server Health Summary when the server will not power on. For
more information, see the latest HPE iLO User Guide on the Hewlett Packard Enterprise website.
Front panel LED power fault codes
The following table provides a list of power fault codes, and the subsystems that are affected. Not all power
faults are used by all servers.
SubsystemLED behavior
System board1 flash
Processor2 flashes
Memory3 flashes
Riser board PCIe slots4 flashes
FlexibleLOM5 flashes
14 UID button functionality
Table Continued
SubsystemLED behavior
Removable HPE Smart Array SR Gen10 controller6 flashes
System board PCIe slots7 flashes
Power backplane or storage backplane8 flashes
Power supply9 flashes
Systems Insight Display LEDs
The Systems Insight Display LEDs represent the system board layout. The display enables diagnosis with the
access panel installed.
DescriptionStatus
Processor LEDs
DIMM LEDs
Fan LEDs
NIC LEDs
Off = Normal
Amber = Failed processor
Off = Normal
Amber = Failed DIMM or configuration issue
Off = Normal
Amber = Failed fan or missing fan
Off = No link to network
Solid green = Network link
Flashing green = Network link with activity
If power is off, the front panel LED is not active. For
status, see Rear panel LEDs on page 22.
Table Continued
Systems Insight Display LEDs15
DescriptionStatus
Power supply LEDs
PCI riser LED
Over temp LED
Proc DIMM Group LED
Power cap LED
When the health LED on the front panel illuminates either amber or red, the server is experiencing a health
event. For more information on the combination of these LEDs, see Systems Insight Display combinedLED descriptions on page 16.
Off = Normal
Solid amber = Power subsystem degraded, power
supply failure, or input power lost.
Off = Normal
Amber = Incorrectly installed PCI riser cage
Off = Normal
Amber = High system temperature detected
Off = Normal
Amber = Failed DIMM or configuration issue
Off = System is in standby, or no cap is set.
Solid green = Power cap applied
Systems Insight Display combined LED descriptions
The combined illumination of the following LEDs indicates a system condition:
•Systems Insight Display LEDs
•System power LED
•Health LED
Systems Insight Display
LED and color
Processor (amber)RedAmber
Processor (amber)AmberGreenProcessor in socket X is in a pre-
Health
LED
System
power LED
Status
One or more of the following
conditions may exist:
•Processor in socket X has failed.
•Processor X is not installed in the
socket.
•Processor X is unsupported.
•ROM detects a failed processor
during POST.
failure condition.
DIMM (amber)RedGreenOne or more DIMMs have failed.
16 Systems Insight Display combined LED descriptions
Table Continued
Systems Insight Display
LED and color
DIMM (amber)AmberGreenDIMM in slot X is in a pre-failure
Over temp (amber)AmberGreenThe Health Driver has detected a
Over temp (amber)RedAmberThe server has detected a hardware
PCI riser (amber)RedGreenThe PCI riser cage is not seated
Fan (amber)AmberGreenOne fan has failed or has been
Fan (amber)RedGreenTwo or more fans have failed or been
Health
LED
System
power LED
Status
condition.
cautionary temperature level.
critical temperature level.
properly.
removed.
removed.
Power supply (amber)RedAmber
Power supply (amber)AmberGreen
One or more of the following
conditions may exist:
•Only one power supply is installed
and that power supply is in
standby.
•Power supply fault
•System board fault
One or more of the following
conditions may exist:
•Redundant power supply is
installed and only one power
supply is functional.
•AC power cord is not plugged into
redundant power supply.
•Redundant power supply fault
•Power supply mismatch at POST
or power supply mismatch through
hot-plug addition
Power cap (off)—AmberStandby
Power cap (green)—Flashing
green
Power cap (green)—GreenPower is available.
Power cap (flashing amber)—AmberPower is not available.
Waiting for power
Component identification17
IMPORTANT:
If more than one DIMM slot LED is illuminated, further troubleshooting is required. Test each bank of
DIMMs by removing all other DIMMs. Isolate the failed DIMM by replacing each DIMM in a bank with a
known working DIMM.
Drives
NVMe drive components and LEDs
ItemDescription
1Release lever
2Activity ring
3Do Not Remove LED
4Power On/Off button
1
Do not remove an NVMe SSD from the drive bay while the Do Not Remove button LED is flashing. The Do
Not Remove button LED flashes to indicate that the device is still in use. Removal of the NVMe SSD before
the device has completed and ceased signal/traffic flow can cause loss of data.
1
SAS/SATA drive components and LEDs
18 Drives
ItemDescriptionStatus
1Locate
•Solid blue = The drive is being identified by a host
application.
•Flashing blue = The drive carrier firmware is being
updated or requires an update.
2Activity ring LED
•Rotating green = Drive activity.
•Off = No drive activity.
3Do not remove LED
•Solid white = Do not remove the drive. Removing
the drive causes one or more of the logical drives to
fail.
•Off = Removing the drive does not cause a logical
drive to fail.
4Drive status LED
•Solid green = The drive is a member of one or more
logical drives.
Drive guidelines
CAUTION:
Do not remove an NVMe SSD from the drive bay while the Do Not Remove button LED is flashing. The
Do Not Remove button LED flashes to indicate the device is still in use. Removal of the NVMe SSD
before the device has completed and ceased signal/traffic flow can cause loss of data.
Depending on the configuration, this server supports SAS, SATA, and NVMe drives.
•Flashing green = The drive is rebuilding or
performing a RAID migration, strip size migration,
capacity expansion, or logical drive extension, or is
erasing.
•Flashing amber/green = The drive is a member of
one or more logical drives and predicts the drive will
fail.
•Flashing amber = The drive is not configured and
predicts the drive will fail.
•Solid amber = The drive has failed.
•Off = The drive is not configured by a RAID
controller.
Observe the following general guidelines:
•For drive numbering, see Drive bay numbering on page 10.
•The NVMe SSD is a PCIe bus device. Do not remove a device attached to a PCIe bus without allowing it
to first complete and cease the signal/traffic flow.
Drive guidelines19
•The system automatically sets all device numbers.
•If only one hard drive is used, install it in the bay with the lowest device number.
•Drives must be the same capacity to provide the greatest storage space efficiency when drives are
grouped into the same drive array.
Rear panel components
Rear panel (standard)
ItemDescription
1Primary PCIe riser slots 1-7
2Power supplies (4)
3Serial port
4iLO Management Port
5Video port
6Rear USB 2.0 ports (2)
7Rear USB 3.0 ports (2)
8UID LED
9FlexibleLOM (optional)
20 Rear panel components
Rear panel with optional butterfly riser cage
ItemDescription
1Primary PCIe riser slots 1-7
2Butterfly PCIe riser slots 8-16 (Optional)
3Power supplies (4)
4Serial port
5iLO Management Port
6Video port
7Rear USB 2.0 ports (2)
8Rear USB 3.0 ports (2)
9UID LED
10FlexibleLOM (optional)
Component identification21
Rear panel LEDs
ItemDescriptionStatus
1Activity LED
2Link LED
3UID LED
Off = No network activity
Solid green = Link to network
Flashing green = Network activity
Off = No network link
Green = Network link
Solid blue = Activated
Flashing blue:
•1 Hz/cycle per sec = Remote management or firmware upgrade in
progress
•4 Hz/cycle per sec = iLO manual reboot sequence initiated
•8 Hz/cycle per sec = iLO manual reboot sequence in progress
•1 fast flash and then off for 3 seconds = iLO Service Port status is
Complete
•4 medium flashes and then off for 1 second = iLO Service Port
status is Busy
•8 fast flashes and then off for 1 second = iLO Service Port status is
Error
Power supply LEDs
The power supply LED is located on each power supply.
22 Rear panel LEDs
Off = Deactivated
LED StatusDescription
OffSystem is off or power supply has failed.
Solid GreenNormal
Fan bay numbering
The server requires 12 fans, with two fans per bay.
DIMM slots are numbered sequentially (1 through 12) for each processor on the system and mezzanine
boards.
1
Processor, heatsink, and socket components25
For specific DIMM population information, see the DIMM population guidelines on the Hewlett Packard
Enterprise website (http://www.hpe.com/docs/memory-population-rules).