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What does power supply 80Plus means?

nickpokesyou
By nickpokesyou
in Power Supplies
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Posted

Its a certification on efficiency.. Just check this: http://en.wikipedia.org/wiki/80_Plus

[TABLE=class: wikitable]

[TR]

80 Plus test type

115V internal non-redundant

230V internal redundant

[/TR]

[TR]

Fraction of rated load

10%

20%

50%

100%

10%

20%

50%

100%

[/TR]

[TR]

[TD]

80 Plus[/TD]

[TD]

[/TD]

[TD]

80%[/TD]

[TD]

80%[/TD]

[TD]

80%[/TD]

[TD]

[/TD]

[TD]

[/TD]

[TD]

[/TD]

[TD]

[/TD]

[/TR]

[TR]

[TD]

80 Plus Bronze[/TD]

[TD]

[/TD]

[TD]

82%[/TD]

[TD]

85%[/TD]

[TD]

82%[/TD]

[TD]

[/TD]

[TD]

81%[/TD]

[TD]

85%[/TD]

[TD]

81%[/TD]

[/TR]

[TR]

[TD]

80 Plus Silver[/TD]

[TD]

[/TD]

[TD]

85%[/TD]

[TD]

88%[/TD]

[TD]

85%[/TD]

[TD]

[/TD]

[TD]

85%[/TD]

[TD]

89%[/TD]

[TD]

85%[/TD]

[/TR]

[TR]

[TD]

80 Plus Gold[/TD]

[TD]

[/TD]

[TD]

87%[/TD]

[TD]

90%[/TD]

[TD]

87%[/TD]

[TD]

[/TD]

[TD]

88%[/TD]

[TD]

92%[/TD]

[TD]

88%[/TD]

[/TR]

[TR]

[TD]

80 Plus Platinum[/TD]

[TD]

[/TD]

[TD]

90%[/TD]

[TD]

92%[/TD]

[TD]

89%[/TD]

[TD]

[/TD]

[TD]

90%[/TD]

[TD]

94%[/TD]

[TD]

91%[/TD]

[/TR]

[TR]

[TD]

80 Plus Titanium[/TD]

[TD]

[/TD]

[TD]

[/TD]

[TD]

[/TD]

[TD]

[/TD]

[TD]

90%[/TD]

[TD]

94%[/TD]

[TD]

96%[/TD]

[TD]

91%[/TD]

[/TR]

[/TABLE]

CPU: AMD FX 8120 @4.5Ghz - CPU cooler: Cooler Master Nepton 240M Watercooling - Mobo: Asus M5A97Pro - GPU: Sapphire Radeon R9 280X Vapor-X @ 1200Mhz - Memory: Kingston Hyper X 16GBs DDR3 - Storage: Kingston SSD & Seagate Baracude HDD - PSU: Cooler Master V850W PSU- Case: Cooler Master Cosmost II

-- Build Log old PC (HAF XB): 'the Cube': http://linustechtips.com/main/topic/36288-the-cube-cooler-master-haf-xb/ --

 

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To elaborate on that, it's the efficiency at which the PSU outputs. Because computer components all run on DC power, it needs to be converted from AC which is what your mains are. However some of that is lost during conversion. If a PSU is certified 80Plus it means it puts out at least 80% of the intake. So if the PSU is drawing 1000 watts from the wall, it is guaranteed to be outputting at least 800w. The higher you go in the rating, the more efficient or the less power that is lost in conversion. The chart above outlines the various certifications.

Why would you want 80Plus? Basically it saves on your energy bill because you have to draw less power from the wall to achieve the same result. However calculations have shown that the variation between 80Plus Bronze and 80Plus gold for example often do not warrant the aditional purchase price across a lifespan of 1-3 years.

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If im having a 1000W PSU, it means im draining 1000W 24/7?

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If im having a 1000W PSU' date=' it means im draining 1000W 24/7?[/quote']

No it doesn't.

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It draws as much as your system is asking for. Well a litlle more because it isn't 100% eficient

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