Dell PowerEdge T610 - Manual (Page 21)

Dell
PowerEdge T610 Technical Guide 21
5 Power, Thermal, Acoustic
5.1 Power Efficiencies
One of the main features of the 11G family of servers is enhanced power efficiency. The T610
achieves higher power efficiency by implementing the following features:

User-selectable power cap (subsystems throttle to maintain the specified power cap)

Improved power budgeting

Larger heat-sinks for processors and IOH

Accurate inlet temperature

Power-supply and voltage-regulator (VR) efficiency improvements

Use of switching regulators instead of linear regulators

Closed-loop thermal throttling

Increased rear venting and 3D venting

Pulse-width modulated (PWM) fans with an increased number of fan zones and configuration-
dependent fan speeds

Use of DDR3 memory (lower voltage compared to DDR2, UDIMM)

Processor VR dynamic phase shedding

Memory VR static phase shedding

Random time interval for system start

Ability for an entire rack to power on without exceeding the available power

BIOS Power/Performance options page

BIOS-based CPU P-state manager (power management in a virtualized environment)

Active Power Controller (BIOS-based CPU P-state manager)

Ability to power down or throttle memory

Option to disable a processor core

Ability to turn off embedded NICs or PCIe lanes when not being used

Option to run PCIe at Gen1 speeds instead of Gen2
5.2 Main Power Supply
The base redundant system consists of two hot-plug 570W Energy Smart (energy efficient) power
supplies in a 1+1 configuration. A redundant 870W high-output power supply is also available.
The power supplies connect indirectly to the planar through the power distribution board (PDB).
There is a power cable that connects the PDB to the backplane. Another cable also connects the PDB
to the optical and tape drives.
Field replaceable unit (FRU) data is stored in the memory of the power supply microcontroller.
Additionally, the power supply firmware can be updated by the iDRAC over the PMBus.
Power is soft-switched, allowing power cycling with a switch on the front of the system enclosure, or
through software control (through server management functions).