Mad PSU fan problem

[Strelok]

I have a EVGA supernova 850 G3 gold psu with an annoying fan problem. With the psu switch on eco mode the fan is off and all is quiet and peaceful for about half an hour. Every 30 mins it decides to freak out and cool itself off with a hurricane of wind before settling down again. The PC is custom water cooled and quiet as a whisper so the psu is easily the loudest thing when it's having its hot flash. All happens while idle or doing some light work or browsing. Super annoying when watching a movie. Besides that it works great.

 

This is a known problem with G3's. I don't want to turn off eco mode because then the fan is on all the time. I'd rather not RMA it and be stuck without a working pc for who knows how long.

 

Is there a fix for this aggressive fan curve? Does anyone know how to adjust this mad fan behaviour or is RMA or getting another psu the only option? I do like this psu and would rather keep it.

 

Maybe a fan swap? I've had it apart before so a techy DIY solution is within my skill level.

 

Thanks

[Way2Broke]

Turn off eco?

 

 

[ftahir192]

I've also had the same issue with my G2 for the last 5 years. Have tried various things all to no success. This is a common known problem with EVGA G2 up to G5 (plenty of posts about this even on EVGA's forums) and personally from my experience whilst continuing to use the stock fan, we're SOOL.

[Guest]

18 hours ago, Strelok said:

I have a EVGA supernova 850 G3 gold psu with an annoying fan problem. With the psu switch on eco mode the fan is off and all is quiet and peaceful for about half an hour. Every 30 mins it decides to freak out and cool itself off with a hurricane of wind before settling down again. The PC is custom water cooled and quiet as a whisper so the psu is easily the loudest thing when it's having its hot flash. All happens while idle or doing some light work or browsing. Super annoying when watching a movie. Besides that it works great.

 

This is a known problem with G3's. I don't want to turn off eco mode because then the fan is on all the time. I'd rather not RMA it and be stuck without a working pc for who knows how long.

 

Is there a fix for this aggressive fan curve? Does anyone know how to adjust this mad fan behaviour or is RMA or getting another psu the only option? I do like this psu and would rather keep it.

 

Maybe a fan swap? I've had it apart before so a techy DIY solution is within my skill level.

 

Thanks

Unfortunately, it's a side effect of the fan controller being dependent on temperature only; with no hysteresis for sudden changes in temperature.

[Strelok]

Yeah I thought so. Sucks. EVGA should be replacing all these problematic supernova G model psus for free. Guess I'll be waiting until the next sale. Thanks.

[Guest]

1 hour ago, Strelok said:

Yeah I thought so. Sucks. EVGA should be replacing all these problematic supernova G model psus for free. Guess I'll be waiting until the next sale. Thanks.

 

A couple problems with that idea:

 

• A replacement EVGA G3 is going to do the same thing.
• EVGA burned their bridge with Super Flower, so they're not going to go back and try to fix the problem with a "new and improved" version.

 

Also, a fan swap isn't going to fix the problem because the problem isn't the fan.  It's the fan controller.

 

 

[Strelok]

22 hours ago, jonnyGURU said:

 

A couple problems with that idea:

 

• A replacement EVGA G3 is going to do the same thing.
• EVGA burned their bridge with Super Flower, so they're not going to go back and try to fix the problem with a "new and improved" version.

 

Also, a fan swap isn't going to fix the problem because the problem isn't the fan.  It's the fan controller.

 

 

No way to adjust the controller is there?

 

I figured it would be the same. I wouldn't want another G3 anyway, or now an EVGA for that matter. They should stick to making gfx cards.

 

Will be looking for a decent psu on sale once I get annoyed enough with this one. Cheers.