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Topic: Official BITMINE CoinCraft series 28nm ASIC miners thread - page 58. (Read 565240 times)

sr. member
Activity: 264
Merit: 250
Received 1TH CPP unit last thursday.

Now there's quite warm... ambient temp in the room 28C, with extra front fans all three 1TH desks run between 50-55C in "turbo light".
newbie
Activity: 70
Merit: 0
Finally I can speak without the fear of having an email from Fedex.

Sent my refund request via registered swiss mail for my second and last order at bitmine.

Ordered 2 1T coincraft desk in december, supposed to be shipped in february/march.

Never heard from bitmine after having wired more than 10'000$, no mail, nothing.
They didn't reply to my first refund request, but changed the status to cancelled on the website.
In Switzerland, you are supposed to respond in a 10 days delay to a registered mail.
Well I guess they are too busy producing 50 units a day...

After 60 days of waiting and adding 10 more "immaginary bitmine delay" days, I'm more than fed up with their lack of communication. or just the lies when they do rarely communicate.
Now That my last refund is sent, I will allow these liars 30 more days before going to the police station.
As i am a Swiss citizen and having a national bank account, there should be no limitation to wire both my refunds quickly.

I have no patience with this company anymore.
newbie
Activity: 42
Merit: 0
depends greatly on the environment. i got one miner in a hot room. i would say about 28°C it runs at 66°C, i got the other 2 in a cooler room, one of them about 55°C and the other one at 47°C (modified fans).

I copied your figures (875/860/4000) and I'm running a steady 1100 GH/s now consuming app 1200 Wh and running at app 55C in an 21C environment.

thanks for the info!
newbie
Activity: 8
Merit: 0

ID: 1156 
reseller 50btc.com


for bitmine.ch
5 days for shipping hardware, view tracking number! begin now, if no shipping please refund my money...
 thank's
newbie
Activity: 17
Merit: 0
What is the maximum hashrate of the full desk unit in turbo mode and what is the wattage of its power usage?  Thanks for advice in advance.

if you would mind reading 2 posts above. everything there...
/e running at 875/860mV/1300W/1108GH/s now. temperature dropped outside so miners are at 41°C and 46°C
hero member
Activity: 486
Merit: 500
BEWARE !

CHECK YOUR REFUND, IF YOU GOT ANY !
THEY REFUND YOU, IF THEY DO, FANTASY FIGURES !


Wtf does this mean?
member
Activity: 74
Merit: 10
Est. January 2012
What is the maximum hashrate of the full desk unit in turbo mode and what is the wattage of its power usage?  Thanks for advice in advance.
newbie
Activity: 17
Merit: 0
depends greatly on the environment. i got one miner in a hot room. i would say about 28°C it runs at 66°C, i got the other 2 in a cooler room, one of them about 55°C and the other one at 47°C (modified fans).
newbie
Activity: 42
Merit: 0
Ok, I got the cooling problems sorted out now for the Coincraft Desks, I'm using outside air both on the suction side as on the blowing side.  What mode for over-clocking are still available and what GH/s can be achieved then?

Can these be configured with parameters using the GUI Settings->Miner:

clock speed (default 800Mhz)
core voltage (default 850mV)
spi speed 8000Kbps)

or should I configure this in cgminer directly to work?

Currently the desks are running on an average of 1030 GH/s but I would like to get 20-30% more out of them now as long as I can keep the operating temperature under 60C.

I am running at 850 MHz, 860mV, 4000Kbps (I dont know what the spi speed means anyway. Couldnt find any improvements changing this. all other modes are at 4k only nominal is at 8k... doesnt seem legit to me). I am hashing at
1070 - 1080 GH/s at 1250W. Running at 900/880mV does improve to 1120 GH/s but drains 250W more power. I need that Voltage or HW increases till 5-8% there.
It wasnt possible for me to get a stable 1200 GH/s av yet.
Thanks for the info, what is the impact on the temperature measured by the sensors of these changes?
newbie
Activity: 17
Merit: 0
Ok, I got the cooling problems sorted out now for the Coincraft Desks, I'm using outside air both on the suction side as on the blowing side.  What mode for over-clocking are still available and what GH/s can be achieved then?

Can these be configured with parameters using the GUI Settings->Miner:

clock speed (default 800Mhz)
core voltage (default 850mV)
spi speed 8000Kbps)

or should I configure this in cgminer directly to work?

Currently the desks are running on an average of 1030 GH/s but I would like to get 20-30% more out of them now as long as I can keep the operating temperature under 60C.

I am running at 850 MHz, 860mV, 4000Kbps (I dont know what the spi speed means anyway. Couldnt find any improvements changing this. all other modes are at 4k only nominal is at 8k... doesnt seem legit to me). I am hashing at
1070 - 1080 GH/s at 1250W. Running at 900/880mV does improve to 1120 GH/s but drains 250W more power. I need that Voltage or HW increases till 5-8% there.
It wasnt possible for me to get a stable 1200 GH/s av yet.
newbie
Activity: 3
Merit: 0
      
They ignore the refund requests and just are making our rigs, or drinking a cocktail from our money Smiley
sr. member
Activity: 471
Merit: 250
BEWARE !

CHECK YOUR REFUND, IF YOU GOT ANY !
THEY REFUND YOU, IF THEY DO, FANTASY FIGURES !


Care to elaborate?
sr. member
Activity: 294
Merit: 250
BEWARE !

CHECK YOUR REFUND, IF YOU GOT ANY !
THEY REFUND YOU, IF THEY DO, FANTASY FIGURES !
sr. member
Activity: 430
Merit: 500
A typical bitmine behavior, two weeks ago, I request for refund and no response so far Angry

http://www.bitminerefund.com/
newbie
Activity: 3
Merit: 0
A typical bitmine behavior, two weeks ago, I request for refund and no response so far Angry
newbie
Activity: 42
Merit: 0
Ok, I got the cooling problems sorted out now for the Coincraft Desks, I'm using outside air both on the suction side as on the blowing side.  What mode for over-clocking are still available and what GH/s can be achieved then?

Can these be configured with parameters using the GUI Settings->Miner:

clock speed (default 800Mhz)
core voltage (default 850mV)
spi speed 8000Kbps)

or should I configure this in cgminer directly to work?

Currently the desks are running on an average of 1030 GH/s but I would like to get 20-30% more out of them now as long as I can keep the operating temperature under 60C.
sr. member
Activity: 281
Merit: 250
The Gold Standard of Digital Currency.
full member
Activity: 135
Merit: 100
"Also, if they get more optimistic about the future of their share they can relax and stop hoarding to buy time."

The way I see it, when they failed to deliver my refund within the 30 days stated in _their_ terms and conditions
they broke _their contract. They should not assume that just because the conversion rate between US dollars
and BTC has changed in their favour that I will accept fewer BTC than was due on that date.

They are still digging that hole and it keeps getting deeper.
newbie
Activity: 42
Merit: 0
Hey Bitmine.ch Team,

today we have updated some of our miners to your Firmware Version "20140425170710".
Afte the update the miners didt work anymore. They start mining after a reboot for about 10-25 seconds and after that
the Hashrate drops to 0...

Any solution?


Greetings
make a copy of the image of the not-updated miners and try if that solves your issues...
newbie
Activity: 31
Merit: 0
Hey Bitmine.ch Team,

today we have updated some of our miners to your Firmware Version "20140425170710".
Afte the update the miners didt work anymore. They start mining after a reboot for about 10-25 seconds and after that
the Hashrate drops to 0...

Any solution?


Greetings
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