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Enermax MODU87+ 600W Power Supply Review

Manufacturer: Enermax
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Introduction and Features

Introduction

                   

Enermax has a well earned reputation for delivering reliable power supplies, enclosures, and other accessories to the PC enthusiast market.  Enermax recently introduced their new MODU87+ and PRO87+ series power supplies, which currently include three models: 500W, 600W, and 700W with more to follow.  The main difference between the Modu87+ and the Pro87+ PSUs is modular versus fixed cables.  A unique feature that both lines share is what Enermax refers to as Dynamic Hybrid Transformer Topology (DHT).  The focus of DHT is to dynamically change the operating voltage and frequency in the AC side of the PSU to help maximize overall efficiency.  And as you will see later on in this review, the MODU87+ 600W PSU did prove to be very efficient and extremely quiet.

Enermax MODU87+ 600W Power Supply

The new MODU87+ series power supplies from Enermax are designed to deliver stable outputs with high efficiency and minimal noise.  Both MODU87+ and Pro87+ power supplies are 80Plus Gold certified to be at least 87% efficient from 20% thru 100% of the rated output power. 

Enermax MODU87+ 600W PSU Key Features:

•    600 watt continuous power output

•    24/7 Industrial class performance at 50°C ambient

•    High efficiency operation 87-92% (80Plus Gold certified)

•    Dynamic Hybrid Transformer Topology

•    Supports high-end graphic cards with four 6/8-pin PCI-E connectors

•    DXXI Ready (supports new generation >300W DXXI graphic cards)

•    139mm fan features Twister bearings for long life

•    Three +12V rails with up to 50A (600W)

•    High-quality Japanese capacitors for maximum durability and stability

•    SafeGuard: Protection circuits for OCP, OVP, UVP, OPP, OTP and SCP

•    HeatGuard: keeps fan running for 30~60 seconds after shutdown

•    CordGuard: AC cord fixed to avoid accidental shutdowns

•    Future Ready: 12-pin modular design

PSU Testing Methodology

Establishing an accurate load is critical to testing and evaluating a PC power supply.  PCPerspective’s power supply test bench can place a precise 2,000 watt DC load on the PSU under test.  Each power supply is tested under controlled, real-world conditions up to its maximum rated load, using both 115 VAC and 240 VAC line voltage.  Our current suite of tests includes:

•    DC Load Regulation

•    DC Line Regulation

•    DC Cross-load (unbalanced load)

•    AC Ripple and Noise

•    Power Factor

•    Efficiency

•    Differential Temperature

•    Noise


The Enermax MODU87+ 600W power supply was evaluated on both features and performance.  A full range of equipment was used to test the power supply under controlled load conditions. 

•    (2) CSI3710A Programmable DC load (+3.3V and +5V outputs)

•    (4) CSI3711A Programmable DC load (+12V1, +12V2, +12V3, and +12V4)

•    Extech MultiMaster MM570 digital multimeter (Accuracy ±0.02%)

•    Extech 380803 Power Analyzer (Accuracy ±0.5% of full scale)

•    Hitachi V-650F 60 MHz dual trace oscilloscope (Accuracy ±3%)

•    Powerstat Variable Autotransformer, 1.4 KVA, 0-140 VAC

•    Extech Model 407750 digital sound level meter (Accuracy ±1.5 dB)

•    Custom PC60 enclosure to simulate real-world operating conditions


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