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Author Topic: Pictures of your mining rigs!  (Read 1805405 times)
Jay_Pal
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July 12, 2013, 07:53:06 PM
 #2661

what did you use to build the rack? I was considering legos, but i like yours. I'd just want to add clearance for my fans.
K'nex... I've been building with them since I was 8 Smiley.  Much better for structures than legos.
Blasphemy! Lego4Life!  Cool Wink Tongue

Rigs are hotter with Legos.

and legos are hotter with rigs

And K'nex are always awesome:
http://geekalabama.files.wordpress.com/2011/11/74.jpg

No, that is not my build/house, but I have built a few k'nex roller coasters.





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notme
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July 12, 2013, 08:00:51 PM
 #2662


I need a 3D printer yesterday.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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Trongersoll
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July 12, 2013, 08:04:08 PM
 #2663

What did i start?
Jay_Pal
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July 12, 2013, 08:23:30 PM
 #2664

So do I!!!!  Cry

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crazyates
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July 12, 2013, 08:32:03 PM
 #2665

And K'nex are always awesome:


You really wanna go there? Hint: Lego is always bigger and better.

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ASIC-K
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Hell?


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July 12, 2013, 08:43:39 PM
 #2666

here is my little rig. used to have a 7970 in here but i sold it. downgraded to a 6850, lol

notme
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July 12, 2013, 08:45:10 PM
 #2667


You're really going to argue using a 8 inch model of an X wing?

For anything with motion, K'nex wins.  For anything structural, K'nex wins.  I'll give the detailed modeling to Lego, but it is only because they make custom parts for each model.

Besides, if you want to show Lego is bigger and better you need something like this:


Edit: Oh shit, those are people.  I withdraw my first sentence, but once again custom parts for each model Tongue.

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Cablez
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July 13, 2013, 12:36:52 AM
 #2668

Until k'nex can do this they can go suck it:

Tired of substandard power distribution in your ASIC setup???   Chris' Custom Cablez will get you sorted out right!  No job too hard so PM me for a quote
Check my products or ask a question here: https://bitcointalk.org/index.php?topic=74397.0
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July 13, 2013, 02:43:05 AM
Last edit: July 13, 2013, 02:54:05 AM by notme
 #2669

Until k'nex can do this they can go suck it:
https://farm9.staticflickr.com/8434/7717708760_365a1c0df8_c.jpg

Again, k'nex aren't for modeling.

https://www.bitcoin.org/bitcoin.pdf
While no idea is perfect, some ideas are useful.
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crazyates
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July 13, 2013, 02:47:22 AM
 #2670

Until k'nex can do this they can go suck it:


Mmmmmm.... Yes....

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July 13, 2013, 02:48:37 AM
 #2671

Again, k'nex aren't for modeling.
Alright, lets set aside our differences and move on. We've highjacked this thread enough. Whatever works in the end, I guess, and both can do in a pinch.

Who's got some more pics of their rigs?

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Beastlymac
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July 13, 2013, 02:52:40 AM
 #2672

here is my little rig. used to have a 7970 in here but i sold it. downgraded to a 6850, lol


Nice clean setup. When did you get your jalapeño?

Message me if you have any problems
ASIC-K
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July 13, 2013, 03:22:28 AM
 #2673

thanks! its a new rig, haswell, watercooled etc. its actually at my office so free electricity! lol. and its always cold in there, so temps stay nice and low.

i got my jalepeno just a couple days ago actually. it runs great actually, stays at around 31 degrees.
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July 13, 2013, 04:15:19 AM
 #2674

Again, k'nex aren't for modeling.
Alright, lets set aside our differences and move on. We've highjacked this thread enough. Whatever works in the end, I guess, and both can do in a pinch.

Who's got some more pics of their rigs?

thanks .... this is about rig porn not lego's vs kiinex

P.S Legos rule ..lolz

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Trillium
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July 13, 2013, 04:52:42 AM
 #2675


Nothing rare, but my two little USB erupters arrived today. Set them up on a shelf above my desk with a D-Link DUB-H7 7 port hub I got for $23. I quickly realised that they were reaching 70+ deg C temps when I was setting them up and the 2x 15 watt server fans really help (but they are running at 3.3 volts so they are essentially silent). Miners now get better temps of about 45 deg C (25 deg C ambient) after running for a while. Getting <1% hardware errors in bfgminer I might have to look at that later.

Is there any components on the other side of the PCB? Or is the aluminium heatsink removing heat through the PCB itself? Some micro-sized heatsinks might be in order for the ASIC chip on the top side in any case...

You realize your fans are easily using 6 times (or more) as much power as the USB miners themselves? Those fans are also noisy as FUCK. You can be fine with just a gentle breeze. The USB miners actually don't need any cooling at all. The manufacturer has tested them with zero airflow and even removed the heatsinks (the chunk of metal with the BTC symbol on it) and they still ran just fine with no increase in HW errors.

If you really feel you need to run fans, get something slow and quiet. Something that uses very low power. A 240mm fan that only draws 0.8 amps @ 12v will cool 50 usb miners without a problem.

As I said they are 12 volt fans running at 3.3 volts. At 3.3 volts they use 0.145 amps each (measured with DMM) = 0.48 watts each. So actually the two miners use about 5x more power than both fans. And as I said they are silent at 3.3 volts.

Also the average longevity of the ASIC at ~45 deg C is going to be much better than some at 70+ deg C. Sure the manufacturer tested them but they didn't test them for months continuously nor would they have conducted a long term study of their failure rates vs temp. Given that these miners will probably never pay for themselves (even if they last for years) it makes sense to operate them at lower temps to try and maximize their working life. Also if the ASIC and other components are heating up the entire circuit board (especially with the assistance of the heat spreading 'heatsink' on the bottom of the PCB) while there is no airflow then the other components will also reach unfavorable temps...

https://i.imgur.com/QnaIvC7.jpg

AOZ1020 - Maximum ambient temperature 85 deg C
CP2102 Maximum operating temperature 85 deg C
ATtiny2313 - Absolute maximum operating temperature 125 deg C
74HC574 - Maximum operating temperature 125 deg C

It's not surprising that some of those components could reach the temps above if they are sitting on a PCB thats over 70 deg C, especially the voltage reg which would have to dissipate quite a bit of heat. Also as the spec sheets make clear, many of those devices become unstable at higher temps, often well before their rated limits.


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Jay_Pal
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July 13, 2013, 10:16:54 AM
 #2676


Nothing rare, but my two little USB erupters arrived today. Set them up on a shelf above my desk with a D-Link DUB-H7 7 port hub I got for $23. I quickly realised that they were reaching 70+ deg C temps when I was setting them up and the 2x 15 watt server fans really help (but they are running at 3.3 volts so they are essentially silent). Miners now get better temps of about 45 deg C (25 deg C ambient) after running for a while. Getting <1% hardware errors in bfgminer I might have to look at that later.

Is there any components on the other side of the PCB? Or is the aluminium heatsink removing heat through the PCB itself? Some micro-sized heatsinks might be in order for the ASIC chip on the top side in any case...

You realize your fans are easily using 6 times (or more) as much power as the USB miners themselves? Those fans are also noisy as FUCK. You can be fine with just a gentle breeze. The USB miners actually don't need any cooling at all. The manufacturer has tested them with zero airflow and even removed the heatsinks (the chunk of metal with the BTC symbol on it) and they still ran just fine with no increase in HW errors.

If you really feel you need to run fans, get something slow and quiet. Something that uses very low power. A 240mm fan that only draws 0.8 amps @ 12v will cool 50 usb miners without a problem.

As I said they are 12 volt fans running at 3.3 volts. At 3.3 volts they use 0.145 amps each (measured with DMM) = 0.48 watts each. So actually the two miners use about 5x more power than both fans. And as I said they are silent at 3.3 volts.

Also the average longevity of the ASIC at ~45 deg C is going to be much better than some at 70+ deg C. Sure the manufacturer tested them but they didn't test them for months continuously nor would they have conducted a long term study of their failure rates vs temp. Given that these miners will probably never pay for themselves (even if they last for years) it makes sense to operate them at lower temps to try and maximize their working life. Also if the ASIC and other components are heating up the entire circuit board (especially with the assistance of the heat spreading 'heatsink' on the bottom of the PCB) while there is no airflow then the other components will also reach unfavorable temps...

https://i.imgur.com/QnaIvC7.jpg

AOZ1020 - Maximum ambient temperature 85 deg C
CP2102 Maximum operating temperature 85 deg C
ATtiny2313 - Absolute maximum operating temperature 125 deg C
74HC574 - Maximum operating temperature 125 deg C

It's not surprising that some of those components could reach the temps above if they are sitting on a PCB thats over 70 deg C, especially the voltage reg which would have to dissipate quite a bit of heat. Also as the spec sheets make clear, many of those devices become unstable at higher temps, often well before their rated limits.



Totally right.

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July 14, 2013, 12:39:31 PM
 #2677

Tasty PiMiner Sandwich Recipe:

    • 1 USB Hub
    • 1 Raspberry Pi
    • 1 LCD+Keypad Kit
    • 4 Block Erupter USBs

Best served chilled …

http://learn.adafruit.com/system/assets/assets/000/009/191/large1024/bcminer1_1200.jpg?1371839662

Discussion thread here: https://bitcointalk.org/index.php?topic=241504.0

Instructions for building your own here: http://learn.adafruit.com/piminer-raspberry-pi-bitcoin-miner/initial-setup-and-assembly

Very nice!
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July 14, 2013, 12:46:49 PM
 #2678

Mac mining for noobs with a USB Eruptor and Bitminter... We'll make that shit back in... a year?

https://imageshack.com/a/img593/4114/yvko.jpg

A year is about right, with perhaps (probably?) a diminishing ROI afterwards. I'm running a similar setup, but with two USB miners plugged into a powered hub. I get right around 670-671 Mhs, but I'd love to be able to get up to 1 Ghs. I don't know why, it's not like it'll ever be profitable at this low level. A BFL Jalapeño would be great, but who wants to wait months and months and months?
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July 14, 2013, 07:59:49 PM
 #2679

any profit you make mining on the usb miner will be lost in electricity from mining on your geforce.

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July 14, 2013, 11:13:08 PM
 #2680

I have 9 Japs to testify.

Is interesting that so far I've seen several posts (including yours) arguing about both methods (fan blowing down VS fan blowing up) and claiming that the opposite method is the wrong one.
I remember this one for example: https://bitcointalk.org/index.php?topic=221413.msg2335576#msg2335576

I think is safe to say that BFL done their fair share of tests with both methods and decided to go with the best one.

I might test it myself, but I don't really want to stop them hashing right now, and besides, they are all below 40C with the case on.

Eventually I tested both ways (on the same unit), with the fan inside the case blowing up/down.

Blowing down = 43C.
Blowing up (as they are shipped by BFL) = 39C.

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