[MOD] Butterlflylabs 10GH/s bitcoin miner - change fan (in this black box).

[Meuh6879]

  Hello, everyone ... I have received (after 13 days), my black cube 10GH/s designed as a Butterflylabs bitcoin miner 10GH/s.

  But, after plug (and rebuild for europe) the supply ... this little black box emit a very (old) noise from the (very) cheap fan build on it.
Ok, they burn at 12GH/s ... but it's not the final goal for a 380 USD product.

  I can't use this like that.
I have multiples towers with choosed fans (noiseblocker, papst, noctua) that they emit 1/4 of noise than the butterflylabs product !

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So, this is a thread for "beginner buyer" to change the fan and "free" the bitcoin miner from the black cover (and allow more life on the regulate integrated stability voltage).

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Unbox the product

[1714836289]

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[1714836289]

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[1714836289]

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[Meuh6879]

Modify the US plug to an Europe plug. 

[Meuh6879]

Disassemble the black (and noisy) box. 

[Meuh6879]

Macro picture of the chip near to the alloy radiator (where is the caloduc ?  )

[Meuh6879]

Change the sandwich assembly 

[Meuh6879]

Add an EBMPAPST to test the air flow and temperature

[Meuh6879]

Finish ... OK, it's work good.

but a little noisy at 1900RPM - 23dB ... i have order an 1100RPM fan 92x92mm : Coolink SWiF2-920 (11dB)

[HellDiverUK]

You put your new fan on upside down. 

[Meuh6879]

Yes, it's because i don't want to flow hot air to the voltage regulator (condensator) ... because they "pop" easly (crystalised dielectric solution) after 2-4 years.  

So, the fan is flow hot air to the top.
It's not a problem, the allow radiator and card are the same size ... the radiator don't restricted the cold air from bottom.


The result (temp room = 25°C) :

[NecroBones]

Very nice, I may have to do the same thing when mine gets here. Thanks for sharing!

[miaviator]

Very Nice

You should also dump the thermal pad and put some Arctic Silver 5 over the ASIC chips.

[Meuh6879]

OK, it's a thermal pad only ? 
... so yes  when i will receive the low noise fan, i will dismount the radiator to change this. 

Thanks for your picture, it's clear !

[seriouscoin]

wow ppl still buy BFL ?

what a waste of time and money.

You should have just bought btc

[Meuh6879]

Coolink fan in place ... amazing, the bitcoin miner do no sound, now !  
I can let the bitcoin miner behind my LCD Screen with no noise emitted.
Perfect.  

[miaviator]

Those copper heatsinks are fairly cheap as well and help out (any asic) immensely on BFL equipment. 

http://amzn.com/B00637X42A

[Riley600]

I recently modded my Jalapeno with a Noctua A9x14 fan.  It's 100x quieter but runs a little warmer (up 4-5C, maybe).  I have the case put together again, so it's not running in the open air (I assume it would be cooler that way). 

So far, I'm pretty happy with the decrease in noise and I'm less worried about the fan exploding and damaging my heatsink (another miner posted pictures of this).

[miaviator]

I recently modded my Jalapeno with a Noctua A9x14 fan.  It's 100x quieter but runs a little warmer (up 4-5C, maybe).  I have the case put together again, so it's not running in the open air (I assume it would be cooler that way). 

So far, I'm pretty happy with the decrease in noise and I'm less worried about the fan exploding and damaging my heatsink (another miner posted pictures of this).

I can't think of any valid reason to ever run a BFL device inside the case or with the stock fans.  I'll take your BTC and burn it on paper wallets with no backups if you'd like though.