CoinTerra

 

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CoinTerra designs and produces best-in-class Bitcoin mining ASIC processors and systems. Our state-of-the-art design methodologies and advanced architectures enable us to deliver Bitcoin mining solutions with the highest performance ASICs for the lowest power and die area. We are proud to lead the retail bitcoin mining market with our new GoldStrike1™ ASIC and our 2TH/s TerraMiner™ IV Bitcoin mining rigs – both representing the highest performance Bitcoin mining hardware that are currently announced.

 

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Cointerra customer-  Cointerra Terraminer Review by: Mark 4/17/2014

I am a retired IBM employee who specialized in hardware and software testing while at IBM. I purchased 2 of Cointerra’s Terraminer 4s. I have thoroughly tested them and found this hardware to be completely unsatisfactory. I strongly do not recommend buying one of these devices. If you do you will be sorry. The reasons why this is a bad investment is as follows. They failed to deliver the pre-orders in a timely manner. You will lose thousands just waiting for the machines to arrive. They will be months later than promised. They under perform in every way that is important. They promise to deliver a 2 TH machine. The Terraminer 4 cannot be made to go any faster than 1.6 Ths. Believe me when I tell you I have tried. The max speed is 1.6ths which will leave you 400 ghs short. Over time that will cost you loses in the thousands of dollars. They use nearly double the power that they should use. Each Terraminer uses nearly 2000 watts per machine. This problem will cause you much hardship. This much power usage can’t be run reliably in most homes as it will cause the circuit breakers to trip. I had to rewire my workroom to accommodate the extraordinary power consumption. Obviously your power bill will sky rocket when running these machines. The Terraminer 4 are also very sensitive to temperature as well. If the air temperature in the room goes over 77 degrees Fahrenheit the hashing rate drops dramatically sometimes going below 1 ths. What this means to you is that you will have to supply additional air conditioning to keep the temperature below 77 degrees. I am running 2 air conditioners that use about 2800 watts of additional electricity. Needless to say my power bill is staggering because of the inferior design of their hardware. The ac and the 2 Terraminers use approximately 24 dollars a day of power. This cuts very deeply into your profits. The Terraminer 4s also are extremely loud. If you are married there is no way that your wife will let you run these things in your house.In summation these machines will cost you thousands just to operate. You will spend most of your time monitoring the air conditioning and restarting the miners when they malfunction due to slight over temperature. These machines are garbage avoid them at all cost.To be completely honest these guys should do one of the following things. They should provide replacement hardware that makes their machines use half the power and run at 2 THs which is what they promised in the first place.. Provide a partial refund at least half the price of the machine. Supply an additional properly working device to make up for the loss of hashing power because of severe under performance. I am a retired IBM employee who specialized in hardware and software testing while at IBM. I purchased 2 of Cointerra’s Terraminer 4s. I have thoroughly tested them and found this hardware to be completely unsatisfactory. I strongly do not recommend buying one of these devices. If you do you will be sorry. The reasons why this is a bad investment is as follows. They failed to deliver the pre-orders in a timely manner. You will lose thousands just waiting for the machines to arrive. They will be months later than promised.. They under perform in every way that is important. They promised to deliver a 2 TH machine. The Terraminer 4 cannot be made to go any faster than 1.6 Ths. Believe me when I tell you I have tried. The max speed is 1.6ths which will leave you 400 ghs short. Over time that will cost you loses in the thousands of dollars.. They use nearly double the power that they should use. Each Terraminer uses over 2000 watts per machine. This problem will cause you much hardship. This much power usage can’t be run reliably in most homes as it will cause the circuit breakers to trip. I had to rewire my workroom to accommodate the extraordinary power consumption. Obviously your power bill will sky rocket when running these machines.The Terraminer 4 are also very sensitive to temperature as well. If the air temperature in the room goes over 77 degrees Fahrenheit the hashing rate drops dramatically sometimes going below 1 ths. What this means to you is that you will have to supply additional air conditioning to keep the temperature below 77 degrees. I am running 2 air conditioners that use about 2800 watts of additional electricity. Needless to say my power bill is staggering because of the inferior design of their hardware. The ac and the 2 Terraminers use approximately 24 dollars a day of power. This cuts very deeply into your profits. The Terraminer 4s also are extremely loud. If you are married there is no way that your wife will let you run these things in your house.\\\\r\\\\n\\\\r\\\\n5. The controller card is also very, very flaky causing hashrate to fluctuate wildly during the course of the day. You will spend a great deal of time rebooting the miners restarting Cgminer in order to get the machines to stabilize. In reality these machines are the most unreliable machines of any of the asic manufacturers. Please save yourself a lot of grief and do not purchase these machines.In summation these machines will cost you thousands just to operate. You will spend most of your time monitoring the air conditioning and restarting the miners when they malfunction due to slight over temperature. These machines are garbage avoid them at all cost.To be completely honest these guys should do one of the following things. . They should provide replacement hardware that makes their machines use half the power and run at 2 THs which is what they promised in the first place.. Provide a partial refund at least half the price of the machine. Supply an additional properly working device to make up for the loss of hashing power because of severe under performance.

Cointerra customer-WOW NOT IMPRESSED

I HAVE SPENT NEARLY $20,000 WITH COINTERRA. LET ME TELL YOU I AM NOT IMPRESSED. THE CUSTOMER SERVICE IS HORRIBLE. I CALLED IN TO CHECK ON AN ORDER AND I WAS BARKED AT BY THE GIRL THAT ANSWERED THE PHONE. THE MACHINES DO NOT PERFORM AT THE 2t/H level and THEY USE NEARLY 2X THE ELECTRICITY. SEEMS TO ME KNC MINER IS STILL LEADING THE WAY. I GUESS THAT IS WHAT I GET. WHEN ASKED WHAT THEY COULD DO TO COMPENSATE FOR THE TERRA MINER IV FAILURE. THE BARKED AT ME TOLD ME THEY COULD DO NOTHING I AM FAIRLY CERTAIN THIS WILL END IN A LAWSUIT GIVEN THE FACT THEY ARE STILL OPENLY ADVERTISING THE MACHINES PRODUCE 2TH and the power usage is incorrect as well. They are having some issues. The machines do not produce, They just had a security breach, The customer service is horrible. They treat the customers horrible. I would never buy another product from Cointerra

Products

TerraMiner II – 1TH/s, Networked ASIC Miner

TerraMiner II – 1TH/s, Networked ASIC Miner
TerraMiner IV – 2TH/s, Networked ASIC Miner
cointerra TerraMiner IV – 2TH/s, Networked ASIC Miner

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