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Topic: [GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s BTC 2.4 - page 22. (Read 97274 times)

sr. member
Activity: 486
Merit: 262
rm -rf stupidity
I don't have a picture of the actual module but I have one of them that is hashing at full power that never had one of the smaller 3.3V just not even installed.  Every other one has one but that one.  LOL!

Some of my boards have like a gritting looking surface around some of the places soldered.  Some of the half powered blades I want to say have this around the hash part of the hash panel that has the stuff.  It reminds me of when you leave like ducttape or any tape for way to long and the sticky part still is on the surface.  Should I look into this further or just normal no worry type deal?
member
Activity: 64
Merit: 10
To anyone that needs factory PSU's, I didn't order mine with any but they were included. I have some corsairs showing up tomorrow and would be willing to give away the stock ones.
newbie
Activity: 46
Merit: 0
Cap would be open circuit right not short.

Not if the capacitor was installed backwards. Which it was. More details to follow after I get the blade back online... IF I get it back online. Things are looking better now than a couple of hours ago at least.

Backwards?!?  Ouch, their QC doesn't seem to have worked for the Q or the C for the non-early orders. 

Reversed polarity. As bass ackwards as it gets.

After some tinkering, I finally got both blades up and hashing again.  Like I said before, I narrowed it down to a short between 12V and GND on one of the modules.  I temporarily removed the faulty module so I could run the good one while figuring out the problem.

At first I though it was due to the shitty soldering job:

http://i.imgur.com/3NYDjKE.png

But as it turns out it was actually due to the shitty soldering job.  Electrolytic capacitors don't like to be connected backwards, contrary to what BTMine thinks.  I'm honestly surprised it ran for as long as it did.  This picture was after I had removed the C1 since I was doing the process of elimination.

http://i.imgur.com/dsmEwfn.png

I snapped a picture of the other working module.  This is what it's supposed to look like:

http://i.imgur.com/GLxEWon.png

Both caps removed:

http://i.imgur.com/0V4gx4z.png

Have a look at the schematic for this board http://downloads.canaan-creative.com/hardware/A3256/avalon/2013-11-30/HASH_PANEL/PDF/hash_panel.pdf
C1 is decoupling the 3.3V rail, and C2 is decoupling the 12V rail, and I confirmed this with my multimeter on the working module. The old C2 was obviously fried, and I just so happened to have a spare 470uF capacitor on hand.  It's rated for 10V, not 16V, but that's okay, I just used it for C1.  It was a bitch to solder since the ground plane acts like a huge heatsink.


http://i.imgur.com/5af6CAm.png

If you're looking for replacement capacitors for yourself, you could use mouser as mtnminer suggested, or I personally like digikey.com.
sr. member
Activity: 546
Merit: 255
I used corsair tx850 PSU's, I had some 650's but they only put out 52amps so I didn't even try them. Been waiting on the tx850 PSU's, they just came in tonight, have to say the setup on this was super easy, 10 minutes after plugging it in I was mining. Just keeping my fingers crossed now.

are you going to OC?


Finally everything is running and I can stress less...
newbie
Activity: 21
Merit: 0
I used corsair tx850 PSU's, I had some 650's but they only put out 52amps so I didn't even try them. Been waiting on the tx850 PSU's, they just came in tonight, have to say the setup on this was super easy, 10 minutes after plugging it in I was mining. Just keeping my fingers crossed now.
sr. member
Activity: 546
Merit: 255
Hello everyone I would like to announce that I have finally gotten the damn thing running. Everything is finally working right. It was the power supply. Do not skimp get a quality one. The first thing I noticed was the weight of the PSU 750W with 62A single rail. Hashing away like a champ. Now to find more deals. And what is the command to get the fans to spin slower?
--avalon-fan 20 (or 95)

The settings are reversed for some, so 20 will run them at low settings and 95 will run them at low settings for others.

Thank you very much. So how hot can the miner be and still be efficient? The heat where the air blows in is cold but the back is warm to the touch. Is there a preferred operating temperature?
full member
Activity: 205
Merit: 100
Hello everyone I would like to announce that I have finally gotten the damn thing running. Everything is finally working right. It was the power supply. Do not skimp get a quality one. The first thing I noticed was the weight of the PSU 750W with 62A single rail. Hashing away like a champ. Now to find more deals. And what is the command to get the fans to spin slower?
--avalon-fan 20 (or 95)

The settings are reversed for some, so 20 will run them at low settings and 95 will run them at low settings for others.
sr. member
Activity: 1316
Merit: 254
Sugars.zone | DatingFi - Earn for Posting
I really don't get this machine. All I did was keep reconnecting the lan interface until finally the pings came back under .0xxxx. Is it that the network card they used is a cheap piece of crap? Can I change this part out to a better one? If so, any recommendations? Also, can anyone verify that the cat3 cable I installed by mistake will not work? The rig connects to my network on it and I can connect to it. After moving my rig back on a known working cat5e line it still had high latency issues when ping openwrt, until eventually working after reconnect to lan several times.

Edit: According to google cat3 is good for 10Mbps. I only have 6Mbps on this crappy att dsl. So theoretically the cat3 I have should work for this application just fine? Maybe if I would've just kept hitting reconnect it would've worked on that line as well?

have you tried a laptop or pi on the end of the cat 3 and pinged ur router to compare. that should give a hint to what is going on.

I just moved rentals and brought  some tplink powerline adapters  Angry I am having similar problems with my pi's , waiting for network cable to be delivered now..

DO NOT use powerline adapters for mining. They work fine for weeks then go screwy at random.<< probably when the misses uses the washing machine  Grin
newbie
Activity: 27
Merit: 0
I really don't get this machine. All I did was keep reconnecting the lan interface until finally the pings came back under .0xxxx. Is it that the network card they used is a cheap piece of crap? Can I change this part out to a better one? If so, any recommendations? Also, can anyone verify that the cat3 cable I installed by mistake will not work? The rig connects to my network on it and I can connect to it. After moving my rig back on a known working cat5e line it still had high latency issues when ping openwrt, until eventually working after reconnect to lan several times.

Edit: According to google cat3 is good for 10Mbps. I only have 6Mbps on this crappy att dsl. So theoretically the cat3 I have should work for this application just fine? Maybe if I would've just kept hitting reconnect it would've worked on that line as well?

Length of the cable will cause performance to degrade significantly. You may need a repeater or extender for the Ethernet in order to boost the signal through that length.
hero member
Activity: 994
Merit: 500
I really don't get this machine. All I did was keep reconnecting the lan interface until finally the pings came back under .0xxxx. Is it that the network card they used is a cheap piece of crap? Can I change this part out to a better one? If so, any recommendations? Also, can anyone verify that the cat3 cable I installed by mistake will not work? The rig connects to my network on it and I can connect to it. After moving my rig back on a known working cat5e line it still had high latency issues when ping openwrt, until eventually working after reconnect to lan several times.

Edit: According to google cat3 is good for 10Mbps. I only have 6Mbps on this crappy att dsl. So theoretically the cat3 I have should work for this application just fine? Maybe if I would've just kept hitting reconnect it would've worked on that line as well?
sr. member
Activity: 546
Merit: 255
Hello everyone I would like to announce that I have finally gotten the damn thing running. Everything is finally working right. It was the power supply. Do not skimp get a quality one. The first thing I noticed was the weight of the PSU 750W with 62A single rail. Hashing away like a champ. Now to find more deals. And what is the command to get the fans to spin slower?
hero member
Activity: 994
Merit: 500
Other than the non twisted pairs, the cat5e and cat3 cables look exactly the same and fit in the jacks exactly the same. I assume the cat3 is a part of the problem, though now that I've put it back on the ethernet cable that was working I am still having the same issues. So who knows.

Edit: Yea, I have no idea why they weren't twisted. They were both the same price.
sr. member
Activity: 1316
Merit: 254
Sugars.zone | DatingFi - Earn for Posting
This sucks, Home Depot sucks, I suck! I just checked a piece of the cable that I have in the garage and it says cat 3! I didn't double check when I bought it, I just grabbed the first two off of the shelf. Now I have to run a whole new line! LAME!
I guess the problem cable is the untwisted ? and cat 3 ?

just interested

edit : from memory even the cheapest telephone cable is twisted pair
sr. member
Activity: 504
Merit: 250
This sucks, Home Depot sucks, I suck! I just checked a piece of the cable that I have in the garage and it says cat 3! I didn't double check when I bought it, I just grabbed the first two off of the shelf. Now I have to run a whole new line! LAME!

Ouch.
Still thats bit funny  Grin doing good job and seeing parts used didnt fit haha
newbie
Activity: 21
Merit: 0
Just got mine up and running. Hashing away around 220gh/s. I have a couple of my psu wires touching the components on the top blade. Will probably try to zip tie them so they are not touching, not sure that it matters. Other than that seems good. Hopefully it will stay working.
hero member
Activity: 994
Merit: 500
This sucks, Home Depot sucks, I suck! I just checked a piece of the cable that I have in the garage and it says cat 3! I didn't double check when I bought it, I just grabbed the first two off of the shelf. Now I have to run a whole new line! LAME!
hero member
Activity: 994
Merit: 500
Maybe 80'. That could be it, the other ethernet jack I installed is a lot less and it runs fine on it.

It could also be the cable itself. I bought 2x 100' cheap spools of it from home depot. When I got home I noticed that they where a little different, one is gray the other light brown. One of them had the pairs twisted the other did not.

Idk though, cuz here is my ping of google.com

Code:
PING google.com (74.125.239.97): 56 data bytes
64 bytes from 74.125.239.97: seq=0 ttl=54 time=17.938 ms
64 bytes from 74.125.239.97: seq=1 ttl=54 time=15.362 ms
64 bytes from 74.125.239.97: seq=2 ttl=54 time=15.599 ms
64 bytes from 74.125.239.97: seq=3 ttl=54 time=15.741 ms
64 bytes from 74.125.239.97: seq=4 ttl=54 time=15.485 ms

--- google.com ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 15.362/16.025/17.938 ms
newbie
Activity: 27
Merit: 0
I'm having problems running my rig on the ethernet port I installed in my garage. It works fine with the one I installed in my house. I think it might be a latency issue. I can ping openwrt.org from it. This is what it does over and over.
Code:
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 204.2.134.163: reach 0x01 offset -15.189010 delay 30.399506 status 0x24 strat 3 refid 0xcc0286a2 rootdelay 0.005325
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 192.210.206.5: reach 0x01 offset -15.027693 delay 30.135224 status 0x24 strat 2 refid 0x84a30467 rootdelay 0.024186
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 128.184.34.53: reach 0x01 offset -7.427351 delay 15.043867 status 0x24 strat 3 refid 0xa9fe0001 rootdelay 0.012009
Code:
PING openwrt.org (78.24.191.177): 56 data bytes
64 bytes from 78.24.191.177: seq=0 ttl=43 time=206.437 ms
64 bytes from 78.24.191.177: seq=1 ttl=43 time=202.391 ms
64 bytes from 78.24.191.177: seq=2 ttl=43 time=202.665 ms
64 bytes from 78.24.191.177: seq=3 ttl=43 time=201.731 ms
64 bytes from 78.24.191.177: seq=4 ttl=43 time=204.044 ms

--- openwrt.org ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 201.731/203.453/206.437 ms

How long is the Ethernet cable ? the MS on that thing is pretty high.
hero member
Activity: 994
Merit: 500
I'm having problems running my rig on the ethernet port I installed in my garage. It works fine with the one I installed in my house. I think it might be a latency issue. I can ping openwrt.org from it. This is what it does over and over.
Code:
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 204.2.134.163: reach 0x01 offset -15.189010 delay 30.399506 status 0x24 strat 3 refid 0xcc0286a2 rootdelay 0.005325
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 192.210.206.5: reach 0x01 offset -15.027693 delay 30.135224 status 0x24 strat 2 refid 0x84a30467 rootdelay 0.024186
Fri Jan 24 00:57:26 2014 daemon.info sysinit: ntpd: reply from 128.184.34.53: reach 0x01 offset -7.427351 delay 15.043867 status 0x24 strat 3 refid 0xa9fe0001 rootdelay 0.012009
Code:
PING openwrt.org (78.24.191.177): 56 data bytes
64 bytes from 78.24.191.177: seq=0 ttl=43 time=206.437 ms
64 bytes from 78.24.191.177: seq=1 ttl=43 time=202.391 ms
64 bytes from 78.24.191.177: seq=2 ttl=43 time=202.665 ms
64 bytes from 78.24.191.177: seq=3 ttl=43 time=201.731 ms
64 bytes from 78.24.191.177: seq=4 ttl=43 time=204.044 ms

--- openwrt.org ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 201.731/203.453/206.437 ms
sr. member
Activity: 294
Merit: 250
Actually wrapping the blades in bubble wrap and shipping them uninstalled would not have prevented all the problems!  Bubble wrap does not prevent blown fuses, capacitors soldered on in reverse, cables putting pressure on components causing them to break off or poor solder work!  The blades coming loose in shipping is only part of the problems!

I agree with your statement, but it was very short sighted and not thought through before being written!

mtnminer

I am not trying to excuse BTmine, but I have noticed looking at this forum and others that have Chinese eruptor cubes for sale used, there is a fairly high rate of module failure out of the box new is common!  

So, that leaves us the consumers with facts to consider, Butterfly Labs is slower than molasses flowing up hill in winter, but the units I own from the have worked flawlessly.  So if we want Chinese delivery speed, we will have to deal with Chinese quality issues.

I wish we could have both quality and speed of delivery, but these do not seem to coexist often in the ASIC's world.  As a former RF Engineer I will take the speed of delivery, the best quality I can buy and do some fine tuning and tweaking of the units I purchase.  I will still be ahead of waiting for a January order with a March delivery date if I am lucky.

Mtnminer

They have no excuse!! all they had to do was wrap the boards in anti static bubble wrap and tape it to the chassis. Just doing that would of prevented all the problems that we are having. Who in there right mind would just leave unscrewed delicate components to free float inside a metal box with pointy fan screws to fly across the pacific ocean in a bumpy ride.

I contacted them about my defective boards and provided pictures of the unboxing and damages. They want me to spend money on shipping which was estimated this morning at $120 to ship them back the defective blades for repair and wait to who knows how many days or weeks to get them back.
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