Installation and Service 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
- 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
Figure 162. Installing the intrusion switch module
Next steps
1. Install the air shroud.
2. Follow the procedure listed in After working inside your system.
Power supply unit
NOTE:
While replacing the hot swappable PSU, after next server boot; the new PSU automatically updates to the same
firmware and configuration of the replaced one. For updating to the latest firmware and changing the configuration, see the
Lifecycle Controller User's Guide at https://www.dell.com/idracmanuals.
Hot spare feature
Your system supports the hot spare feature that significantly reduces the power overhead associated with the power supply
unit (PSU) redundancy.
When the hot spare feature is enabled, one of the redundant PSUs is switched to the sleep state. The active PSU supports 100
percent of the system load, thus operating at higher efficiency. The PSU in the sleep state monitors output voltage of the active
PSU. If the output voltage of the active PSU drops, the PSU in the sleep state returns to an active output state.
If having both PSUs active is more efficient than having one PSU in the sleep state, the active PSU can also activate the
sleeping PSU.
The default PSU settings are as follows:
● If the load on the active PSU is more than 50 percent of PSU rated power wattage, then the redundant PSU is switched to
the active state.
● If the load on the active PSU falls below 20 percent of PSU rated power wattage, then the redundant PSU is switched to
the sleep state.
You can configure the hot spare feature by using the iDRAC settings. For more information, see the iDRAC User’s Guide
available at www.dell.com/poweredgemanuals.
156
Installing and removing system components