Bitcoin Forum
May 22, 2024, 05:17:48 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 [35] 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 ... 124 »
  Print  
Author Topic: CoinTerra announces its first ASIC - Hash-Rate greater than 500 GH/s  (Read 230757 times)
Epoch
Legendary
*
Offline Offline

Activity: 922
Merit: 1003



View Profile
October 25, 2013, 03:37:08 PM
 #681

I'm hoping the the 2TH Cointerra does not require more than 1440W. Right now that's still up the air.
aerobatic
Hero Member
*****
Offline Offline

Activity: 702
Merit: 500


View Profile
October 25, 2013, 03:52:18 PM
 #682

I'm hoping the the 2TH Cointerra does not require more than 1440W. Right now that's still up the air.

why do you care whether its 1440 watts or more?   there are two power cables, so you plug each one into a different circuit if youre using 120 volts), or could be the same circuit if youre on 240 volts.

lets say 2000 TH needs 1200-1300 watts (0.6 ish W/GH).  and the fans (there's 6 of them in the photo, 3 at the front, 3 at the back)... and the pumps (there's 4 of them, one for each chip) are probably 100 watts... and the controller board... (im guessing, 20?)...   so you're probably on the max end of your 1440 watts, without allowing for power supply inefficiencies.. and dc/dc power contverter efficiencies, so i think its going to be, realistically, above 1440 watts, even for nominal use.   And then wouldnt you want to overclock/overvolt them to make them run faster, at least initially, when its makes more sense to get more GH's out of it?

like everyone else in the 28nm world, im sure they will also offer a way to undervolt to save power, at the expense of GH's

-- Jez
Epoch
Legendary
*
Offline Offline

Activity: 922
Merit: 1003



View Profile
October 25, 2013, 04:01:37 PM
 #683

I'm hoping the the 2TH Cointerra does not require more than 1440W. Right now that's still up the air.
why do you care whether its 1440 watts or more?   there are two power cables, so you plug each one into a different circuit if youre using 120 volts), or could be the same circuit if youre on 240 volts.

lets say 2000 TH needs 1200-1300 watts (0.6 ish W/GH).  and the fans (there's 6 of them in the photo, 3 at the front, 3 at the back)... and the pumps (there's 4 of them, one for each chip) are probably 100 watts... and the controller board... (im guessing, 20?)...   so you're probably on the max end of your 1440 watts, without allowing for power supply inefficiencies.. and dc/dc power contverter efficiencies, so i think its going to be, realistically, above 1440 watts, even for nominal use.   And then wouldnt you want to overclock/overvolt them to make them run faster, at least initially, when its makes more sense to get more GH's out of it?

like everyone else in the 28nm world, im sure they will also offer a way to undervolt to save power, at the expense of GH's
I care because I don't have 2 120V/15A circuits in close proximity to one another. I don't have 240V. I have no intention to do any 'rewiring' in my house. My datacenter charges me for each 120V/15A circuit I use. In other words, the device would be much less hassle to deploy (for many people, I imagine), if it could be run from a single and very common 120V/15A circuit.

Your calculations are incomplete until you know the power requirements of the ASICs. This is the big unknown. BFL was off by a factor of 5 (what they *thought* would be 60W turned out to be almost 300W). I don't expect Cointerra to make a mistake of this magnitude, but until they have actual silicon the reality is that we do not, and cannot, know what the power will be.
aerobatic
Hero Member
*****
Offline Offline

Activity: 702
Merit: 500


View Profile
October 25, 2013, 04:08:58 PM
 #684

Your calculations are incomplete until you know the power requirements of the ASICs. This is the big unknown. BFL was off by a factor of 5 (what they *thought* would be 60W turned out to be almost 300W). I don't expect Cointerra to make a mistake of this magnitude, but until they have actual silicon the reality is that we do not, and cannot, know what the power will be.

agreed, we dont know the exact power til theyve taped out, though since everyone else is also in the same range, i think for the next few days we can assume its 0.6 ISH, since thats where most of the 28nm chips seem to be drawing... (hashfast, bfl, etc) and then when they announce the tapeout final figures, we will know exactly.  thats why i suggested 1200-1300 watts, allowing for 0.65 w/gh (same as hf).

no one else in the bitcoin asic world has got it so wrong as bfl did last time, so that was a monumental error on their part and you cant tar everyone else with the same brush.  there's no way that anyone else is going to make a mistake and get the power wrong by 5X!

but it does seem that 2 TH is about the max that you can power off of one household circuit in the 28nm generation (from any asic supplier), and even that is borderline and better to do it off two circuits.

i think its clear that the long-term future of bitcoin mining is in datacenters... even for individual ownership, or as part of hashing contracts... it makes more sense for these power hungry boxes to be hosted somewhere professional with good cooling and reliable power.

-- Jez
ralree
Hero Member
*****
Offline Offline

Activity: 518
Merit: 500


Manateeeeeeees


View Profile
November 04, 2013, 02:16:37 AM
 #685

I wish there was some news.  It's hard to feel good about silence.

1MANaTeEZoH4YkgMYz61E5y4s9BYhAuUjG
DeathAndTaxes
Donator
Legendary
*
Offline Offline

Activity: 1218
Merit: 1079


Gerald Davis


View Profile
November 04, 2013, 04:44:45 AM
 #686

agreed, we dont know the exact power til theyve taped out, though since everyone else is also in the same range, i think for the next few days we can assume its 0.6 ISH, since thats where most of the 28nm chips seem to be drawing... (hashfast, bfl, etc) and then when they announce the tapeout final figures, we will know exactly.  thats why i suggested 1200-1300 watts, allowing for 0.65 w/gh (same as hf).

Chip wattage =/= wattage at the wall.  Figure 90% lost in DC conversion, and another 90% lost ATX PSU and add in overhead for cooling and host.

If the chip is 0.55 J/GH no way you are looking at the wall wattage of only 1300W.

Quote
but it does seem that 2 TH is about the max that you can power off of one household circuit in the 28nm generation (from any asic supplier), and even that is borderline and better to do it off two circuits.

Agreed.  I doubt we will see higher than 2 TH/s and 1.0 or 1.5 TH/s may make more sense in the long run.   Continual loads need to be derated 20% (NEC) so that limits a 120V, 15A circuit to 1440W continual.  You can always use more units if you want more power.
ralree
Hero Member
*****
Offline Offline

Activity: 518
Merit: 500


Manateeeeeeees


View Profile
November 04, 2013, 05:12:30 AM
 #687

agreed, we dont know the exact power til theyve taped out, though since everyone else is also in the same range, i think for the next few days we can assume its 0.6 ISH, since thats where most of the 28nm chips seem to be drawing... (hashfast, bfl, etc) and then when they announce the tapeout final figures, we will know exactly.  thats why i suggested 1200-1300 watts, allowing for 0.65 w/gh (same as hf).

Chip wattage =/= wattage at the wall.  Figure 90% lost in DC conversion, and another 90% lost ATX PSU and add in overhead for cooling and host.

If the chip is 0.55 J/GH no way you are looking at the wall wattage of only 1300W.

Quote
but it does seem that 2 TH is about the max that you can power off of one household circuit in the 28nm generation (from any asic supplier), and even that is borderline and better to do it off two circuits.

Agreed.  I doubt we will see higher than 2 TH/s and 1.0 or 1.5 TH/s may make more sense in the long run.   Continual loads need to be derated 20% (NEC) so that limits a 120V, 15A circuit to 1440W continual.  You can always use more units if you want more power.

Investing in a good 220V PDU and a 220V 30A circuit is a good idea if you're planning to run lots of equipment.  I'm really glad I did this.

1MANaTeEZoH4YkgMYz61E5y4s9BYhAuUjG
Gyrsur
Legendary
*
Offline Offline

Activity: 2856
Merit: 1520


Bitcoin Legal Tender Countries: 2 of 206


View Profile WWW
November 04, 2013, 08:24:24 AM
 #688

did Cointerra tape-out in the meantime?

DeathAndTaxes
Donator
Legendary
*
Offline Offline

Activity: 1218
Merit: 1079


Gerald Davis


View Profile
November 04, 2013, 08:25:52 AM
 #689

did Cointerra tape-out in the meantime?

They haven't said a single word.   Last statement was "tape scheduled for early Oct" and then silence.
edgar
Legendary
*
Offline Offline

Activity: 1848
Merit: 1001


View Profile
November 04, 2013, 08:48:43 AM
 #690

i want to believe its worth it - but even 6 grand seems a waste now.

Id be fuming if id spent 15.
Wesly
Full Member
***
Offline Offline

Activity: 185
Merit: 100


View Profile WWW
November 04, 2013, 08:53:06 AM
 #691

Just came across CoinTerra's Google's Adwords ads.  "Easy Money"  I agree it is easy money for CoinTerra, not so much for their customers unless they meant easy come, easy go Cheesy

RoadStress
Legendary
*
Offline Offline

Activity: 1904
Merit: 1007


View Profile
November 04, 2013, 10:04:04 AM
 #692

Just came across CoinTerra's Google's Adwords ads.  "Easy Money"  I agree it is easy money for CoinTerra, not so much for their customers unless they meant easy come, easy go Cheesy




So is this moving slowly to a fail?

Easy2Mine
Hero Member
*****
Offline Offline

Activity: 854
Merit: 500


einc.io


View Profile
November 04, 2013, 11:19:06 AM
 #693

Just came across CoinTerra's Google's Adwords ads.  "Easy Money"  I agree it is easy money for CoinTerra, not so much for their customers unless they meant easy come, easy go Cheesy




So is this moving slowly to a fail?

I hope so.
I don't like their faces

bitblazing
Member
**
Offline Offline

Activity: 109
Merit: 10


View Profile
November 04, 2013, 11:54:55 AM
 #694

Ok so Cointerra it is now November. Customers should be provided a update on the tapeout. Communication is very important and right now you guys are not doing a good job.
hagbase
Sr. Member
****
Offline Offline

Activity: 433
Merit: 254



View Profile
November 04, 2013, 11:59:52 AM
 #695

Ok so Cointerra it is now November. Customers should be provided a update on the tapeout. Communication is very important and right now you guys are not doing a good job.

+1
Gyrsur
Legendary
*
Offline Offline

Activity: 2856
Merit: 1520


Bitcoin Legal Tender Countries: 2 of 206


View Profile WWW
November 04, 2013, 12:00:25 PM
 #696

did Cointerra tape-out in the meantime?

They haven't said a single word.   Last statement was "tape scheduled for early Oct" and then silence.

thank you very much!

BBQKorv
Sr. Member
****
Offline Offline

Activity: 280
Merit: 250



View Profile
November 04, 2013, 02:29:50 PM
 #697

When can I order these for immediate shipping? No more pre-orders without CC or PayPal for me.
ImI
Legendary
*
Offline Offline

Activity: 1946
Merit: 1019



View Profile
November 04, 2013, 02:34:10 PM
 #698

When can I order these for immediate shipping? No more pre-orders without CC or PayPal for me.

next summer?
GandalfG
Sr. Member
****
Offline Offline

Activity: 259
Merit: 250


Dig your freedom


View Profile
November 04, 2013, 02:45:35 PM
 #699

When can I order these for immediate shipping? No more pre-orders without CC or PayPal for me.
Only Avalon rig, chip and Bitfury chip are on stock for immediate shipping. Other companies still are parasitic on pre-orders.

Want to say thanks? 16ragydppe9QFRVhrdwEUjgfMS7KCfEFGY
dhenson
Legendary
*
Offline Offline

Activity: 994
Merit: 1000



View Profile
November 04, 2013, 04:32:32 PM
 #700

When can I order these for immediate shipping? No more pre-orders without CC or PayPal for me.
Only Avalon rig, chip and Bitfury chip are on stock for immediate shipping. Other companies still are parasitic on pre-orders.

Bit burner Fury 50gh in Stock for sale here
https://bitcointalk.org/index.php?topic=322129.0
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 [35] 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 ... 124 »
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!