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
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 flowing through the NIC, and the link LED indicator indicates the speed of the connected network.
Figure 182. NIC indicator codes
1. Link LED indicator
2. Activity LED indicator
Table 50. NIC indicator codes
NIC indicator codes Condition
Link and activity indicators are off. Indicates that the NIC is not connected to the network.
Link indicator is green, and activity indicator is blinking
green.
Indicates that 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.
Indicates that 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 off. Indicates that 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 off. Indicates that 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 off. Indicates that the NIC identity is enabled through the NIC
configuration utility.
Power supply unit indicator codes
AC and DC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows if
power is present or if a power fault has occurred.
Figure 183. AC PSU status indicator
1. AC PSU handle
2. Socket
3. Release latch
176
System diagnostics and indicator codes