So I can double up on watts on a 15A if I switch to 240V too? Would 14 gauge wire still be enough? (I know the code may differ slightly between countries, so just theoretically).
edit: I think I know the answer is yes, but it still throws my brain for a loop trying to imagine why increasing the voltage won't melt the wire, and yet you can still deliver more power with the same gauge of wire
Topic: CoinTerra announces its first ASIC - Hash-Rate greater than 500 GH/s - page 91. (Read 231002 times)
October 24, 2013, 10:45:53 PM
October 24, 2013, 10:06:36 PM
Jesus, I'll have to dedicate a 15 AMP breaker just for mining 
Use 240V. No seriously for any serious miner you likely should consider a dedicate branch and if you are going to do that look into 240V. NEMA L6-30R outlet. Good for 5.76 KW. As an added bonus ATX power supplies tend to be 1% to 2% more efficient at 240V vs 120V.
Totally agree... all power supplies seem to work better at 240 volts... and some are even designed to go higher (for datacenter use)
-- Jez
Almost everything is more efficient at 240V. In fact, I don't know of anything that isn't...but I'm sure there is something.
October 24, 2013, 07:07:36 PM
Jesus, I'll have to dedicate a 15 AMP breaker just for mining
Use 240V. No seriously for any serious miner you likely should consider a dedicate branch and if you are going to do that look into 240V. NEMA L6-30R outlet. Good for 5.76 KW. As an added bonus ATX power supplies tend to be 1% to 2% more efficient at 240V vs 120V.
Totally agree... all power supplies seem to work better at 240 volts... and some are even designed to go higher (for datacenter use)
-- Jez
October 24, 2013, 05:15:10 PM
Jesus, I'll have to dedicate a 15 AMP breaker just for mining
Use 240V. No seriously for any serious miner you likely should consider a dedicate branch and if you are going to do that look into 240V. NEMA L6-30R outlet. Good for 5.76 KW. As an added bonus ATX power supplies tend to be 1% to 2% more efficient at 240V vs 120V.
October 24, 2013, 05:11:47 PM
Jesus, I'll have to dedicate a 15 AMP breaker just for mining
yes, a 2 TH mining rig - even the most power efficient one - is probably going to max out a household circuit, i think thats why they've got two power supplies, which would allow you to spread the load across two circuits in a home environment (and unnecessary in a data centre environment)
October 24, 2013, 05:08:39 PM
Jesus, I'll have to dedicate a 15 AMP breaker just for mining
October 24, 2013, 05:02:08 PM
Energy usage for this machine? anyone!
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
I estimate somewhere between 1.1 kWh and 1.3 kWh per unit.http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
CPUs (2,000) x (0.55) = 1,100 W
Power supply loss = 100 W
Cooling and other components = 100 W
Well if 0.55 J/GH is the chip power consumption throw in another 10% loss for DC regulators (so another 110W or so). ATX power supply is 12V. No ASIC runs at 12V so all ASICs have converters to drop the 12V down to ~1V used by the chip. Nothing is 100% efficient, 90% efficiency is a good place to start.
i did some similar calcs in one of my earlier posts... i suggest around 1500 watts for regular use and 2000 watts if allowing some room for over clocking & overvolting !
October 24, 2013, 04:57:17 PM
Energy usage for this machine? anyone!
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
I estimate somewhere between 1.1 kWh and 1.3 kWh per unit.http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
CPUs (2,000) x (0.55) = 1,100 W
Power supply loss = 100 W
Cooling and other components = 100 W
Well if 0.55 J/GH is the chip power consumption throw in another 10% loss for DC regulators (so another 110W or so). ATX power supply is 12V. No ASIC runs at 12V so all ASICs have converters to drop the 12V down to ~1V used by the chip. Nothing is 100% efficient, 90% efficiency is a good place to start.
October 24, 2013, 03:06:53 PM
Energy usage for this machine? anyone!
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
There is no way to tell what energy usage will be for a machine using chips which have not yet been completely designed.
Energy usage is a physical characteristic, which requires physical simulation to estimate.
Until tape-out is complete, the physical simulation of the finalized design cannot be assumed to have actually happened.
Cointerra's specs are at best ballpark estimates and at worst wishful thinking.
October 24, 2013, 02:38:21 PM
I still don't see why they should be the same price. It wouldn't be fair to the batch #2 buyers who deliberately took a spot in line after batch #1 customers knowing they will get a better price for waiting. If you were to make the prices they same, you would have January people cancelling out so that they can jump into the December queue.. that wouldn't make sense.
I see your point if we were dealing with Butterfly Labs. But I am betting that Cointerra with their expertise, can assembly these units very fast when they get to that point and queue order will not mean much at that point.How do you justify close to an $8,000 difference per unit for those who will receive their mining units literally days apart?
That should make you feel good.
Very good answer and I hope that someone does not end up with a raw deal.
October 24, 2013, 02:29:43 PM
Energy usage for this machine? anyone!
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
I estimate somewhere between 1.1 kWh and 1.3 kWh per unit.http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
CPUs (2,000) x (0.55) = 1,100 W
Power supply loss = 100 W
Cooling and other components = 100 W
October 24, 2013, 01:36:58 PM
Energy usage for this machine? anyone!
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
http://cointerra.com/product/terraminer-iv-2ths-networked-miner-january-batch/
October 24, 2013, 12:56:35 PM
The broader interpretation is more reasonable and thus superior, because it doesn't make sense to refer to three broke but brilliant RTL coders sitting in Mom's basement with no funding as the "best team."
Sorry, it's just funny to see someone who consistently flames on bitcointalk to infer this. You aren't in your Mom's basement, then, ICEBREAKER? That ignore is getting nearly too dark to read.
It's funny you claim I "consistently" flame on bitointalk, yet the quote of mine in your own post is not a flame.
That word, consistently, doesn't mean what you think it means.
My post contributed 100% more on-topic content than your smug trollcop BS.
My Ignore button was shaded in by ActiveMining investors who didn't like me being right, profiting from their mistakes, and rubbing their faces in it.
(Wandering back on topic)
Quote
Has Conterra's putative "best ASIC design team evar" finished fixing their mock tape-out problems yet?
Why is Conterra's putative "best ASIC design team evar" taking four times longer than Hashfast to go from mock to actual tape-out?
Will Conterra's putative "best ASIC design team evar" eventually tape-out? Do they even have enough money to finish NRE and pay for a couple of wafers?
Why is Conterra's putative "best ASIC design team evar" taking four times longer than Hashfast to go from mock to actual tape-out?
Will Conterra's putative "best ASIC design team evar" eventually tape-out? Do they even have enough money to finish NRE and pay for a couple of wafers?
If I had been stupid enough to give my money to Conterra, I would be getting very antsy right now.
October 24, 2013, 12:51:33 PM
I still don't see why they should be the same price. It wouldn't be fair to the batch #2 buyers who deliberately took a spot in line after batch #1 customers knowing they will get a better price for waiting. If you were to make the prices they same, you would have January people cancelling out so that they can jump into the December queue.. that wouldn't make sense.
I see your point if we were dealing with Butterfly Labs. But I am betting that Cointerra with their expertise, can assembly these units very fast when they get to that point and queue order will not mean much at that point.
How do you justify close to an $8,000 difference per unit for those who will receive their mining units literally days apart?
Fact is, we don't know who we are dealing with. It could very well be another Butterfly Labs. To assume the best is nothing more than blind faith. When it comes to something that takes so much faith and patience, order in the queue does matter. I have a January order for 2TH, but I would ask for a refund if all of a sudden December customers are paying the same price. If I wanted to be higher up on the order list, I would have bought a December batch and pay the extra price.
October 24, 2013, 12:43:40 PM
How do you justify close to an $8,000 difference per unit for those who will receive their mining units literally days apart?
What makes you think they will be days apart.
"late Dec" is planning to ship 31 DEC but that will become early Jan unless there is a significant delay.
"Jan" means by Jan 31st which depending on how bad "Dec" slips could be Feb.
October 24, 2013, 12:40:29 PM
I still don't see why they should be the same price. It wouldn't be fair to the batch #2 buyers who deliberately took a spot in line after batch #1 customers knowing they will get a better price for waiting. If you were to make the prices they same, you would have January people cancelling out so that they can jump into the December queue.. that wouldn't make sense.
I see your point if we were dealing with Butterfly Labs. But I am betting that Cointerra with their expertise, can assembly these units very fast when they get to that point and queue order will not mean much at that point.How do you justify close to an $8,000 difference per unit for those who will receive their mining units literally days apart?
That should make you feel good.
October 24, 2013, 12:35:59 PM
I still don't see why they should be the same price. It wouldn't be fair to the batch #2 buyers who deliberately took a spot in line after batch #1 customers knowing they will get a better price for waiting. If you were to make the prices they same, you would have January people cancelling out so that they can jump into the December queue.. that wouldn't make sense.
I see your point if we were dealing with Butterfly Labs. But I am betting that Cointerra with their expertise, can assembly these units very fast when they get to that point and queue order will not mean much at that point.
How do you justify close to an $8,000 difference per unit for those who will receive their mining units literally days apart?
October 24, 2013, 12:19:28 PM
I still don't see why they should be the same price. It wouldn't be fair to the batch #2 buyers who deliberately took a spot in line after batch #1 customers knowing they will get a better price for waiting. If you were to make the prices they same, you would have January people cancelling out so that they can jump into the December queue.. that wouldn't make sense.
October 24, 2013, 12:07:26 PM
We are very much on track for our shipping schedule, production time involves a lot of factors outside of just tape-out and we have our supply chain set up to minimize lead time.
Our partners are all lined up to produce miners at peak capacity and all components for the TerraMiner series will be ready for assembly at high capacity with minimal build time for our shipments.
Our partners are all lined up to produce miners at peak capacity and all components for the TerraMiner series will be ready for assembly at high capacity with minimal build time for our shipments.
That is very good to hear and I hope that you succeed.
However, this brings me to my first question.
I graduated with honors in mathematics, but there is one thing that I just cannot figure out. What am I missing?
Shipping/Delivery for late December (last day of 2013) = $14K per unit (2 TH/s)
Shipping/Delivery for early January (second day 2014) = $6K per unit (2 TH/s)
But you can be up to 30 days late without penalty, which brings me to my second question.
Is your pricing for late December (2013) and early January (2014) now the same, and if not why?
Why would they be the same? Nothing has changed since the pricing first took place..
Pricing has change, originally priced at $15,750 for 2TH/s
Tape-out did not happen on schedule, originally scheduled for September 2013.
Time passed between pricing for December 2013 and January 2014, pricing was not released on the same date.
October 24, 2013, 11:39:59 AM
We are very much on track for our shipping schedule, production time involves a lot of factors outside of just tape-out and we have our supply chain set up to minimize lead time.
Our partners are all lined up to produce miners at peak capacity and all components for the TerraMiner series will be ready for assembly at high capacity with minimal build time for our shipments.
Our partners are all lined up to produce miners at peak capacity and all components for the TerraMiner series will be ready for assembly at high capacity with minimal build time for our shipments.
That is very good to hear and I hope that you succeed.
However, this brings me to my first question.
I graduated with honors in mathematics, but there is one thing that I just cannot figure out. What am I missing?
Shipping/Delivery for late December (last day of 2013) = $14K per unit (2 TH/s)
Shipping/Delivery for early January (second day 2014) = $6K per unit (2 TH/s)
But you can be up to 30 days late without penalty, which brings me to my second question.
Is your pricing for late December (2013) and early January (2014) now the same, and if not why?
Why would they be the same? Nothing has changed since the pricing first took place..
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