brichi

Too much in one case? heat issues?

45 posts in this topic

One thing to know the way those power supplies are built they dissipate all their heat through the aluminum case on the outside and use the fan to draw the air through and around that case to keep it cool. So you generally want a little space between power supplies.

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5 minutes ago, brichi said:

if you look close at their P&P 16 package you can see they just did slotted vents in the back

Yes, I see that however the PS covers a portion of it. I am guessing the use a portion of it to suck the cool air in, as your principal above. Being in a small box I can see that it would require a cooling source.

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2 hours ago, brichi said:

Thanks guys, the Buddi have on a bigger box, it would be too big for the sides of the CG-1500 though.

 

TheDucks, which vent are you using?  I was going to mount the LOR weatherproof PS on the outside but its only 200W so i decided to keep it for the small window LED setup. 

 

option "B" in the first link may work, thanks  http://www.budind.com/view/NEMA+Box+Accessories/Air+_+Moisture+Vents

https://www.amazon.com/gp/product/B008OJ7J62/ref=oh_aui_detailpage_o00_s01?ie=UTF8&psc=1

but it only works on the front or back :(

I have a 60mm fan that is perfect. I plan on using it as Exaust near the top

you might as well use the Bud for the money (it was under $8 when I bought it

I got the 300W Holiday Coro supplies (3@12V, 1@5V) during their salea few months back

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Here is my Pre-test wiring setup. There is almost 1/2" play underneath the PS's and the pixie16 to allow airflow.

IMG_7511_zpsfdlzf2wv.jpg

IMG_7154_zpsmkkyfrfg.jpg

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Silly question... But do the PSU fans suck in  or blow out?

Ya donna wana fight mother nature (heat rises)

 

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Note in my first reply I accidentally hit the "2" for pixie 16's. Of course all can see uts only 1. No edit button as soon as it posted.

JR

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i thought they sucked out, when they kick in the air if blowing against my hand

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1 minute ago, TheDucks said:

Silly question... But do the PSU fans suck in  or blow out?

Ya donna wana fight mother nature (heat rises)

 

That was my rational in installing a vent on both top and bottom of the door.

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Posted (edited)

I have yet to see my fans come on. It doesn't mean they don't, I just don't sit around all day. Its in my garage and its cool in there. Every time I look its not running. I am assuming they blow out. The PS's have ventilation all around the bottom. They come on automatically due to operating temp.

 

I placed my vents dead center and splitting both of the fans.

Edited by dibblejr

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are you saying i sit around all day? LOL  JK

 

I can easily get my fans to kick on, set all 6 trees to all white and the fans come on in 5 seconds

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2 minutes ago, brichi said:

are you saying i sit around all day? LOL  JK

 

I can easily get my fans to kick on, set all 6 trees to all white and the fans come on in 5 seconds

Are you going to sign up for the beta test? It was posted last week. Once I get my matrix wiring finished I am going to jump on it. They are looking for people to Beta Test the pixie16's

JR

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damn, i want to, i must have missed it, where did it post?

 

 

 

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Posted (edited)

The fans on the power supplies are usually orientated so that they blow air out of the hole on the top drawing air in all around the power supply case. 

I wanted to edit this and say because most of these are made in China I wouldn't assume this to be the case on all power supplies

Edited by Ebuechner

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29 minutes ago, brichi said:

damn, i want to, i must have missed it, where did it post?

 

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On 4/5/2017 at 6:57 AM, dibblejr said:

... as close to the top as I could, since warm air rises

The fans on the PSU will push the warm air before it has a chance to rise. I would take the advice to route the fan output directly out so it doesn't circulate hot air. If you keep all the holes on the bottom then any water getting in will have a place to drain.

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Posted (edited)

I know I am high jacking a little here, but my question is, has anyone noticed a difference in 5 volt (60 amp) and 12 volt power supplies and the frequency of a fan running?   I have used 12 volt power supplies (30AMP) the last 4 years and never heard the fan run in my testing- (most specifically I ran 2 power supplies on 16 ribbons on a falcon controller in a test pattern)..   This year I got some 5 volt pixel nodes and my testing has the fan running as soon as a single strand of 50 nodes is connected with a very simple test pattern.

Seems to be a waist of energy to have the fan running so quickly with such little load.

Edited by steve synek

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8 minutes ago, steve synek said:

I know I am high jacking a little here, but my question is, has anyone noticed a difference in 5 volt (60 amp) and 12 volt power supplies and the frequency of a fan running?   I have used 12 volt power supplies (30AMP) the last 4 years and never heard the fan run in my testing- (most specifically I ran 2 power supplies on 16 ribbons on a falcon controller in a test pattern)..   This year I got some 5 volt pixel nodes and my testing has the fan running as soon as a single strand of 50 nodes is connected with a very simple test pattern.

Seems to be a waist of energy to have the fan running so quickly with such little load.

I posted above, I have never heard or seen mine run either. 12v but I am new to pixels.

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13 hours ago, steve synek said:

I know I am high jacking a little here, but my question is, has anyone noticed a difference in 5 volt (60 amp) and 12 volt power supplies and the frequency of a fan running?   I have used 12 volt power supplies (30AMP) the last 4 years and never heard the fan run in my testing- (most specifically I ran 2 power supplies on 16 ribbons on a falcon controller in a test pattern)..   This year I got some 5 volt pixel nodes and my testing has the fan running as soon as a single strand of 50 nodes is connected with a very simple test pattern.

Seems to be a waist of energy to have the fan running so quickly with such little load.

This might depend on the power supply you bought. I've got some power supplies that turn the fan on based on load instead of on temperature. Having the fan turn on based on load really isn't the way to do it, these were cheap power supplies I got from Amazon that I would never buy again. 

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I suspect the Fan is making up for an undersized heat sink.  :(

Those fans usually are a fraction of an Amp anyway.

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