ZALMAN ZM460-APS User Manual

ZALMAN ZM460-APS User Manual

1. Safety Precautions

The following safety precautions and directions for use are meant to prevent accident and injury. Please read thoroughly before using the product.


Serious injury or death can occur.

Opening the cover of the product while the power cord is plugged into the outlet can result in electrocution or critical damage to the product.

Handling the power cord with wet hands can result in electrocution.

Inserting fingers or metallic objects into the cooling fan can result in injury or electrocution.


Minor injury can occur. May degrade product conditions or cause malfunction.

Operating in an extremely cold or hot environment can degrade product performance and lifespan.

Allowing liquid to get into the product can result in malfunction.

Operating in a humid or non-ventilated environment can reduce product lifespan.

2. Components

1)One Power Supply

2)One FAN Multi-connector (ZM-MC1)

(For supplying power to an extra fan. See page 5 for details.)

3)One S-ATA power convert cable

4)One PCI-Express VGA SLI sub-Cable for power conversion

5)One Power Cord for AC Power Source (Not included in some countries)

6)One User's Manual

7)Zalman Cable Tie

3. Notes on Installation

To ensure safe and easy installation, first read the Safety Precautions above, then read the following notes.

Plugging the main power connector P1 into the main board while the product is connected to the AC power source may result in damage to the main board.

Do not insert the DC output connectors with too much force into devices as the shape of the connector is meant to prevent incorrect insertion.

After installation, if the Power On light on the case does not light up when the main power button is pressed, some devices may be plugged in incorrectly or the main board may be faulty. Please double-check the installation.

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4. The Zalman Advantage

With the goal of enhancing your computing environment, all Zalman Tech products are ultra-quiet. This product is an ultra quiet 460W ATX Ver. 2.03 / ATX12V Ver. 2.01 power supply supporting SLI-capable Intel LGA775 Pentium 4 & AMD Athlon 64/64 FX CPU equipped systems.

CNPS (Computer Noise Prevention System) with Auto Control Cooling Fan

By implementing heat-sensor circuitry that controls the cooling fan’s speed (rpm) in relation to the temperature within the power supply, noise has been greatly reduced.

The graph below shows the CNPS characteristics of our product.

CNPS (Computer Noise Prevention System) refers to a system that reduces a conventional computer’s noise (30dB or more) to an inaudible level (20dB or less). In order to create a true noise-free computer, Zalman’s other noise-free products should be used together with this product.

The graph above shows that the ZM460-APS in “Noiseless” or “Silent” mode can operate when the power supply's internal temperature is kept below 56 . This information is in compliance with the 2nd Revision of ISO7779, an international standard for noise level measurement. Results may vary for different system configuration and/or the test environment.

Improving Power Factor & Eliminating Harmonics through Active PFC

By implementing Active PFC, the power factor (PF) is improved from 75% (Passive PFC) to 96% (230VAC, Full load), while harmful harmonic frequencies are reduced below regulatory requirements.

High Efficiency Design

Designed with a high switching frequency and low power-loss circuitry, the efficiency of this product exceeds 80% (230VAC, Full load).

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