TeslaPower
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I know that fan in eco mode will turn on after PSU reaches 55C but how much approximately is limit in watts before turning on? 300-400W? Some rough prediction?
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TeslaPower
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Re: Evga G2 850W eco mode
2017/11/12 00:48:46
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fergusonll
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Re: Evga G2 850W eco mode
2017/11/12 09:41:46
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I don't believe anyone can give you a prediction other than their own experience due to every system is different, different cases, system configurations, ambient temps all play a factor. In the grand scheme of things doesn't really matter.
In my system I've had the psu over 550w and the fan never came on, temp was mid 40's. However I don't use eco mode I've found that even having fan on it's lowest rpm setting the psu runs 10-12c cooler.
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TeslaPower
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Re: Evga G2 850W eco mode
2017/11/12 10:17:31
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I think it is possible to give some rough level of prediction. For an example fan on Corsair RM850W will not turn on until 340W so I think that Evga also should be close to this value. I will soon have this components (CPU R5 1700X, GPU RX 580 8GB, 3 HDD and one SSD) and I was wondering will fan in eco mode ever turn up with my components? I think that temperature will not be a big problem because PSU components should be rated to 105C  What components do you have? I presume that Evga 550w also has over 55C temperature rule?
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fergusonll
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Re: Evga G2 850W eco mode
2017/11/12 13:40:14
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I could be wrong but I don't believe wattage draw is what brings on the fan. Even if a psu is drawing high wattage and it is running cool there is no need for fan to come on in eco mode.
I also have HX1000i psu and that psu has seen similar conditions and fan has never came on. Main rig 6700k oc, 1080ti, 3 ssd's, aio cooler.
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TeslaPower
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Re: Evga G2 850W eco mode
2017/11/13 06:15:42
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fergusonll
I could be wrong but I don't believe wattage draw is what brings on the fan. Even if a psu is drawing high wattage and it is running cool there is no need for fan to come on in eco mode.
I also have HX1000i psu and that psu has seen similar conditions and fan has never came on. Main rig 6700k oc, 1080ti, 3 ssd's, aio cooler.
wait, did you used this components on Evga G2 550W and your fan didn`t turn up?  I think that PSU don`t get too hot. I read that one guy used around 300W and his fan on Evga g2 850W didn`t turn on. My room temperature in summer is 30-35C and in winter is around 20C and with that I think I should be fine but I wanted to hear expiriance from other people...
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fergusonll
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Re: Evga G2 850W eco mode
2017/11/13 08:18:59
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Not on 550, used on 850 and 1000. I don't think you'll have any problems and if you're concern with heat then turn off eco-mode.
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QuintLeo
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Re: Evga G2 850W eco mode
2017/11/28 12:20:52
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I can't give a prediction because none of my EVGA G2 supplies ever run in a "low power draw" situation.
IMO ECO mode is a waste of time idea, makes it harder to troubleshoot if you ARE having an issue that could be the PS and doesn't really save significant power or fan wear since it ONLY activates when the fan would be "just barely turning over" anyway.
Now that vorsholk has stopped his abuse, I'm returning to folding. I no longer MOO due to abuses by certain "whales" in the Gridcoin community - so I now work the Distributed.net project directly again. 
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Tech_RayH
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Re: Evga G2 850W eco mode
2017/11/28 14:20:29
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The fan speed is based on temperature and load. If the ambient temp is fairly low, the the fan will be off until about 20% load. 
...an untrammeled flow of words in an open forum. - Adlai E. Stevenson
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TeslaPower
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Re: Evga G2 850W eco mode
2017/11/29 10:19:32
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QuintLeo
I can't give a prediction because none of my EVGA G2 supplies ever run in a "low power draw" situation.
IMO ECO mode is a waste of time idea, makes it harder to troubleshoot if you ARE having an issue that could be the PS and doesn't really save significant power or fan wear since it ONLY activates when the fan would be "just barely turning over" anyway.
My PC is in a very quiet environment and I found fan loud by my standards I will need to test it more with eco mode on and off to carefully see the noise difference but for now eco mode will stay on EVGATech_RayH
The fan speed is based on temperature and load. If the ambient temp is fairly low, the the fan will be off until about 20% load.
So it relies on system load (it will go on above ~200W)  , I thought temperature is only measure. In that case my system in load will always have fan on
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demon09
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Re: Evga G2 850W eco mode
2017/12/06 13:31:38
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TeslaPower
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Re: Evga G2 850W eco mode
2017/12/07 01:41:41
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demon09
at idle your system will not pull 200watts unless you mean your system is allways under load? But in the summer with a 30-35c temp expect you fan to spin up much sooner exspecailly if it's sucking in inside case are
under load I mean games and other stuff like rendering. In idle in surfing I will have quiet system and under load that is not so important because I won`t hear fan because other noise. This summer I haven`t noticed that PSU fan was turning on in idle, ambient temperature was around 33C.
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