3. Insert the replacement USB memory key into the USB port.
Next steps
1.
.
2. Follow the procedure listed in
after working inside your system
.
3. 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 one of the following:
•
Four 2400 W, 2000 W, 1600 W, or 1100 W, 750 W AC PSUs
•
Four 750 W DC PSUs (for China only)
•
Four 1100 W DC PSUs
•
Four 1100 W or 750 W (for China only) Mixed Mode HVDC PSUs
.
CAUTION:
If multiple 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:
Titanium PSU is nominally rated for 200 V AC to 240 V AC input only.
NOTE:
When identical PSUs are installed, power supply redundancy (2+2 – with redundancy or 4+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 multiple PSUs are used, they must be of the same maximum output power.
Hot spare feature
NOTE:
Before removing the power supply, ensure that your system is configured with a hot spare power supply.
NOTE:
Ensure to check, if the system has multiple hot spare power supplies installed in it.
Removing a power supply unit blank
Prerequisites
Follow the safety guidelines listed in
Steps
If you are installing an additional PSU, remove the PSU blank in the bay by pulling the blank outward.
CAUTION:
To ensure proper system cooling, the PSU blank must be installed in the empty PSU bays in a non-redundant
configuration. Remove the PSU blank only if you are installing a PSU.
Installing and removing system components
139
Содержание PowerEdge R940xa
Страница 15: ...Figure 9 Configuration and layout Figure 10 Express service tag PowerEdge R940xa system overview 15 ...
Страница 17: ...Figure 13 Rear view configuration Figure 14 Jumper settings PowerEdge R940xa system overview 17 ...
Страница 19: ...Figure 18 Electrical overview PowerEdge R940xa system overview 19 ...
Страница 119: ...Figure 86 Installing the X8 PCIe Riser 1 Installing and removing system components 119 ...