User Manual
Table Of Contents
- Dell EMC PowerEdge R750 Installation and Service Manual
- Contents
- About this document
- 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
- Cable routing
- M.2 SSD module
- Optional front bezel
- System cover
- Drive backplane cover
- Air shroud
- Removing the air shroud
- Installing the air shroud
- Removing the GPU air shroud
- Installing the GPU air shroud
- Removing the GPU air shroud top cover
- Installing the GPU air shroud top cover
- Removing the GPU air shroud filler
- Installing the GPU air shroud filler
- Removing the rear drive module air shroud
- Installing the rear drive module air shroud
- Cooling fans
- Side wall brackets
- Drives
- Rear drive module
- Drive backplane
- PERC module
- System memory
- Processor and heat sink module
- Expansion cards and expansion card risers
- Expansion card installation guidelines
- Removing the expansion card risers
- Installing the expansion card risers
- Removing expansion card from the expansion card riser
- Installing an expansion card into the expansion card riser
- Removing the full length expansion card risers
- Installing the full length expansion card risers
- Removing a GPU
- Installing a GPU
- Removing R1 and R3 paddle cards
- Installing R1 and R3 paddle cards
- Optional serial COM port
- Optional VGA port for liquid cooling module
- Optional IDSDM module
- MicroSD card
- Optional BOSS S2 module
- System battery
- Optional internal USB card
- Intrusion switch module
- Optional OCP card
- Power supply unit
- Trusted Platform Module
- System board
- LOM card and rear I/O board
- Control panel
- Upgrade Kits
- 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 233. NIC indicator codes
1. Link LED indicator
2. Activity LED indicator
Table 92. 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 234. AC PSU status indicator
1. AC PSU handle
2. Socket
3. Release latch
System diagnostics and indicator codes
239