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Author Topic: www.lketc.com 1TH Dragon miner direct order. 3000$  (Read 25462 times)
Gator-hex
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March 23, 2014, 07:08:56 PM
 #61

From the picture I count they are making this new model with 4 blades. That is 8 chips per blade 250GH/blade ~31.25GH/chip = 1000GH unit with around 900w power.

I doubt the new one will run at 0.9W/GH @ 31.25GH a chip, probably more like 1.2W/GH, you cannot get more GH per chip without using more power.

I see they've finally figured out it's a 30/70 package and they need a heatsink on both sides of the chip.  Cheesy

I'd still rather have the old one and pay a little more to save my power bills, but I guess for people who want higher density and lower $/GH this is better.

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March 23, 2014, 07:33:04 PM
 #62

Runtime Server Exception when I click "Buy Now" or try to proceed through cart. Anyone else getting this?
sikke (OP)
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March 23, 2014, 08:06:01 PM
 #63

From the picture I count they are making this new model with 4 blades. That is 8 chips per blade 250GH/blade ~31.25GH/chip = 1000GH unit with around 900w power.

I doubt the new one will run at 0.9W/GH @ 31.25GH a chip, probably more like 1.2W/GH, you cannot get more GH per chip without using more power.

I see they've finally figured out it's a 30/70 package and they need a heatsink on both sides of the chip.  Cheesy

I'd still rather have the old one and pay a little more to save my power bills, but I guess for people who want higher density and lower $/GH this is better.

More power per chip yes but also 1 total blade less. Total number of chips is 20% less i still think it's around 900w as they advertice.

Original unit was like 200GH / 180watts per blade, i have 1 onit its total draw from wall is around 900.

So if new design is 250GH / anything less than 240watts  / blade keeps the unit still under 1kw total. I really doubt they would improve blades desing to sustain +100w more powerdraw thats too much for the power lines. 1TH/1.2KW unit dont make sense

We will see.

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March 23, 2014, 08:18:53 PM
 #64

has anyone figured out how to overclock the "gen1" blades? can it be done? should it be done? Should I add a power supply?

I cannot find any info on the overclocking. Oh, and if someone can figure out the logo on the LCD screen....Id pay for that.
sikke (OP)
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March 23, 2014, 08:22:11 PM
 #65

has anyone figured out how to overclock the "gen1" blades? can it be done? should it be done? Should I add a power supply?

I cannot find any info on the overclocking. Oh, and if someone can figure out the logo on the LCD screen....Id pay for that.


Start with extra psu. Good chance something breaks.

1.2Th is impossible and the reason why you got no instructions on how to overclock the Dragon units is because it will go up in smoke if you push it (Cheap-ass components)

https://bitcointalk.org/index.php?topic=500969.msg5785812#msg5785812
Gator-hex
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March 24, 2014, 04:35:12 PM
Last edit: March 24, 2014, 05:55:46 PM by Gator-hex
 #66

From the picture I count they are making this new model with 4 blades. That is 8 chips per blade 250GH/blade ~31.25GH/chip = 1000GH unit with around 900w power.

I doubt the new one will run at 0.9W/GH @ 31.25GH a chip, probably more like 1.2W/GH, you cannot get more GH per chip without using more power.

I see they've finally figured out it's a 30/70 package and they need a heatsink on both sides of the chip.  Cheesy

I'd still rather have the old one and pay a little more to save my power bills, but I guess for people who want higher density and lower $/GH this is better.

More power per chip yes but also 1 total blade less. Total number of chips is 20% less i still think it's around 900w as they advertice.

Original unit was like 200GH / 180watts per blade, i have 1 onit its total draw from wall is around 900.

So if new design is 250GH / anything less than 240watts  / blade keeps the unit still under 1kw total. I really doubt they would improve blades desing to sustain +100w more powerdraw thats too much for the power lines. 1TH/1.2KW unit dont make sense

We will see.

Think about what you're saying...

40 chips x 25GH = 1000GH = 0.9W/GH

32 chips x 25GH = 800GH = 0.9W/GH

32 chips x 31.25GH = 1000GH = more watts/GH!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch. 4 x 300W = 1.2W/GH

klondike_bar
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March 24, 2014, 04:46:13 PM
 #67

^watts at the wall was mentioned. this means that the measured power is about 10-15% more than what the PSU is putting out (probably around 85% efficiency)


24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461
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sikke (OP)
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March 24, 2014, 05:18:02 PM
Last edit: March 24, 2014, 05:39:29 PM by sikke
 #68

Think about what you're saying...

40 chips x 25GH = 1000GH/900W

32 chips x 25GH = 800GH/900W ??

32 chips x 31.25GH = 1000GH/more watts!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch. 4 x 300W = 1.2W/GH

Sorry I was not that clear. Need to improve my English, thats was very bad post. I am saying more watts per chip yes, still 1 less blade take less watts in total. They wont go from 180watts per blade to 300watts per blade, no point. I put killa-a-watt to my unit today and it was pulling 878w from wall with 1TH ok i have swapped the chinese 1kw psu to FPS Aurum 1.2kw psu which might run bit more efficient. Also my fans are taking less watts. I swapped silent ones.

40chips x 25GH = 1000GH/900W 5 blades
32chips x 25GH = 800GH/720W 4 blades
32chips x 31,25GH = 1000GH/+900w 4 blades lets say 25% increase in hashpower and 30% increase in power consumption. Could be possible.

32chips x 31,25GH = 1000GH/1200W would be 25% increase in hashpower and 68% increase in power consumption... thats too much. My bet is closer to 1W/GH or under.

That unit cant draw 1.2kw or it's fail in design. No point making it. I quess we will see soon. I have one coming I assume it's new design.

I am just speculating here with no better knowledge. Lets assume I am wrong. Maybe we see 1200w psu there.
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March 24, 2014, 05:40:14 PM
 #69

Has anyone received their miner ?
Gator-hex
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March 24, 2014, 06:02:28 PM
 #70

Think about what you're saying...

40 chips x 25GH = 1000GH/900W

32 chips x 25GH = 800GH/900W ??

32 chips x 31.25GH = 1000GH/more watts!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch. 4 x 300W = 1.2W/GH

Sorry I was not that clear. Need to improve my English, thats was very bad post. I am saying more watts per chip yes, still 1 less blade take less watts in total. They wont go from 180watts per blade to 300watts per blade, no point. I put killa-a-watt to my unit today and it was pulling 878w from wall with 1TH ok i have swapped the chinese 1kw psu to FPS Aurum 1.2kw psu which might run bit more efficient. Also my fans are taking less watts. I swapped silent ones.

40chips x 25GH = 1000GH/900W 5 blades
32chips x 25GH = 800GH/720W 4 blades
32chips x 31,25GH = 1000GH/+900w 4 blades lets say 25% increase in hashpower and 30% increase in power consumption. Could be possible.

32chips x 31,25GH = 1000GH/1200W would be 25% increase in hashpower and 68% increase in power consumption... thats too much. My bet is closer to 1W/GH or under.

That unit cant draw 1.2kw or it's fail in design. No point making it. I quess we will see soon. I have one coming I assume it's new design.

I am just speculating here with no better knowledge. Lets assume I am wrong. Maybe we see 1200w psu there.

Typo should have been...

40 chips x 25GH = 1000GH = 0.9W/GH

32 chips x 25GH = 800GH = 0.9W/GH

32 chips x 31.25GH = 1000GH = more watts/GH!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch of chips. 4 x 300W = 1.2W/GH

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March 24, 2014, 08:08:56 PM
 #71

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

Overclocking is primarily a linear relationship. Overvolting is exponential. If they are simply overclocking (and not overvolting), then the watts per GH/s will be mostly unchanged.

Buy & Hold
Gator-hex
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March 24, 2014, 08:48:04 PM
Last edit: March 24, 2014, 08:58:45 PM by Gator-hex
 #72

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

Overclocking is primarily a linear relationship. Overvolting is exponential. If they are simply overclocking (and not overvolting), then the watts per GH/s will be mostly unchanged.

If you don't increase the voltage, with the clock increase, you will just get hardware errors and rejects.

seriouscoin
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March 24, 2014, 09:50:52 PM
 #73

So anyone here successfully order from the site in the OP?

How did they confirm your btc payment?


Btw, since they dont use services like Bitpay, what exchange rate do they use? from which exchange?
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March 25, 2014, 12:46:59 AM
 #74

IS the new Design 3U or 4U ? also is it available with  the current batch?
sikke (OP)
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March 25, 2014, 12:30:26 PM
Last edit: March 25, 2014, 02:38:28 PM by sikke
 #75



Typo should have been...

40 chips x 25GH = 1000GH = 0.9W/GH
32 chips x 25GH = 800GH = 0.9W/GH
32 chips x 31.25GH = 1000GH = more watts/GH!

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

I have Hex8A1 boards running 8x A1 chips @ 250GH and they're way over 300W each. Assuming it's a better batch of chips. 4 x 300W = 1.2W/GH

I stand corrected. You sir were correct.  Lips sealed They might gone over the head trying to make 1TH miner cheaper. Soon we will read reports of these units mass failing.

Quote
https://bitcointalk.org/index.php?topic=500969.msg5890463#msg5890463

I have one unit that draws 1050 watts at the wall (measured using a Killowatt), and another unit that draws 1170 watts at the wall!

They went worse. These units will not last.
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March 25, 2014, 04:50:26 PM
 #76

You cannot magic 200GH out of thin air without adding more watts and it's an exponential relationship so it will require more than 20% extra watts.

Overclocking is primarily a linear relationship. Overvolting is exponential. If they are simply overclocking (and not overvolting), then the watts per GH/s will be mostly unchanged.

If you don't increase the voltage, with the clock increase, you will just get hardware errors and rejects.

thats semi-true. You could probably overclock linearly for about 10% before errors begin to arise and then you must increase the voltage slightly to continue clocking higher.

The power draw should be more, but its likely not much more

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461
No longer a wannabe - now an ASIC owner!
pedrosoft
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March 25, 2014, 06:26:34 PM
 #77

Has anyone received their miner ? Smiley
dropt
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March 25, 2014, 07:39:23 PM
 #78

Has anyone received their miner ? Smiley

Considering the current sales are advertised to begin shipping Mar 28, I think you're a little early on your request.
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March 25, 2014, 07:53:35 PM
 #79

Has anyone received their miner ? Smiley

Considering the current sales are advertised to begin shipping Mar 28, I think you're a little early on your request.


Pardon!   Cheesy
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March 26, 2014, 08:26:49 AM
 #80

Has anyone received their miner ?

I have received 3 units via DHL.  We are pulling 1130 watts from the wall @ 1.08 TH/s.   


Here is a video I made.   Enjoy.

https://www.youtube.com/watch?v=OVQkQ37BGhk


Cheers,
Dalkore

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