Better Heatsink for your USB Block Erupters

[Bitcoinbernd]

Hi everybody

I would like to show you a way how to provide better passive cooling for your USB Block Erupters. This might extend the life expectancy of your sticks (I hope!).

• Step 1: Unscrew the original cooler.
  
  
  
• Step 2: Eiter place the original thermal pad, or order the Phobya thermal-pad for thermal transfer between the board and your passive cooler. (One Phobyastripe is enough for three Block Erupters)
  
  
  
• Step 3: Using cable ties mount your northbridge passive cooler onto your Block Erupter.
  
  
  
• Step 4: Optionaly attach one of the Raspberry-Pi-Heatsinks directly onto the ASIC on the other side of the board
  
  (Im sorry I cannot provide a picture for this. Im still waiting for delivery of these...)
  

Have fun.

[1714618394]

1714618394

[1714618394]

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[jeroenn13]

That heatsink is HUGE.

[Bitcoinbernd]

That heatsink is HUGE.

I got three USB Block Erupters. And the cooler on the picture above is the smallest of all three. Here are the other ones:

[innovation]

You seems to paint the lily.
The oringe heatsink is enough.
你的做法是画蛇添足。

[HTML5 Gordon]

My USB fan is doing a great job keeping mine cool.  That heatsink is cool, but probably overkill.  Not to mention, I wouldn't be able to still fit them in my hub next to each other. 

[dogie]

Look for GPU memory heatsinks, the individual ones. They'd be perfect size.

[af_newbie]

Those sinks will not fit in 10+ hubs, like Anker.  Just blow air at it, they are cool to touch.

[qwk]

I like to overdo stuff:

[Bitcoinbernd]

Hahaha, fabulous, qwk!
Is the entire heatsink getting hot or at least warm?

Try removing the original heatsink and attach the Erupter along with its original thermal-pad on your heatsink. Dont worry, its not sticky or anything.

[crazyates]

I like to overdo stuff:

HAHA omg. A heatsink designed for 100W of heat, and it's dissipating 3W? 2.5W?

• Step 2: Eiter place the original thermal pad, or order the Phobya thermal-pad for thermal transfer between the board and your passive cooler. (One Phobyastripe is enough for three Block Erupters)
  [img ]http://ecx.images-amazon.com/images/I/21iR1997geL._SX342_.jpg[/img]
  

7W/mK? If you were serious about cooling your miner, you'd get the best thermal pads money can buy: Fujipoly 17W/mK.

[Bitcoinbernd]

If you were serious about cooling your miner, you'd get the best thermal pads money can buy: Fujipoly 17W/mK.

Thanks for your advice!

[qwk]

Is the entire heatsink getting hot or at least warm?

Luke warm to the touch. I get a reading of up to 30 C˚ on my thermometer.
Hottest spot on the Asic is about 51 C˚.

Try removing the original heatsink and attach the Erupter along with its original thermal-pad on your heatsink. Dont worry, its not sticky or anything.

I'll see 

[Bitcoinbernd]

I get a reading of up to 30 C˚ on my thermometer.
Hottest spot on the Asic is about 51 C˚.

Alright, now I am REALLY interested in the values after you remove the original heatsink!

[intron]

Did some experiments with forced air cooling of my USB Erupter.
See attached plot, what a little USB powered fan can do:

http://imgur.com/co3Z0uF

intron

[Bitcoinbernd]

@intron: Oh, thats cool. How did you do that?

[intron]

@intron: Oh, thats cool. How did you do that?

Taped a tiny Pt100 sensor to the heatsink and recorded
the temperature over time. When the temperature was at it's
max, a fan was pointed at it. You can see nicely the huge
effect a simple fan has.

Used this fan:

http://www.arctic.ac/en/p/equipment/peripherals/55/arctic-breeze-mobile.html?c=2185

intron

[qwk]

I get a reading of up to 30 C˚ on my thermometer.
Hottest spot on the Asic is about 51 C˚.

Alright, now I am REALLY interested in the values after you remove the original heatsink!

OMG, more than 70 C˚! Probably because i don't have anything to push the asic down onto my heatsink, it's just lying on top with maybe a tiny layer of air separating it from the sink. Guess I'll have to find some huge oversized clamps somewhere.

[CanaryInTheMine]

I like to overdo stuff:

ghetto as hell!!! I love it!! 

[Fiyasko]

I like to overdo stuff:

ghetto as hell!!! I love it!! 

AAAAAAAHA HAAAA HAA HAAA!, OHHH MANNNN THATS HILLARIOUS!, NICE JOB BUDDY!

[qwk]

There's actually two:



Edit: Always two there are, a master and an apprentice.