[GROUP BUY WORLDWIDE]BTMine v1 Miner 200GH/s BTC 2.4

[mtnminer]

BTmine China has sent me all my needed repair parts and have been very good to work with since the Chinese New Year ended.  I received two packages in the last two days with my promised parts.  I do not believe they ever expected to have the problems with the units that have occurred.  O believe the got into more than they could handle and rushed production and lacked international shipping experience.

Thank you Btmine for holding to what you promised me.

Mtnminer

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[grumpy619]

Nice at least someone stuck with them

[mchu168]

Is anybody interested in purchasing one or two of these for pickup in the SF Bay Area? I have each hooked up two 2 Corsair CX 750 PSU's and have been getting ~215GH on one and ~220 GH on the other clocked at 1500 for the last several weeks.   I pay a very high electricity rate (0.35/KW-hr) and therefore my returns are dwindling but these would offer much higher return to someone who has a lower electricity rate.  Pls PM me with reasonable offers.

[DZdragon]

Is anybody interested in purchasing one or two of these for pickup in the SF Bay Area? I have each hooked up two 2 Corsair CX 750 PSU's and have been getting ~215GH on one and ~220 GH on the other clocked at 1500 for the last several weeks.   I pay a very high electricity rate (0.35/KW-hr) and therefore my returns are dwindling but these would offer much higher return to someone who has a lower electricity rate.  Pls PM me with reasonable offers.

$0.35? or CNY 0.35?

[DZdragon]

hi, did anybody know what kind of fuse i need to repair?

What is the trouble with your miner?

[mtnminer]

I had no option but to stick with them, I purchased five machines and need them running to repay the investment!

Mtnminer

Nice at least someone stuck with them

[DZdragon]

I had no option but to stick with them, I purchased five machines and need them running to repay the investment!

Mtnminer

Hi,The hosting price of the miners in stock are listed here
https://bitcointalk.org/index.php?topic=488463.0
We provide support for services.
thank you

[mchu168]

Is anybody interested in purchasing one or two of these for pickup in the SF Bay Area? I have each hooked up two 2 Corsair CX 750 PSU's and have been getting ~215GH on one and ~220 GH on the other clocked at 1500 for the last several weeks.   I pay a very high electricity rate (0.35/KW-hr) and therefore my returns are dwindling but these would offer much higher return to someone who has a lower electricity rate.  Pls PM me with reasonable offers.

$0.35? or CNY 0.35?

$0.35.  This is the marginal rate but even my base rate of $0.14 is pretty high.

[Professoruss]

looks like one of my miners is having problems.

I power it on, it starts hashing just fine, fans work, etc.
At some point, the fans start running slower and slower until they show 0 rpm's and then heat rises.  And then temp cutoff.  Once it cools below, the fans kick back on and the whole process repeats itself.

Anyone know what to do about this?

[Professoruss]

does that end up having one less temp monitor on the display?

[mtnminer]

I have fixed one units fuse1 issues across the board and am running at 200 gh/s buy removing the fuse and soldering across the two pads making a direct short.  I have also cut all the blue and yellow fan wires on my units eliminating the PWM fan controls.  This has made the fans run full speed constantly increasing the noise, but eliminating all fan stoppage issues causing over heating and shutdown.

I am happy with these modifications, if I make more positive changes, I will share them too.

Mtnminer

[Webkikr]

We have two machines that we can't get running for one reason or another.

Here are the proofs: (I wrote Edtek on the proper paper and included a screen shot of my account here with my company email address)
http://imageshack.com/a/img59/4112/jixa.jpg
http://imageshack.com/a/img802/8839/qy1f.jpg
http://imageshack.com/a/img401/4496/djnz.jpg
http://imageshack.com/a/img196/9204/lk3t.jpg
http://imageshack.com/a/img811/7268/sj3a.jpg
http://imageshack.com/a/img838/1779/5463.jpg
http://imageshack.com/a/img191/4920/0oro.jpg
http://imageshack.com/a/img28/7155/m0vt.jpg
http://imageshack.com/a/img854/6484/pnp2.jpg
http://imageshack.com/a/img534/3440/dfsw.png

We have two full machines, 6 extra boards, 4 fans, 2 extra rainbow ribbons, and a bag of extra capacitors. Power supplies are included. We paid 2250USD each, looking for 1500USD each or reasonable offers.

As you can see in the pictures, we have several machines. It's just these two that won't work for whatever reason, and I'm tired of fiddling with them.

Any takers?

[greenbtc]

All of the sudden mine started to work at 150GH/s instead of 215GH/s or so. I tried flashing it to the newest firmware, but that didn't make any difference--anyone have any ideas on where to start troubleshooting with this thing? (it says ASIC count 10, it said the same before...). Is this company even still around?

[mtnminer]

I suspect you have had fuses blow. look at your api log for the lines that say
[match_work_count1] => 467992 or high numbers these are good
or
[match_work_count4] => 286  low numbers these are bad
[match_work_count7] => 0     0's are bad
this indicates blown fuses or dead asic chips.  Usually bad fuses

I have by passed most of mine and brought back full function and with upgraded power supplies the ability to over clock.

As for are BTmine China still in business, yes as of last week.  But they were looking at pulling out of the U.S. and European markets.  I have not heard if they are doing this or not for sure.

If you can not do the repairs yourself, I do have the equipment and offer repair services and possibly reworked replacement boards.

Mtnminer
Dennis Kerley

All of the sudden mine started to work at 150GH/s instead of 215GH/s or so. I tried flashing it to the newest firmware, but that didn't make any difference--anyone have any ideas on where to start troubleshooting with this thing? (it says ASIC count 10, it said the same before...). Is this company even still around?

[greenbtc]

I suspect you have had fuses blow. look at your api log for the lines that say
[match_work_count1] => 467992 or high numbers these are good
or
[match_work_count4] => 286  low numbers these are bad
[match_work_count7] => 0     0's are bad
this indicates blown fuses or dead asic chips.  Usually bad fuses

I have by passed most of mine and brought back full function and with upgraded power supplies the ability to over clock.

As for are BTmine China still in business, yes as of last week.  But they were looking at pulling out of the U.S. and European markets.  I have not heard if they are doing this or not for sure.

If you can not do the repairs yourself, I do have the equipment and offer repair services and possibly reworked replacement boards.

Mtnminer
Dennis Kerley

All of the sudden mine started to work at 150GH/s instead of 215GH/s or so. I tried flashing it to the newest firmware, but that didn't make any difference--anyone have any ideas on where to start troubleshooting with this thing? (it says ASIC count 10, it said the same before...). Is this company even still around?

[Device Hardware%] => 2.3773
   [no_matching_work] => 17554
   [match_work_count1] => 131407
   [match_work_count2] => 131307
   [match_work_count3] => 131434
   [match_work_count4] => 131516
   [match_work_count5] => 131529
   [match_work_count6] => 132482
   [match_work_count7] => 130981
   [match_work_count8] => 53
   [match_work_count9] => 131766
   [match_work_count10] => 131674
   [match_work_count11] => 131128
   [match_work_count12] => 131345
   [match_work_count13] => 31
   [match_work_count14] => 61
   [match_work_count15] => 51
   [match_work_count16] => 51




At least 5 have some low #s, is there a guide anywhere to replacing fuses or at least a link to where to get the right fuses? I'm fairly handy with a soldering iron

[mtnminer]

There are images here in this section of the forum around page 49, it is tiny work and really best to do this with a rework station as these are SMD (Surface mount device) and tiny.  I removed mine and soldered across the connection as replacement fuses are rated the same and prone to blowing with out reason.  I have had no issues and actually seen improved performance and will not have to strip these boards down and rework again soon.

If wish you good success, be careful with the temp of your soldering iron, smd's are in very close proximity and heat transfer is an issue.  You problems are on card 4 of the first blade and cards 3 and 4 of the second blade.  When I did the disassemble I reworked all the cards to avoid having to do it again in the future.

Mtnminer
Dennis Kerley

I suspect you have had fuses blow. look at your api log for the lines that say
[match_work_count1] => 467992 or high numbers these are good
or
[match_work_count4] => 286  low numbers these are bad
[match_work_count7] => 0     0's are bad
this indicates blown fuses or dead asic chips.  Usually bad fuses

I have by passed most of mine and brought back full function and with upgraded power supplies the ability to over clock.

As for are BTmine China still in business, yes as of last week.  But they were looking at pulling out of the U.S. and European markets.  I have not heard if they are doing this or not for sure.

If you can not do the repairs yourself, I do have the equipment and offer repair services and possibly reworked replacement boards.

Mtnminer
Dennis Kerley

All of the sudden mine started to work at 150GH/s instead of 215GH/s or so. I tried flashing it to the newest firmware, but that didn't make any difference--anyone have any ideas on where to start troubleshooting with this thing? (it says ASIC count 10, it said the same before...). Is this company even still around?

[Device Hardware%] => 2.3773
   [no_matching_work] => 17554
   [match_work_count1] => 131407
   [match_work_count2] => 131307
   [match_work_count3] => 131434
   [match_work_count4] => 131516
   [match_work_count5] => 131529
   [match_work_count6] => 132482
   [match_work_count7] => 130981
   [match_work_count8] => 53
   [match_work_count9] => 131766
   [match_work_count10] => 131674
   [match_work_count11] => 131128
   [match_work_count12] => 131345
   [match_work_count13] => 31
   [match_work_count14] => 61
   [match_work_count15] => 51
   [match_work_count16] => 51




At least 5 have some low #s, is there a guide anywhere to replacing fuses or at least a link to where to get the right fuses? I'm fairly handy with a soldering iron

[cannachris]

Hey my openwrt board died and after some messing around i now have it hooked up to my pc through usb and it's running fine except for one 20gh unit that is not hashing at all. What is the best way to get a replacement ethernet/wifi board from btmine? And how do I find out what is wrong with the module.

So have people actually melted their units or the stock psu's just by running on 1500 instead of 1400?

[cannachris]

btmine send me today dhl number (new tplink board)

I just skyped them and they said my order was too long ago, I have a broken tp-link board too. I received my miner the 23d of January so this is BS and i should just press them for the part, right?

[mtnminer]

I would push them, but your best option may to purchase one off ebay and flash it with the software.

Mtnminer

[c2391118]

My miner periodically hang-up. Sometimes it restores by itself, sometimes not. How to set scrypt or another thing to reboot it periodically, for example, every hour?