Installing And Removing A Hot-Swappable Redundant Power Supply Module - Acer AcerAltos 21000 System Manual

2.5 Installing and Removing a Hot-swappable
Redundant Power Supply Module
The power subsystem consists of a power backplane and hot-
swappable power supply modules. These components are held in
place by a metal rack enclosure.
The backplane and the rack allow installation of up to three 430-watt
power supply modules in a hot-swappable redundant configuration. A
redundant power configuration enables a fully-configured system to
continue running even if one power supply fails. The remaining two
power supply modules still satisfy up to 860-watt of system power
requirement.
The power subsystem provides a standby current and a remote on/off
feature to support cold reboot from a remote site. See Chapter 5 for
an overview of the remote diagnostic management (RDM).
The power supply subsystem should supply a minimum 860W (2
power supply modules) DC power to the whole system. An additional
power supply module can also be added for fail-safe redundancy.
System Housing
If fans fail to operate, the power supply
module will shut down. The LED indicators of
the power supply module will be turned off.
If the fans are functioning properly and the
power supply fails, the fans will keep
operating.
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