Today we get to look at a new power supply from Cooler Master in the form of the iGreen 500w PSU. This power supply is designed to meet the latest environmental emissions regulations by adhering to both Energy Star and Blue Angel standards.

Packaging and contents:

As always with Cooler Master the packaging is top notch. The PSU and accessories are packaged in an egg crate box to help protect the product during shipping.

The 2 images above show the bottom of the PSU. The bottom contains the 120mm fan and has a mirror like finish. As with most power supplies these days, the rear uses a honeycomb design made of steel mesh. This is an excellent system for great air flow.

The side panels provide us with the standard Output specifications that you find on most units today.

AC INPUT	115V/230V 10A/5A 60/50Hz
DC OUTPUT	+5V	+3.3V	+12V 1	+12V 2	+12V 3	-12V	5VSB
MAX	25A	20A	19.5A	19.5A	19A	0.8A	3.5A
CONTINUITY	20A	15A	14A	13A	6A	0.5A	3.0A
MAX POWER	141W		396W			6W	15W
500W (continuous)

Inside the Box:

The following several images show you the inner components of our power supply. For testing purposes the power supply is removed from the protective casing then tested with meters to collect our output statistics.

In the 2 images above if you look closely you can see large amounts of a grey colored epoxy. Unsure as to why so much epoxy has been used I contacted Cooler Master and they stated that it was required to secure components in those specific areas during development stages. Let’s see how the unit actually performs, and if it gets noisy when placed under heavy load.

The image above and to the right shows the 120mm fan that exhausts heat out of the power supply.

Above you can see the removal of the actual circuit board from the protective casing. The image to the right shows the underside of the circuit board that allows our power supply to operate.

The Cables

The next series of images will show all the available connections that the iGreen power supply offers. Unlike the previous power supply the Real Power 550 watt, the cables on this unit are all nicely wrapped in a protective sheathing and have the area at the end of the sheathing secured with shrink wrap tubing.

The 2 images above give a closer look at the main power connections. First to the left is the 24 pin power connection. To the right you can see the 4 pin cable to supply power if you have a single CPU; and the 8 pin cable for those that are running systems with dual core processors.

Above left you have a shot of the 2 PCI-e 6 pin connectors, the centre image shows the ample supply of SATA connectors, and finally to the right you have the 4 pin standard Molex connectors and 1 floppy drive connector.

According to Cooler Master this unit will run at 80% efficiency with a 100 watt load, 85% efficiency with a 250 watt load and 82% efficiency at full load of 500 watts. In order for the power supply to achieve this level of efficiency it uses what is referred to as “Double Forward Switching Technology”. The power supply uses this intelligent circuit configuration to stabilize your power output without costing you a small fortune.