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GlacialPower GP-PS550BP 550W Power Supply Review

GlacialPower GP-PS550BP 550W Power Supply Review - PCSTATS
Abstract: GlacialPower's GP-PS550BP power supply is looking mighty nice from the specs alone. It delivers 550W of real power, has an energy efficiency rating of 78% and strong 12V rails.
 81% Rating:   
Filed under: Power Supply Published:  Author: 
External Mfg. Website: Glacialpower May 17 2007   Max Page  
Home > Reviews > Power Supply > Glacialpower GP-PS550BP

Inside the GlacialPower PSU

Getting into the GlacialPower GP-PS550BP is no easy task, the casing is designed differently from traditional power supplies. Inside we see a fairly average mix of heatsinks, capacitors, filters, transformers and other components.

The fuse is soldered in place, and the fan leads are soldered to the PCB as well - so effectively there are no user serviceable parts here, and replacing the fan several years down the road will be tricky. Up next, power supply load testing.

Testing the GlacialPower PSU

The price of energy is increasing world wide, so any reduction in the amount of power a computer draws is a welcome change in our books. Power supplies which employ Power Factor Correction (PFC, or A-PFC) help ensure efficient conversion of AC to DC voltage, and reduce the amount of energy wasted as heat. The following power supply tests were all conducted with an Extech Model 380803 Power Analyzer located between the mains 120AC supply and the power supply, and with a 120W dummy load. Power jitter is measured with a Mastech MS8230B Multimeter at the device power connectors. The test apparatus and power meters are shown below.

Here is a picture of the PCSTATS test set we'll use to evaluate the power supply. The power supply looking device is actually a 120W dummy load.

Power Jitter Observations - Motherboard

Voltage jitter is read by accessing the power options displayed in the motherboard BIOS, with the system obviously in an unloaded state. *All voltages were read from the BIOS of an Asus A8N-SLI Premium motherboard.

Power Jitter Observations - Motherboard

Listed Voltages

Lower Voltage

Upper Voltage

Jitter

+3.3V

3.2V

3.3V

0.1V

+5.0V

4.98V

4.99V

0.01V

+12V

11.7V

12V

0.3V

-12V

11.99V

11.99V

0V

-5.0V

5.00V

5.00V

0V

+5.0Vsb

5.00V

5.00V

0V

The GlacialPower GP-PS550BP power supply provides some pretty stable voltage values, at least according to the motherboard. let's see what a multimeter says next.

Power Jitter Observations - Multimeter

Voltage jitter was read by a Mastech MS8230B Multimeter with the system in an unloaded state. During testing the power supply is was still connected to a full computer and voltage values.

Power Jitter Observations - Multi-Meter

Listed Voltages

Lower Voltage

Upper Voltage

Jitter

+3.3V

3.3V

3.3V

0V

+5.0V

5.0V

5.0V

0V

+12V

11.9V

11.9V

0V

Readings from the multimeter show that the GlacialPower GP-PS550BP provides stable power, let's see how efficient the power supply is next.

Next up, power supply load tests.

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: Glacialpower GP-PS550BP
 Pg 1.  GlacialPower GP-PS550BP 550W Power Supply Review
 Pg 2.  Building a Quiet Power Unit
 Pg 3.  — Inside the GlacialPower PSU
 Pg 4.  Power Load Testing

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