Owners Manual

Figure 68. Removing the system battery
3. To install a new system battery, hold the battery with the positive side facing up and slide it under the securing tabs.
4. Press the battery into the connector until it snaps into place.
Figure 69. Installing the system battery
Next steps
1. Install the expansion card riser 1A.
2. If applicable, connect the cables to the expansion card(s).
3. If applicable, open the PCIe card holder latch on the air shroud to secure the full length expansion card.
4. Follow the procedure listed in After working inside your system on page 57.
5. While booting, press F2 to enter the System Setup and ensure that the battery is operating properly.
6. Enter the correct time and date in the System Setup Time and Date fields.
7. Exit the System Setup.
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 one of the following:
● 1600 W, 1100 W, 750 W AC power supply units (PSUs)
● Two 1100 W DC PSUs
NOTE: For more information, see the Support Matrix.
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 XC Series Appliance and XC Core
System 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: Titanium PSU is nominally rated for 200 V AC to 240 V AC input only.
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.
110 Installing and removing system components