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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3045500 times)
HardwareReviewer
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July 04, 2014, 03:09:38 PM
 #36461

Here goes nothing:

Scam Cole.

Prepare to enter a world of stress
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July 04, 2014, 03:40:49 PM
 #36462

It didnt take Elenelen long to ramp right up to 500mhz with simple vrm heatsinks. Imagine what we could do if that cooling tower, thermal blanket, and that stupid bar were all gone, and replaced with an H2O cooler. the vrms, and any heatsink you put on them would then have excellent exposure to airflow.

If someone can mount an Corsair H80 on the chip and mount a push/pull fan configuration right on the side of the box you can literally bring the size of that box down to a small shoe box size. I've been using that Corsair H80 on my overclocked Intel 3930K processor for a while now and works great. It is a completely sealed system and keeps the processor cool at all times. If there is a will, there would be a way. The ASIC chips are larger in size, so making it work would take a good DIY'er.



 Do you know how much heat the H80 can remove?  I think those ASICs are about three times the power draw of your 3930k... it probably wont be enough.


You may be right, the ASIC chip even in its normal operating mode I think runs hotter then an overclocked processor. I still think that kind of setup would be really nice, clean and compact though. Like I said, if there is a will, there is a way. I'm assuming those H80's are filled with some kind of gel or oil.  Maybe if that material is replaced with something that can keep it cooler it would work. Something is pumping that liquid through the radiator, just has to keep up and be powerful enough.

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July 04, 2014, 03:46:09 PM
 #36463

thanks for donation btc for my english!!!!

btc adress is

1ALEoQMkQ1Pd5TedE2uc876kHF4KDC5haD

 Grin Grin Grin Grin Grin Grin Grin Grin

Jelin, stop degrading yourself and spend a dollar on a book and learn English the old fashion way. Seriously, the book only cost $1 and shipping is $2 or something. So get your $3 dollars and learn some English. They do say it is the International language. It's really fun and you can draw lots of smileys in the book too! Smiley


http://www.abebooks.com/English-Grammar-Dummies-Geraldine-Woods/13104155413/bd?cm_mmc=gmc-_-gmc-_-PLA-_-v01


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July 04, 2014, 03:52:03 PM
 #36464

What is the price of a H60?
http://www.amazon.com/Corsair-Series-Performance-Liquid-Cooler/dp/B00A0HZMGA/ref=sr_1_1?ie=UTF8&qid=1404411121&sr=8-1&keywords=h60
so yeah, 5 of those H60's run about 290 dollars shipped.    Gotta be "cost effective" there.

I'll vouch for the quality, as I have an H80 in my main workstation at home and it runs literally silent. I used the fans that came with it, as they seemed to be good quality fans. You can use one exhaust fan on the radiator or use two. One side pulling air out and the other pushing it out. I think that configuration would be very efficient. Most everyone concentrates on keeping the chip itself cool, but as long as you keep whatever is keeping the chip cool itself that will work. Example, an automobile. Keep the radiator fluid cool and the rest will fall into place. Damn, I wish I had some tinkering to do....have this new dremel here which needs a good workout.


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July 04, 2014, 03:52:28 PM
 #36465

Here goes nothing:

Scam HCole.

FTFY Smiley
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July 04, 2014, 04:40:31 PM
 #36466

Good news guys.  I have reduced my VRM temps by 20 degrees C with my new delta fan:


Heres a comparison with the other cubes that still have the stock fans:


Only problem is that it sounds like a Boeing 747 but i would rather be deaf than having burnt VRMs.

How much CRM for the delta fan? It is used to blow the cold air in right? I thought there is a fan inside the box?

Its 240 CFM.  

http://www.newegg.com/Product/Product.aspx?Item=N82E16835213001&cm_re=delta_120mm_fan-_-35-213-001-_-Product

There stock 120mm fan was mounted on the inside but I removed that and had to mount the delta fan on the outside because the delta fan is thicker and wont fit on the inside.  Also I had to use a 120mm to 140mm fan adapter which also adds thickness.  Thats why it looks so bulky in the pic.  It blows air into Neptune.
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July 04, 2014, 04:58:18 PM
 #36467

If you think KNC is deceitful look at Blackarrow or Hashfast.

So I only committed fraud 10 times, not 100, obviously makes it all better..

At the end of the day when you consider, the BFL's of the BTC world, sometimes fraud 10 times doesn't look too bad.  Wink
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July 04, 2014, 05:13:43 PM
 #36468

Am I reading the information right?
After KNC announced in the news of a chip shortage, we will have all of batch one shipped within the next few days?
After finally convincing my brother to refund over this "chip shortage" , they'll probably deny it and ship them anyway. I Hope not.
All this deception is to "keep the competition guessing"?   What about the customers? WTF? This is getting too deep.
Here I go again, not knowing if I should get on the plane or what?


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July 04, 2014, 05:19:52 PM
 #36469

A slight misfortune has visited tolips secret watercooling lair.

First WB install went almost perfect.
Slight problem with ASIC temp. Not bad just no improvement.
Turns out there is sand in the vaselene that came with waterblocks.
Was prepared with other grease anyways.
I had hoped stock grease was adequate for testing, guess not.
So far trivial expected issues.

Move on to second waterblock install and lady luck exits left stage.
One of the 90's I attached to the waterblock FAILED.
It did not seperate completely, I would have had water everywhere.
(yes I was working on it with loop running and other ASICs hashing away)
I have so much flow I have to run only one pump out of two else air bubbles do not collect in resivour.
Woulda been like turning on a garden hose if it had seperated completely.

After I replaced the failed part my PCB only indicated 5 VRMs.
If you ever had a hard disk failure on a PC you may know how I was feeling at the time.
I did not panic, just got out the vacuume and PC crevace tool.
It took a few tries to get the VRMs to go again.
I also let the working VRM's help boil away the water.

All is well now and I'll (much more carefully) install the other 3 today sometime.

Come monday it's time to throw more money at it and get better 90's for all the waterblocks.
I'll also try and extract a pound of flesh from vendor for selling such shit.

Second time I had an issue with 90's from this vendor.
First issue was restricted flow in otherwise bulletproof  cool lookin 90's.
With the leak I am done playing nice, the shit is too fragile for the application.

What's interesting about this adventure is that it is same PCB that challenged me installing 12AWG power wires onto.
I ended up bypassing the PCB 12V copper and running wires directly to each VRM.
The good news is that it was not my mods failed only a temorary shit new part/rain delay.

All in all, for me, it's fun to visit the bleeding edge.

YMMV
Smiley

'twisted research and opinion' donations happily accepted @
13362fxFAdrhagmCvSmFy4WoHrNRPG2V57
My sub 1337 vanity address Wink
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July 04, 2014, 05:49:11 PM
 #36470

Well now to be fair, you have to read the entire article.  Later in the article he "explains' the "lie":

This is where the lie comes into the picture. The video they uploaded to Youtube actually shows a significantly faster product than what they promised customers.

We said from the beginning that our product would do 350 GHz. Then, we went out and said that we had made some adjustments and gotten our chips to be faster. We did things like this a few times, says Andreas Kennemar.

We always knew that the chips would be faster. We lied to make customers happy and to confuse competitors. They didn t know where we d set the bar.


Well to be fair, that is a lie too.

Their jupiter launch video (http://www.youtube.com/watch?v=JFOcI8nK2xI) clearly stated where their bar was:

"It's a 500 machine"
500GH/s
Then a week or so later they insisted if you got 400GH, that was all you were entitled to, even after their launch video promising 500GH/s+.

So they were liars in the sense of NOT delivering what they promised, i.e. liars

I'll remind you for the 7 millionth time of this gem of knc's not-too-distant-past.

Quote
Hi,
 
We understand your concern regarding your miner not performing as well as others, however as your hash rate is higher than 400GH/s we cannot issue a RMA. We are continuously working on the firmware to improve performance and stability.
 
If you have any further questions or issues please do not hesitate in contacting us.  
 
Best regards  | Med vänlig hälsning  
Keith Gurnett  
Kncminer
www.kncminer.com
Office: +46 8559 253 20


So they just lied to people, nothing more or less. Like the lie of claiming they would deliever all units by Oct 15th, even though they knew from the beginning of October they could never achieve that. And a million others if I could be bothered to dig them out.

And I noted 3 other lies knc told to decieve customers above, please address those too if you wish to defend KNC's policy of deceipt.

 Of course, you're right.  I hadn't consider the fact that they said, "We have a 500 machine here for you."
Also, the earliest customers got either the 4VRM or crippled 8VRM machines and those ordering later got 8VRM machines which run cooler and faster and overclock really well.
AND the people hashing in their data center were (allegedly) compensated 4 BTC due to delays but the people having miners shipped a week late got none.
The more I think about it the worse it gets.
 

Forum legend Phinnaeus Gage has passed on. 
 His final wish was for financial assistance. 

/$$$$$$$                                         /$$              /$$$$$$$$ /$$                     /$$       /$$$$$$$$           /$$   /$$            /$$$$$$                                  
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| $$  \ $$  /$$$$$$  /$$   /$$ /$$$$$$$   /$$$$$$ _//$$$$$$$      | $$       /$$ /$$$$$$$   /$$$$$$ | $$      | $$       /$$   /$$ /$$ /$$$$$$        | $$  \__/  /$$$$$$$  /$$$$$$  /$$$$$$/$$$$
| $$$$$$$  /$$__  $$| $$  | $$| $$__  $$ /$$__  $$ /$$_____/      | $$$$$   | $$| $$__  $$ |____  $$| $$      | $$$$$   |  $$ /$$/| $$|_  $$_/        |  $$$$$$  /$$_____/ |____  $$| $$_  $$_  $$
| $$__  $$| $$  \__/| $$  | $$| $$  \ $$| $$  \ $$|  $$$$$$       | $$__/   | $$| $$  \ $$  /$$$$$$$| $$      | $$__/    \  $$$$/ | $$  | $$           \____  $$| $$        /$$$$$$$| $$ \ $$ \ $$
| $$  \ $$| $$      | $$  | $$| $$  | $$| $$  | $$ \____  $$      | $$      | $$| $$  | $$ /$$__  $$| $$      | $$        >$$  $$ | $$  | $$ /$$       /$$  \ $$| $$       /$$__  $$| $$ | $$ | $$
| $$$$$$$/| $$      |  $$$$$$/| $$  | $$|  $$$$$$/ /$$$$$$$/      | $$      | $$| $$  | $$|  $$$$$$$| $$      | $$$$$$$$ /$$/\  $$| $$  |  $$$$/      |  $$$$$$/|  $$$$$$$|  $$$$$$$| $$ | $$ | $$
|_______/ |__/       \______/ |__/  |__/ \______/ |_______/       |__/      |__/|__/  |__/ \_______/|__/      |________/|__/  \__/|__/   \___/         \______/  \_______/ \_______/|__/ |__/ |__/
                                                                                                                                                                                                 
                                                                                                                                                                                                 
                                                                                                                                                                                                 

  Donations of any amount are appreciated.
 <-Click on that to read Bruno's request.
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July 04, 2014, 06:07:20 PM
 #36471

As I understand it to cool Neptune VRM's there is a poorly manufactured aluminum plate in the form of an "E" with the outer legs on the VRM's and the middle leg holding the heat sink in place.

There is some kind of thick heat foam between the VRM's and the plate to transfer the heat to the plate but then where does the heat go? Is it dissipated by the metal plate or is it thermally bonded to the top of the heat pipe sink?

Thanks

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July 04, 2014, 06:12:58 PM
 #36472

We now have shipping confirmations on KnC forum from today; still nobody has confirmed receiving a Neptune since Q2.

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July 04, 2014, 06:25:31 PM
 #36473

Well now to be fair, you have to read the entire article.  Later in the article he "explains' the "lie":

This is where the lie comes into the picture. The video they uploaded to Youtube actually shows a significantly faster product than what they promised customers.

We said from the beginning that our product would do 350 GHz. Then, we went out and said that we had made some adjustments and gotten our chips to be faster. We did things like this a few times, says Andreas Kennemar.

We always knew that the chips would be faster. We lied to make customers happy and to confuse competitors. They didn t know where we d set the bar.


Well to be fair, that is a lie too.

Their jupiter launch video (http://www.youtube.com/watch?v=JFOcI8nK2xI) clearly stated where their bar was:

"It's a 500 machine"
500GH/s
Then a week or so later they insisted if you got 400GH, that was all you were entitled to, even after their launch video promising 500GH/s+.

So they were liars in the sense of NOT delivering what they promised, i.e. liars

I'll remind you for the 7 millionth time of this gem of knc's not-too-distant-past.

Quote
Hi,
 
We understand your concern regarding your miner not performing as well as others, however as your hash rate is higher than 400GH/s we cannot issue a RMA. We are continuously working on the firmware to improve performance and stability.
 
If you have any further questions or issues please do not hesitate in contacting us.  
 
Best regards  | Med vänlig hälsning  
Keith Gurnett  
Kncminer
www.kncminer.com
Office: +46 8559 253 20


So they just lied to people, nothing more or less. Like the lie of claiming they would deliever all units by Oct 15th, even though they knew from the beginning of October they could never achieve that. And a million others if I could be bothered to dig them out.

And I noted 3 other lies knc told to decieve customers above, please address those too if you wish to defend KNC's policy of deceipt.

 Of course, you're right.  I hadn't consider the fact that they said, "We have a 500 machine here for you."
Also, the earliest customers got either the 4VRM or crippled 8VRM machines and those ordering later got 8VRM machines which run cooler and faster and overclock really well.
AND the people hashing in their data center were (allegedly) compensated 4 BTC due to delays but the people having miners shipped a week late got none.
The more I think about it the worse it gets.
 
true, somewhat, if a bit backwards......  the 8 VRM Jupiters were the "early" ones.  
Mostly, people got the 4 VRM Jupiters, which "overclocked" just fine tho.
The "lucky" few people who got the early 8VRM Jupiters normally had dead VRM's... unless you did some tweaking.
Now, with Neptune's power requirements, all come with 8 VRM's, with all 8 nearly "maxed out".


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tolip_wen
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July 04, 2014, 06:33:50 PM
Last edit: July 04, 2014, 06:51:30 PM by tolip_wen
 #36474

As I understand it to cool Neptune VRM's there is a poorly manufactured aluminum plate in the form of an "E" with the outer legs on the VRM's and the middle leg holding the heat sink in place.

There is some kind of thick heat foam between the VRM's and the plate to transfer the heat to the plate but then where does the heat go? Is it dissipated by the metal plate or is it thermally bonded to the top of the heat pipe sink?

Thanks

The VRM heat goes from VRM -> foam -> plate ->  some radiates off the plate some may transfer down from the plate into ASIC heatsink but that would depend on temperature of each part.
The heat only goes to cooler places, if the base of heatsink is hotter than the plate(not VRM temp BTW) it will warm it(plate) too.

(second law of thermodynamics??)

If the 'heatsink base' is cooler than the plate, adding a dab of grease between plate and heatsink would help.
Else the ASIC will contribute to VRM temp issues.

Would need to attach thermocouple to a small probe  and measure plate and base of heatsink to 'know'.

The plate is WELL MANUFACTURED.
They are almost perfectly flat.
Turns out IMneverHO that flat is not ideal.
I bend the ends of the outer legs down for better contact of plate/foam/VRM.

Easy no parts needed improvement in VRM temps!
You can look at imprint in foam and determine where it needs more pressure.

It can be done without unsticking heatsink from ASIC if you bend the fan back and carefully pry plate up from VRM's.
The foam acts like doublesided tape.
It's more like clay or plumbers putty than foam.

I also squeezed the foam/clay a bit to make it taller before reinstall of plate.

YMMV
Smiley

EDIT there is also foam below PCB under same challenged VRM's.
Raising cubes up a bit will help bottom of case radiate some of the heat.

The whole foam thing is an OK idea but poorly implimented.

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July 04, 2014, 06:37:45 PM
 #36475


All is well now and I'll (much more carefully) install the other 3 today sometime.

Come monday it's time to throw more money at it



Are you in this to get a little money back or just fooling around and tinkering like a hobby?


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July 04, 2014, 06:52:25 PM
 #36476

A slight misfortune has visited tolips secret watercooling lair.

First WB install went almost perfect.
Slight problem with ASIC temp. Not bad just no improvement.
Turns out there is sand in the vaselene that came with waterblocks.
Was prepared with other grease anyways.
I had hoped stock grease was adequate for testing, guess not.
So far trivial expected issues.

Move on to second waterblock install and lady luck exits left stage.
One of the 90's I attached to the waterblock FAILED.
It did not seperate completely, I would have had water everywhere.
(yes I was working on it with loop running and other ASICs hashing away)
I have so much flow I have to run only one pump out of two else air bubbles do not collect in resivour.
Woulda been like turning on a garden hose if it had seperated completely.

After I replaced the failed part my PCB only indicated 5 VRMs.
If you ever had a hard disk failure on a PC you may know how I was feeling at the time.
I did not panic, just got out the vacuume and PC crevace tool.
It took a few tries to get the VRMs to go again.
I also let the working VRM's help boil away the water.

All is well now and I'll (much more carefully) install the other 3 today sometime.

Come monday it's time to throw more money at it and get better 90's for all the waterblocks.
I'll also try and extract a pound of flesh from vendor for selling such shit.

Second time I had an issue with 90's from this vendor.
First issue was restricted flow in otherwise bulletproof  cool lookin 90's.
With the leak I am done playing nice, the shit is too fragile for the application.

What's interesting about this adventure is that it is same PCB that challenged me installing 12AWG power wires onto.
I ended up bypassing the PCB 12V copper and running wires directly to each VRM.
The good news is that it was not my mods failed only a temorary shit new part/rain delay.

All in all, for me, it's fun to visit the bleeding edge.

YMMV
Smiley

just curious, any reason to use 90o fittings versus straight in fittings to the waterblock?


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July 04, 2014, 06:56:43 PM
 #36477

Mining btc is final hobby
tolip_wen
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July 04, 2014, 06:59:13 PM
 #36478


All is well now and I'll (much more carefully) install the other 3 today sometime.

Come monday it's time to throw more money at it



Are you in this to get a little money back or just fooling around and tinkering like a hobby?



I consider it as my Saturns financed my hobby.
All my additional investments have uses that will outlive the ASICs.
Metal parts last forever.
The money is thrown but not thrown out Smiley

YMMV
Smiley

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July 04, 2014, 07:13:15 PM
Last edit: July 04, 2014, 07:46:23 PM by tolip_wen
 #36479


just curious, any reason to use 90o fittings versus straight in fittings to the waterblock?


trivial reasons, not needed.

Can stack PCBs 1 per 80-100mm

I stacked with straight barbs but not as dense as possible.
http://i.imgur.com/xoHsaiJ.jpg
http://i.imgur.com/GXvNz3g.jpg

With 90's I could stack the Hoopiter on the left and the Nep on the right, remote the radiator and replace with single large fan.
Not that I would. but I want it to be just big enough eventually. whatever I end up with for an ASIC case.

YMMV
Smiley

EDIT My hoopiter configuration has a potential flaw if I get a big air bubble in inverted waterblocks while running flat.
Designed for sitting on it side though. (that density thing again)

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July 04, 2014, 07:44:40 PM
 #36480






Looks like a time-machine.

All is Mine!

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