Behringer iNuke NU3000 w/o any fan...? - Page 4 - diyAudio
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Old 3rd May 2012, 05:26 PM   #31
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I would have used a heat sink with a much larger surface area. The ones you used seem to be quite small. Can't determine much from the picture. I was considering something much larger physically. If (!) I get it done , I'll put up some pictures. I think I need to measure temperatures first. Will bring out my temp meter . Need to get some 100 watt dummy loads first.
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Old 4th May 2012, 02:34 AM   #32
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The adhesive heat sink was suggested by some one at (I think) Home Theater Shack. Ashok, I look forward to your (or anyone's) mods to the amp.

Here is a link the the HTS discussion mostly about different fan options:

http://www.hometheatershack.com/foru...ow-w-pics.html

Last edited by Soldermizer; 4th May 2012 at 02:50 AM.
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Old 4th May 2012, 01:53 PM   #33
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What about an oilcooled Inuke?

Vegetable Oil Pc whit test of temperature pc olio - YouTube!!!!!!!!!!!!!!
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Old 4th May 2012, 10:57 PM   #34
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Hmmm. Tempura HEXFETs .... yummy!


Some more data points:
Freq = 25 Hz; 18 V = less than 1 minute to protect;
12.6 V Same;
9.61 V = protect after about 1:30 (MM:SS);
7.4 V (29 Hz), still ok up to 10:00 without any protect. ( = 14 watts RMS);

Last edited by Soldermizer; 4th May 2012 at 10:59 PM. Reason: Smart *** mode was activated
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Old 5th May 2012, 02:38 PM   #35
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I watched a few videos of the "oil cooled PC" concept. I didn't realize it was such a hobby. I did a search for similar amplifier but found none. In principle it would work the same for electronics such as the NU3000. I would try it if I had an application that demanded maximum power from the amp.

Clean-up: I wonder how much of a hassle it is to clean the oil off the electronics? A lot, I bet. Just washing pots and pans that have had oil in them seems a challenge. On the other hand, I have washed (with water and detergent) many electronic items, mostly with success.
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Old 5th May 2012, 04:08 PM   #36
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If you have a leak and oil spills all over the board you will hardly be able to clean it up properly. The oil will also attract dust and it will cake up at points along the board. I think it will be a total disaster ! I would never risk it on the nu3000. PC over clockers do all kinds of crazy things. Crazy procedures go hand in hand with disaster , only a fine line divides them. This is a classD amp. It shouldn't need that level of cooling !
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Old 6th May 2012, 06:54 PM   #37
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I would guess the entire amp would be submerged in oil. In that case, your concern about a spill applies. However, the amp would only be removed for "scheduled maintenance." Dust and dirt would not necessarily be a problem. However, how to clean off the oil would be. Unlike some of my crazy ideas, I am not likely to try this one ... I hope!
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Old 9th May 2012, 02:03 AM   #38
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Oh darn it, the experimenter instinct has taken over. I am now the proud owner (?) of a tote (storage box) with gallons of mineral oil covering the guts of my desktop PC. It works (how long is anyone's guess.) I thought that disconnecting the one remaining fan (the CPU cooler) would give me a silent PC. No. The HDD still makes audible noise. I guess a SSD will soon be on order. So far the NU3000 remains safe and dry on the shelf.
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Old 9th May 2012, 07:37 AM   #39
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I have made a few "silent" PC's and it's mot the fans that at noise. Keep a fan or two but large silent ones. I get rid of the small 1 inch fan in the PSU and replace with 80 mm/3 inch silent fan, and another 80 mm/3 inch in the cabinet to get som flow. Keep fan speed at a minimum, and the fans will be inaudible.

I found a 3,5 inch samsung disk that was very silent. Otherwise 2,5" disks are more silent that 3,5 inch. SSD of course dead silent and fast, but expensive.

I have a nexus fan right now, as mentioned i a answer above. It's very silent, even at middle fan speed.

Last edited by Kjeldsen; 9th May 2012 at 07:42 AM.
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Old 9th May 2012, 12:12 PM   #40
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Quote:
Originally Posted by Soldermizer View Post
Oh darn it, the experimenter instinct has taken over. I am now the proud owner (?) of a tote (storage box) with gallons of mineral oil covering the guts of my desktop PC. It works (how long is anyone's guess.) I thought that disconnecting the one remaining fan (the CPU cooler) would give me a silent PC. No. The HDD still makes audible noise. I guess a SSD will soon be on order. So far the NU3000 remains safe and dry on the shelf.
I know the feeling! Was the oil expensive? Can you notice any change in oiltemp when the computer is working?
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