User Manual
Table Of Contents
- Dell EMC PowerEdge T550 Installation and Service Manual
- Contents
- About this document
- PowerEdge T550 system overview
- Initial system setup and configuration
- Minimum to POST and system management configuration validation
- Installing and removing system components
- Safety instructions
- Before working inside your system
- After working inside your system
- Recommended tools
- Optional front bezel
- System feet
- Optional caster wheels
- System cover
- Air shroud
- Cooling fans
- Cooling fan cage
- Fan board tray
- Front PERC module
- Drives
- Removing a drive blank
- Installing a drive blank
- Removing a drive carrier
- Installing a drive carrier
- Removing the drive from the drive carrier
- Installing a drive into the drive carrier
- Removing a 3.5-inch drive adapter from a 3.5-inch drive carrier
- Installing a 3.5-inch drive adapter into the 3.5-inch drive carrier
- Removing a 2.5-inch drive from a 3.5-inch drive adapter
- Installing a 2.5-inch drive into a 3.5-inch drive adapter
- Drive backplane
- Drive bays
- Cable routing
- Optional optical drive
- Optional tape backup unit
- Front IO module
- System memory
- Optional BOSS S2 module
- M.2 BOSS card
- Optional internal USB card
- Internal USB memory key
- Optional IDSDM module
- MicroSD card
- Expansion cards
- GPU card holder
- Optional GPU card
- GPU riser
- Processor and heat sink module
- Optional OCP card
- Optional serial COM port
- System battery
- Intrusion switch module
- Power supply unit
- Power interposer board
- System board
- Trusted Platform Module
- Jumpers and connectors
- System diagnostics and indicator codes
- Getting help
- Documentation resources
Table 51. AC PSU status indicator codes
Power indicator codes Condition
Green Indicates that a valid power source is connected to the PSU
and the PSU is operational.
Blinking amber Indicates an issue with the PSU.
Not powered on Indicates that the power is not connected to the PSU.
Blinking green Indicates that the firmware of the PSU is being updated.
CAUTION: Do not disconnect the power cord or
unplug the PSU when updating firmware. If firmware
update is interrupted, the PSUs will not function.
Blinking green and powers off When hot-plugging a PSU, it blinks green five times at a rate
of 4 Hz and powers off. This indicates a PSU mismatch due to
efficiency, 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 power on the system.
CAUTION: If two PSUs are used, they must be of
the same type and have the same maximum output
power.
CAUTION: When correcting a PSU mismatch, replace
the PSU with the blinking indicator. Swapping the
PSU to make a matched pair can result in an error
condition and an unexpected system shutdown. To
change from a high output configuration to a low
output configuration or vice versa, you must power
off 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 different input voltages, they can output
different wattages, and trigger a mismatch.
Table 52. DC PSU status indicator codes
Power indicator codes Condition
Green Indicates that a valid power source is connected to the PSU,
and the PSU is operational.
Blinking amber Indicates an issue with the PSU.
Not powered on Indicates that the power is not connected to the PSU.
Blinking green When hot-plugging a PSU, it blinks green five times at a rate
of 4 Hz and powers off. This indicates a PSU mismatch due to
efficiency, 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
System diagnostics and indicator codes 177