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Topic: [GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s BTC 2.4 - page 41. (Read 97274 times)

full member
Activity: 126
Merit: 100
My full BTC refund of 2.4 also just came through.

I do not doubt that this outfit had the best of intentions getting in.
For now, I will bide my time for new opportunities
sr. member
Activity: 504
Merit: 250
Just got my 2.4 BTC refund.

At least they eventually kept their word. Shame I could not get what I wanted.

Anyone know of any reliable  deals going on ?

Honestly at the moment they were the best deal. All of china is going to start selling these machines in a couple of weeks.

+1 next months market is flooded with these Avalon chip machines and difficulty will get another 10 days +30% 10days + 30% bumbs.

This was the best deal after Bitmain Antminer S1. I like that i can get more GH/s out of this ignoring the electricity. Every seller has stock issues because this stuff sells, all they can produce. Antminer maybe gets more stock every week but i cant see any deal that would reliably ship next week before CNY holidays. During holidays whole China will shut down and 1billion people will move places to go home see the family. it's biggest human movement in the world. So for next 3 weeks it's hard to get any Chinamade ASIC from order to in-hands.

I also like this unit because it's in neat case. I've tried to order more of these but they didnt take my orders. I got several units in DHL hands now. Monday will be setup day Smiley

Special thanks to twib2 and FarmerOak for studying the board. I have bypassed some 2amps fuses in my 13port USB hubs that run Antminer U1 sticks. Seems so i will be doing same stuff for these boards when they arrive. My initial plan was to hook them up with dual 1200w psus with 100A single rail. Maybe 1 PSU could handle the stock speed but it's never good to run psu at 100% capacity 24/7. That being said maybe these stock psus cant handle eaven stock speed for longer timers, we will see.

PSU i'm gonna try.
http://www.fspgroupusa.com/aurum-pro-gold-1200-au1200pro/p/881.html
http://www.hardocp.com/article/2012/04/18/fsp_aurum_pro_gold_1200_power_supply_review/4#.UtupX7Q8LRY


sr. member
Activity: 546
Merit: 255
Just got my 2.4 BTC refund.

At least they eventually kept their word. Shame I could not get what I wanted.

Anyone know of any reliable  deals going on ?

Honestly at the moment they were the best deal. All of china is going to start selling these machines in a couple of weeks.
sr. member
Activity: 294
Merit: 250
тσ ¢σιи σя иσт тσ ¢σιи?
Just got my 2.4 BTC refund.

At least they eventually kept their word. Shame I could not get what I wanted.

Anyone know of any reliable  deals going on ?
full member
Activity: 184
Merit: 100
Holy Cow!  I drive to Tahoe and by the time I arrive you guys have found the fix to my rig!!!  Awesome.

Now if I could just find somebody who can solder - it's been 20 years since my circuits class...  maybe I can watch some YouTube videos and get some tips.

This is the best forum on the Internet, bar none!!!!


Yeah, no kidding,  what a bunch of resourceful hackers!
sr. member
Activity: 280
Merit: 250
Helperizer
Could someone post the dimension of the fuse, or what SMD package they used?  Also do they have any number printed on them to help identify what they are?  I ordered a few of these miners so I might as well order some spare fuses. 

Thanks for digging into that problem.  Hopefully the ones I get will be OK but better to be prepared.

I just put the bag of them away.  The only marking they have on them is "8 0" and they're small black SMD components.  At a guess, I'd say they were about 1/8 inch or maybe 3mm.  I can measure them tomorrow if you like.  If you can help figure out which ones to order, that'd be great - though I'd want one a bit more stout.
member
Activity: 64
Merit: 10
It is Sunday there now. Once the package gets to DHL it only takes one night to get to LA then customs has to inspect it. From DHL it goes real fast.

That's what I was thinking. I'm hoping Tuesday delivery, but I'm assuming Wednesday due to the holiday.
full member
Activity: 188
Merit: 100
Holy Cow!  I drive to Tahoe and by the time I arrive you guys have found the fix to my rig!!!  Awesome.

Now if I could just find somebody who can solder - it's been 20 years since my circuits class...  maybe I can watch some YouTube videos and get some tips.

This is the best forum on the Internet, bar none!!!!
sr. member
Activity: 546
Merit: 255
It is Sunday there now. Once the package gets to DHL it only takes one night to get to LA then customs has to inspect it. From DHL it goes real fast.
member
Activity: 64
Merit: 10
I talked to jenny via Skype around midnight pst Friday night. Got my tracking number for my 1/8 order around 5am. Only shows shipping info received.
member
Activity: 98
Merit: 10
It's the weekend. They're not working
full member
Activity: 210
Merit: 100
I do not have tracking for my 2 orders yet as well.

Bob what date do they have you listed?

1/9

Has anyone had any luck contacting these guys at all in the past 24 hours?
member
Activity: 100
Merit: 10
Could someone post the dimension of the fuse, or what SMD package they used?  Also do they have any number printed on them to help identify what they are?  I ordered a few of these miners so I might as well order some spare fuses. 

Thanks for digging into that problem.  Hopefully the ones I get will be OK but better to be prepared.
sr. member
Activity: 280
Merit: 250
Helperizer
That'd be cool.  From what I could tell, you just need one tplink w/ avalon image from ckolvas or the avalon wiki (or RPi + cgminer/bfgminer I suppose), 8 dual-module Avalon v2 cards,  2 backplanes, a control unit, a power input board, 2 heatsinks w/ thermal pads, and that's about it.

If you do get a line on DIY makings, please keep us in the loop - now that I've "layed on hands" for this, I'd feel comfortable putting them together from module-parts (just not component level, lol).

BTW, it's way, way easier to hook up the cables if you take out the top blade first (only has two connections, BUT be careful removing the ribbon cable and putting it back on!).
sr. member
Activity: 546
Merit: 255
Good to know. What I want to know is who is daring enough to go and over clock what they have? I would but I have no knowledge of this.

I did, and ran just fine for a day, and then these surface mounted fuses on each module started to blow.  ;-)  But I only went to 1500 MHz.  I'll probably go there again, but for now I'll rest and enjoy my workaround/repair.

Still not sure why they fused them so tightly - some have lost modules (presumably) to the too-easy-to-blow fuses even at the stock 1400 MHz.  These are labeled "8 0" but I'm not sure what that means.  I lost a total of 8 of the 14 I had, some of them at 1400 even.  2 modules did not have fuses - presumably and older iteration even though the boards were labeled the same; but some had fuses and 2 capacitors where others had just two capacitors slightly moved.

Just for information purposes, to overclock these, just change 1400 in your Cgminer configuration to something like 1500 (which BTW I understand is stock for these chips, even though it's not stock for these BTMine units).  I heard that someone was running them at 1600, but I'm not sure if I'll be going there.

Good to know I can't wait till I get mine in. I wanna see the build on the product. Looking at the factory they had in the pics I'm wondering if they were hand soldering them. Maybe us bitching about shipment made them rush to produce. I would love to put one of these together i bet the prices are dirt cheap. I guess its time to call my buddy that does business in china. Other then that If the blades can run on a Raspberry Pi I wonder why they don't just sell them that way like the ASICminer blades. This would be a great DIY so the amount of BTC you mine will be based on your how many blades you make by hand. Other then that thanks for the heads up.
full member
Activity: 231
Merit: 100
Got both of my modules back up! Removed the fuses and dropped a glob of solder between the leads. Hashing away happy now. I will NOT be going back to 1500, and am staying at 1300 for a bit. I'll keep it at 1400 max until someone comes up with a work around (I'm thinking bigger fuses, but that could get dangerous too). Thanks again twib2
sr. member
Activity: 280
Merit: 250
Helperizer
Good to know. What I want to know is who is daring enough to go and over clock what they have? I would but I have no knowledge of this.

I did, and ran just fine for a day, and then these surface mounted fuses on each module started to blow.  ;-)  But I only went to 1500 MHz.  I'll probably go there again, but for now I'll rest and enjoy my workaround/repair.

Still not sure why they fused them so tightly - some have lost modules (presumably) to the too-easy-to-blow fuses even at the stock 1400 MHz.  These are labeled "8 0" but I'm not sure what that means.  I lost a total of 8 of the 14 I had, some of them at 1400 even.  2 modules did not have fuses - presumably and older iteration even though the boards were labeled the same; but some had fuses and 2 capacitors where others had just two capacitors slightly moved.

Just for information purposes, to overclock these, just change 1400 in your Cgminer configuration to something like 1500 (which BTW I understand is stock for these chips, even though it's not stock for these BTMine units).  I heard that someone was running them at 1600, but I'm not sure if I'll be going there.
sr. member
Activity: 546
Merit: 255
Good to know. What I want to know is who is daring enough to go and over clock what they have? I would but I have no knowledge of this.
sr. member
Activity: 280
Merit: 250
Helperizer
GREAT NEWS man! I'm having trouble desoldering the fuse because my good soldering iron just broke, and my backup sucks Sad

I used a hot air station for the desoldering, then soldering iron to add solder and then single strand of aluminum wire for the bridge.

Got 'em all back hashing again!  Right now at 219 GH/s and my API show them all working at comparable speeds:

Code:
   [match_work_count1] => 539
   [match_work_count2] => 586
   [match_work_count3] => 590
   [match_work_count4] => 559
   [match_work_count5] => 611
   [match_work_count6] => 572
   [match_work_count7] => 556
   [match_work_count8] => 556
   [match_work_count9] => 622
   [match_work_count10] => 590
   [match_work_count11] => 553
   [match_work_count12] => 567
   [match_work_count13] => 560
   [match_work_count14] => 584
   [match_work_count15] => 568
   [match_work_count16] => 581

Now to put everything back together and get it back on the shelf where it belongs.

I'm a happy camper!  Hope yours goes as smoothly!

And for some reason, I'm back to liking these things.  ;-)
full member
Activity: 231
Merit: 100
GREAT NEWS man! I'm having trouble desoldering the fuse because my good soldering iron just broke, and my backup sucks Sad
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