Dell PowerEdge HS5620 PowerEdge HS5620 Installation and Service Manual - Page 153

Installing the internal USB key, Power supply unit, Hot spare feature

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Installing the internal USB key Prerequisites 1. Follow the safety guidelines listed in the Safety instructions. 2. Follow the procedure listed in the Before working inside your system. Steps 1. Connect the USB key to the internal USB card. 2. Align the internal USB card with the connector on the system board and press firmly until the internal USB card is seated. Figure 120. Installing the internal USB key Next steps 1. Follow the procedure listed in After working inside the system. 2. While booting, press F2 to enter System Setup and verify that the system detects the USB memory key. 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. Installing and removing system components 153

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Installing the internal USB key
Prerequisites
1.
Follow the safety guidelines listed in the
Safety instructions
.
2.
Follow the procedure listed in the
Before working inside your system
.
Steps
1.
Connect the USB key to the internal USB card.
2.
Align the internal USB card with the connector on the system board and press firmly until the internal USB card is seated.
Figure 120. Installing the internal USB key
Next steps
1.
Follow the procedure listed in
After working inside the system
.
2.
While booting, press F2 to enter
System Setup
and verify that the system detects the USB memory key.
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
.
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.
Installing and removing system components
153