Dell
PowerEdge T310 Technical Guide
5 Power, Thermal, Acoustic
5.1 Power Supplies
The Dell™ PowerEdge™ T310 system includes a single non-redundant 375W power supply or an
optional redundant 400W power supply.
The power supply subsystem provides power to the planar, four internal hard drive bays (cabled hard
drive chassis), the hard drive backplane (hot-plug hard drive chassis), and the two 5.25‖ drive bays.
Power is soft-switched, allowing power cycling using a switch on the front of the system enclosure or
through software control (through server management functions). The power system is compatible
with industry standards, such as ACPI and Server 2000.
For a redundant power supply configuration, the second power supply provides hot-pluggable power
redundancy. In redundant mode, the system distributes the power load across both power supplies to
maximize efficiency. When a power supply is removed with the system powered on, the full power
load is picked up by the remaining power supply.
If using only one hot-plug power supply, the power supply is installed in the PS1 location and a blank
module (metal cover) is installed in the PS2 location for factory consistency. Electrically, the system
can operate with a single power supply in either bay. The power supply has automatic input voltage
detection. An auxiliary power-out receptacle is not provided on this unit.
The type of power supply can be selected when ordering a system. After purchase, upgrading from a
non-redundant to a redundant configuration, or vice-versa, is not possible.
5.2 Power Supply Specifications
Table 5 shows the power supply specifications.
Table 5. Power Supply Specifications
375W Power Supply
(Non-redundant)
400W Power Supply
(Redundant)
one bi-color Light Emitting Diode
15 Amps @ 120 VAC, 10 Amps @ 240 VAC
140A per supply for 10ms
or less
55A per supply for 10ms or
less
35A per supply for 10ms
or less
25A per supply for 10ms or
less