Product Features; Technology And Benefits; User Friendly Features; Safety And Protection - Corsair PROFESSIONAL SERIES AX1200i Manual

P R O F E S S I O N A L S E R I E S
Congratulations on the purchase of your new Corsair Professional Series AX1200i digital
ATX power supply.
The Corsair AX1200i is a groundbreaking new design. It is a departure from traditional PSU
designs and is packed with features that will make building your ultimate dream PC even more
enjoyable. The AX1200i introduces some new and exciting technologies, so please read below
for more information.

Product Features

Digitally Controlled Power
Unlike traditional power supply designs, the Corsair AX1200i uses a Digital Signal Processor (DSP)
for optimized efficiency and tighter voltage regulation, which improves overall system stability
and component reliability.
Quiet, Efficient Operation
Upgrading to digital provides increased efficiency. The AX1200i is certified 80 PLUS® Platinum,
which results in lower heat generation and a quieter fan profile. The AX1200i is so efficient that
the 140mm fan doesn't even spin at low loads for completely noiseless power delivery.
Corsair Link™
The built-in Corsair Link™ functionality shows you how your AX1200i is performing at any given
4 moment and lets you quickly tweak its performance. Server-inspired diagnostic tools monitor
real-time efficiency, power usage, configurable over-current protection points and fan profiles.
Brilliant Design
The fully modular cables make it easy to install and the self-test switch lets you quickly determine
if the AX1200i is functioning normally before you even attach cables to your motherboard.

Technology and Benefits

• Digital Control
The AX1200i Digital ATX Power Supply features an advanced control architecture to
produce outstanding dynamic response. It features a true digital engine that provides
superior on-the-fly performance optimization across the full operating range while
maintaining stable operation.
• 80 PLUS® Platinum Efficiency
The sophisticated electrical design, incorporating advanced hybrid digital control and
state of the art magnetics delivers extremely high energy efficiency (92% and above).
• User-Selectable Over-Current Protection
The AX1200i has a massive 100.4 Amp (1204.8 Watt) single +12V rail, which makes it
the ideal power supply for ultra-high end multi-GPU systems based around power-
hungry CPUs. If you prefer multi-rail architecture, the PCI-E Over-Current Protection
trip points can be configured individually via the Corsair Link™ Dashboard software.
• Outstanding DC Voltage Regulation
Due to its digital design, the AX1200i delivers exceptionally stable power over the
whole load range and automatically compensates for DC output cable voltage drop,
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ensuring tight DC output voltage regulation without the ripple/noise, transient
response, and converter stability drawbacks associated with conventional power
supply designs.
• Low DC Output Voltage Ripple and Noise
The AX1200i features individual DC-DC regulation for 3.3V, 5V and 12V rails, and
secondary side synchronous rectification, utilizing MOSFETs that have lower losses
than the conventional output rectification schemes. An advanced 4-layer modular
connector board PCB ensures a better ground return plane, lower resistance and low
voltage drops. This, combined with circuit trace optimization and advanced filtering
techniques, helps to minimize ripple and noise.
• Reduced Component Count and Increased Reliability
The digital control of the AX1200i eliminates many external components required
by more conventional PSU solutions to offer an extremely small, high density, high
reliability solution that allows incremental space to add extra features - like real time
parameter monitoring and power supply control.

User Friendly Features

Fully Modular Cable System
•
The fully-modular, low-profile cable system provides maximum flexibility when building
or upgrading your PC, and maximum airflow through your chassis. This allows you to
utilize only the cables that you need, reducing cable clutter and maximizing the cooling
performance of your PC.
Ultra Low Noise Design
•
The AX1200i utilizes a low-noise, thermally-controlled 140mm fan, and employs
sophisticated techniques to enhance cooling performance and reduce noise. This
includes a specially designed PCB that channels airflow to reduce back-pressure
and maximize the cooling effect of the airflow. The fan remains off under light load
conditions and can be controlled via a graphical user interface.
Self Test Switch
•
The power supply can be validated prior to system installation via a self test switch,
which confirms all DC output voltage rails are present and the fan is functional.

Safety and Protection

• Over-Voltage Protection (OVP)
Over-voltage protection for the 12V, 5V and 3.3V DC outputs is required to comply
with the ATX specification. OVP shuts down the PSU in the event that the DC outputs
exceed a set level, determined by the PSU manufacturer. The minimum voltage levels
required for compliance are 13.4V for the +12V rail(s), 5.74V for the +5V rail and 3.76V
for the 3.3V rail.
• Over-Current Protection (OCP)
The AX1200i features OCP on the 3.3V, 5V and 12V rails. OCP ensures that the output of
the DC voltage rails remains within safe operating limits. The AX1200i can be configured
as a single rail or multi-rail OCP solution.
P R O F E S S I O N A L S E R I E S
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