Steps
1
Locate the USB port or USB memory key on the system board.
To locate the USB port, see the Internal USB memory key (optional) section.
2
If installed, remove the USB memory key from the USB port.
3
Insert the replacement USB memory key into the USB port.
Next steps
1
Follow the procedure listed in
After working inside your system
.
2
While booting, press F2 to enter
System Setup
and verify that the system detects the USB memory key.
Power supply units
The power supply unit (PSU) is an internal hardware component which supplies power to the components in the system.
Your system supports two 550 W AC PSUs.
NOTE:
For more information, see the
section.
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. Mixing PSUs will result in mismatch condition or failure to turn the system on.
NOTE:
When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without redundancy) is
configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is
disabled. When Hot Spare is enabled, one of the PSUs is put into the sleep mode when system utilization is low in order to
maximize efficiency.
NOTE:
If two PSUs are used, they must be of the same maximum output power.
Removing a power supply unit
Prerequisites
CAUTION:
The system needs one power supply unit (PSU) for normal operation. On power-redundant systems, remove and
replace only one PSU at a time in a system that is powered on.
1
Follow the safety guidelines listed in
2
Follow the procedure listed in
Before working inside your system
.
3
Disconnect the power cable from the power source, and then remove the cable from the strap on the PSU handle.
4
Unlatch and lift the optional cable management arm if it interferes with the PSU removal.
For information about the cable management arm, see the system’s rack documentation at
Dell.com/poweredgemanuals
.
Step
Press the release latch and slide the PSU out of the system by using the PSU handle.
Installing and removing system components
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