SilverStone 80 PLUS Power Supplies

The function of the power supply is converting the alternating current
provided by the power plant into direct current required by normal
computer system. The power consumption is unavoidable during the
transferring procedure and this result in unusable thermal loss, the
difference during the transfer can be named as efficiency.

Formula Calculations:

Take a system that requires 300W power as example, if it is equipped
with a power supply that has 60% efficiency, then the AC input power
draw would be 500W. Example : 500W x 60% = 300W

The Definition of 80 PLUS?

Ecos Consulting provided a solution, 80 PLUS audit and certification
program, for energy-saving and environment-friendly requirement in
2004. The 80 PLUS program is a unique forum that unites electric
utilities, the computer industry and consumers in an effort to bring
energy efficient technology solutions to the market place. Moreover,
the program indicates the power supply should provide at least 80%
efficiency output rate with stability during 20%, 50% and 100% loading
in order to avoid unnecessary energy consumption to accomplish
energy-saving and environment-friendly goal and ensure consumer can
purchase truly high efficiency power supplies.

In addition, Ecos Consulting announced a new four level of efficiency
certification standard which are standard, bronze, silver and gold.

Multi-output	80 PLUS		80 PLUS Bronze
Type of PSU	multi O/P, nonredundant		multi O/P, nonredundant
VAC	115VAC		115VAC
Percent Loading	efficiency	pf	efficiency	pf
20%	80%		82%
50%	80%	.9	85%	.9
100%	80%		82%

Multi-output	80 PLUS Silver		80 PLUS Gold
Type of PSU	multi O/P, nonredundant		multi O/P, nonredundant
VAC	115VAC		115VAC
Percent Loading	efficiency	pf	efficiency	pf
20%	85%		87%
50%	87%	.9	90%	.9
100%	85%		87%

The advantage of 80 PLUS certified power supply

In the past, consumers did not pay attention to high efficiency, a
typical power supply with 300W input usually results in 210W output
after the current transferring procedure. This means there is only 70%
energy that can be provided to the system. To reach full 300W output, a
power supply will need at least 430W input, the difference between
input and output that transfers into thermal loss reduces the lifetime
of power supply and increases the loading of power supply’s cooling
fan, often causing uncomfortably high noise level.
If an 80 PLUS
certified high efficiency power supply is used, then the user can enjoy
the advantage of energy-saving and money-saving to have longer lifetime
of power supply, more stability and quiet operating environment.

The Benefits of 80 PLUS:

1. Save energy
   With high efficiency, the power supply can reduce the consumption of
   electricity during the current transferring procedure to save energy.
2. Increase the lifetime of power supply
   High efficiency can reduce heat generated inside the power supply and increase its operating hours
3. More stable system
   Due reduction of heat generated, the temperature of the power supply
   can be lower which can also lead to a more stable system
4. Quiet environment
   A power supply with high efficiency can achieve lower operating
   temperature so the power supply fan can operate with a lower speed to
   reduce noise
5. Save money
   A power supply with high efficiency can reduce the consumption of
   electricity to save money. For further information about the benefits
   of 80 PLUS power supply, please refer to the calculating program
   provided by 80 PLUS official website. http://www.80 PLUS.org/80sav.htm

SilverStone 80 PLUS power supplies