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need help understanding this "80 plus" thing

post #1 of 7
Thread Starter 
so when I look for power supplies I always look at the power efficiency thing. what I don't understand is the grade of it, I see 80 bronze, 80 silver and 80 gold, my question is what does this actually mean? and what does it mean if it just says "80 plus"?
:3
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post #2 of 7
efficiency

80+ means taht PSU is 80% effiecent
which IIRC if a PSU's rated at 600w at full load, it actually draws 720w from the wall

well I think thats it
correct me if i'm wrong

Edit:
this might help explain things
http://www.anandtech.com/show/2624/3
post #3 of 7
Thread Starter 
Quote:
Originally Posted by Mr.Pie View Post
efficiency

80+ means taht PSU is 80% effiecent
which IIRC if a PSU's rated at 600w at full load, it actually draws 720w from the wall

well I think thats it
correct me if i'm wrong

Edit:
this might help explain things
http://www.anandtech.com/show/2624/3
but what are the different grades? I mean the bronze grade etc
:3
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post #4 of 7
If it just says 80 plus then it will be 80 plus bronze. The different levels are levels of efficiency, so bronze means it must maintain over 80 % efficiency, while silver means I think around 83% and gold is 85% efficiency. I probably got those numbers wrong but you get the idea anyway.
post #5 of 7
Thread Starter 
Quote:
Originally Posted by eggs2see View Post
If it just says 80 plus then it will be 80 plus bronze. The different levels are levels of efficiency, so bronze means it must maintain over 80 % efficiency, while silver means I think around 83% and gold is 85% efficiency. I probably got those numbers wrong but you get the idea anyway.
I see. im not really bothered about power consumption, as long as it feeds my pc then I am more than happy thanks
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post #6 of 7
If it just says 80plus it means that it has efficiency of over 80% at 20% load, 50% load, and 100% load.

If it says 80plus bronze it means that it has efficiency of 82% at 20% load, 85% at 50% load and 82% at 100% load.

Silver is 85, 88, 85

Gold is 87, 90, 87

Platinum is 90, 92, 89

This is for 115V ac, 230V has different numbers because 230v ac means more efficient power supplies.

The benefits of higher efficiency is that the power supply wouldn't heat up as much (less energy wasted as heat) which means that it can run quieter. 80+ Gold power supplies tend to be almost silent because of this.
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post #7 of 7
Thread Starter 
Quote:
Originally Posted by Cepheus View Post
If it just says 80plus it means that it has efficiency of over 80% at 20% load, 50% load, and 100% load.

If it says 80plus bronze it means that it has efficiency of 82% at 20% load, 85% at 50% load and 82% at 100% load.

Silver is 85, 88, 85

Gold is 87, 90, 87

Platinum is 90, 92, 89

This is for 115V ac, 230V has different numbers because 230v ac means more efficient power supplies.

The benefits of higher efficiency is that the power supply wouldn't heat up as much (less energy wasted as heat) which means that it can run quieter. 80+ Gold power supplies tend to be almost silent because of this.
ahhhhhh. thanks lots
:3
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