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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3012239 times)
tzortz
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June 27, 2014, 10:38:18 PM
 #36161

what temps you running? no experience with neps but revived maybe 100 jupiter boards over the last 9 months

How did you revive them?

I have not seen anywhere clearly how can be done.

Can you please give some directions?

Thanks.

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June 27, 2014, 10:49:58 PM
 #36162

does a neptune have the same advanced page as a jupiter, where you can change spi volt, and die volt?
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June 27, 2014, 10:56:04 PM
 #36163

does a neptune have the same advanced page as a jupiter, where you can change spi volt, and die volt?

no spi
http://i.imgur.com/dDP8J4p.png

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June 27, 2014, 11:12:02 PM
 #36164

in my experience you either need more heat or less heat. If it's more heat, stop the fan is the easist way to create more to see if they kick back in. I have no idea if a nep box can be opened? You can also play with the Die voltage and increase the Die next to the none functional ones, creating more heat and igniting the dead ones.
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June 28, 2014, 02:32:12 AM
 #36165

what temps you running? no experience with neps but revived maybe 100 jupiter boards over the last 9 months

How did you revive them?

I have not seen anywhere clearly how can be done.

Can you please give some directions?

Thanks.
Heat(blocking cooling tower fan with cardboard to reach 80C)
and/or
undervolting


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aasl
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June 28, 2014, 05:20:22 AM
 #36166

They're shipping.  I got 2 x batch 1 neptunes earlier this week.

could you post your order number (or maybe the first three digits?)?

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June 28, 2014, 07:23:53 AM
 #36167

Maximum operating temperature of the BMR46x series is 125 C.

http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146435&Lang=EN&HighestFree=Y

Elenelen, when you get a chance could you please read the numbers on the two black 8 pin packages near the side of the board and post them here ?


I have removed the aluminum plate, so now I can see the Ericsson VRM's..... this is bad: they are the BMR4641002 (max 40A) instead of the BMR4641008 (max 50A).  Angry ...... no OC possible !

The 1002 has a OverCurrentProtection of 48A and looking to my Advanced-page: nearly all the VRMs are already around 46-47A (and this is KnC's default setting).
They should have used the 1008 instead, which has 50A and an OCP of 62A.
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June 28, 2014, 07:45:52 AM
 #36168

I have removed the aluminum plate, so now I can see the Ericsson VRM's..... this is bad: they are the BMR4641002 (max 40A) instead of the BMR4641008 (max 50A).  Angry ...... no OC possible !

The 1002 has a OverCurrentProtection of 48A and looking to my Advanced-page: nearly all the VRMs are already around 46-47A (and this is KnC's default setting).
They should have used the 1008 instead, which has 50A and an OCP of 62A.

40A @ 60C
We run em @ ~80C so derate to around 32A
(90C detate to 25A)
per the documentation

http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146435&Lang=EN&HighestFree=Y

Need to average in mind between first 2 graps on page 11 for 0.78V

YMMV
Smiley

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June 28, 2014, 07:48:47 AM
 #36169

knc are catastrophic, i feel so sorry for anyone that got five of these fire hazards, cheap cunts always going to be cheap cunts.
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June 28, 2014, 08:03:29 AM
 #36170

40A @ 60C
We run em @ ~80C so derate to around 32A
(90C detate to 25A)
per the documentation

http://archive.ericsson.net/service/internet/picov/get?DocNo=28701-EN/LZT146435&Lang=EN&HighestFree=Y

Need to average in mind between first 2 graps on page 11 for 0.78V

YMMV
Smiley

Ah.. Ok.. thanks.
So we need to cool them down below 70C to as far as possible... that's quite a task (if not impossible).... but still there is the OCP of 48A
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June 28, 2014, 08:17:31 AM
 #36171

Avenger, good to see you are still trolling this thread. I know you guaranteed many times that nobody would get a neptune before the end of Q2, but here we are again and KNC is shipping.

Get a life, move on from this thread.
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June 28, 2014, 08:47:52 AM
 #36172

Ah.. Ok.. thanks.
So we need to cool them down below 70C to as far as possible... that's quite a task (if not impossible).

The OCT and Nov units also ran the VRMs very hot
It seems that the parts are better than advertised.

If you look at the bottom of PCB can see some ground via's directly below VRM.
Ideal location for small heatsinks.

I JB welded some to one of my 28nm boards and it helped a bit.
(use non conductive adhesive unless you are sure heatsink is only covering GROUND via's)

My best air cooled success previously was making an air tunnel for high airflow above and below PCB.
http://i.imgur.com/9PZ95M8.jpg

Since I had Saturns I had fans aplenty.
For nep will need more fans than whats delivered.

I threw some 6mm standoff extensions on a nep and it looks like it will have little effect as there is no way for fan air to get under there even with it raised a bit. There is also heatsink foam under PCB BTW.
I have not compared results yet as I don't expect to notice.


YMMV
Smiley

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June 28, 2014, 09:44:55 AM
 #36173

The OCT and Nov units also ran the VRMs very hot
It seems that the parts are better than advertised.

If you look at the bottom of PCB can see some ground via's directly below VRM.
Ideal location for small heatsinks.

I JB welded some to one of my 28nm boards and it helped a bit.
(use non conductive adhesive unless you are sure heatsink is only covering GROUND via's)

My best air cooled success previously was making an air tunnel for high airflow above and below PCB.
http://i.imgur.com/9PZ95M8.jpg

Since I had Saturns I had fans aplenty.
For nep will need more fans than whats delivered.

I threw some 6mm standoff extensions on a nep and it looks like it will have little effect as there is no way for fan air to get under there even with it raised a bit. There is also heatsink foam under PCB BTW.
I have not compared results yet as I don't expect to notice.


YMMV
Smiley

I'm working right now on some modifications (I have raised the BCP 20 mm already and built a Fan beneath it {pointing upwards}), also have large heatsinks for VRM's and a wind tunnel with additional Fans on the backside of the box.....  but I doubt It will lower the VRM temps below 80 C...
Later today I post some result.
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June 28, 2014, 10:40:45 AM
 #36174

Avenger, good to see you are still trolling this thread. I know you guaranteed many times that nobody would get a neptune before the end of Q2, but here we are again and KNC is shipping.

Get a life, move on from this thread.
They managed to ship one unit by June 22nd, 8 days from the end of Q2, so I wasn't far wrong. They'll still be shipping well into Q3 by the looks of it, so they will not meet their Q2 obligations.

If they kept to their word and shipped one month apart between batch 1 & batch 2, they'd miss the Q2 deadline by a month.

People's expectations of knc are so low they don't even complain:
1. No newsletter updates for 11 days, during the peak of shipping, to let customers know what's going on. Pathetic.
2. KNC lied about shipping one month between batch 1 & batch 2. Batch 1 customers should be furious, as they are getting nothing extra for their early investment. As Edgar calls it, the customer humiliation batch just keeps getting more humilating. Those guys who bought the $13k rigs must feel pretty cheated right now, seeing as people who paid $3000 less will have their rigs a few days later  Grin
3. Very poor product design. Penny pinching at every opportunity, as Elenelen's post above one again reinforces. Chips to measure temperature as far away as possible from the board, so people can see "hey my boards are only 65C, that's not so bad!". I'm still waiting on someone with a thermal imaging camera to get right in there on one of these hot boxes and give us the real numbers.
4. 90 day warranty for Neptunes! That's the biggest joke of all. The same warranty for secondhand/used goods. With all the cheap components knc are using and the excessive heat these components are running at, it'll be a miracle if they are still running in 3-4 months time. And KNC are, as usual, making the RMA process as DIFFICULT AS POSSIBLE. They are telling people to return DOA/faulty stuff, but not sending them UPS labels to cover the return shipping until customers insist on it. And you can be sure when knc are building their own boards for their datorhall No 2 & 3 & 4, they will be using top quality components and doing rigourous testing. For their competition (i.e. customers), not so much.
5. People who don't have their rigs by 30th June - demand the free hashing package knc promised in February. It has nothing to do with the 241 or HWYW - it was a commitment from KNC to compensate customers if there were "any delays". Will this happen? Or will people just roll over and wait for their knc masters to ship them a rig whenever it suits knc?

DickJames, you have only posted in this thread one time in the last 3 months and use that to take a dig at me? That's a bit sad.

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June 28, 2014, 11:53:58 AM
 #36175

Corsair awful pus
Only 2.3 th from Neptune
Because of pus

F......ll
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June 28, 2014, 12:47:09 PM
 #36176

Avenger, good to see you are still trolling this thread. I know you guaranteed many times that nobody would get a neptune before the end of Q2, but here we are again and KNC is shipping.

Get a life, move on from this thread.
They managed to ship one unit by June 22nd, 8 days from the end of Q2, so I wasn't far wrong. They'll still be shipping well into Q3 by the looks of it, so they will not meet their Q2 obligations.

If they kept to their word and shipped one month apart between batch 1 & batch 2, they'd miss the Q2 deadline by a month.

People's expectations of knc are so low they don't even complain:
1. No newsletter updates for 11 days, during the peak of shipping, to let customers know what's going on. Pathetic.
2. KNC lied about shipping one month between batch 1 & batch 2. Batch 1 customers should be furious, as they are getting nothing extra for their early investment. As Edgar calls it, the customer humiliation batch just keeps getting more humilating. Those guys who bought the $13k rigs must feel pretty cheated right now, seeing as people who paid $3000 less will have their rigs a few days later  Grin
3. Very poor product design. Penny pinching at every opportunity, as Elenelen's post above one again reinforces. Chips to measure temperature as far away as possible from the board, so people can see "hey my boards are only 65C, that's not so bad!". I'm still waiting on someone with a thermal imaging camera to get right in there on one of these hot boxes and give us the real numbers.
4. 90 day warranty for Neptunes! That's the biggest joke of all. The same warranty for secondhand/used goods. With all the cheap components knc are using and the excessive heat these components are running at, it'll be a miracle if they are still running in 3-4 months time. And KNC are, as usual, making the RMA process as DIFFICULT AS POSSIBLE. They are telling people to return DOA/faulty stuff, but not sending them UPS labels to cover the return shipping until customers insist on it. And you can be sure when knc are building their own boards for their datorhall No 2 & 3 & 4, they will be using top quality components and doing rigourous testing. For their competition (i.e. customers), not so much.
5. People who don't have their rigs by 30th June - demand the free hashing package knc promised in February. It has nothing to do with the 241 or HWYW - it was a commitment from KNC to compensate customers if there were "any delays". Will this happen? Or will people just roll over and wait for their knc masters to ship them a rig whenever it suits knc?

DickJames, you have only posted in this thread one time in the last 3 months and use that to take a dig at me? That's a bit sad.



Batch 2 always had q2/q3 on the delivery estimate. Nice try.


... but here's something you can "tear apart"...



hosted conversions currently getting sodomized.


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The Avenger
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June 28, 2014, 01:11:29 PM
 #36177

Batch 2 always had q2/q3 on the delivery estimate. Nice try.

Wrong. As usual. Ungrateful moron. Their Batch 3 ads were promising Q2 delivery:

Just to remind some people, I reported KNC were running this banner on google in February:

KnCMiner 3+ TH/s Bitcoin - kncminer.com‎
Ad www.kncminer.com/bitcoin/miner‎
Neptune Miner Pre-order for $9,995Shipment begins in Q2 of 2014

So every order they took b4 February *has* to ship before Q2 ends, right?

I also told you not to reply to any of my posts:

lies and wank
Go fuck yourself criminal. Do not reply to any of my posts unless it's send the 40BTC bounty you promised to the people who got your stolen coins back.

So don't, you ungrateful thief. Me and a few other people got your entire life savings of bitcoin back after you were scammed. Most people who get scammed never see a penny returned.

You should be eternally grateful and thankful to the people who helped you. Instead, you are a dick.

"I am not The Avenger"
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June 28, 2014, 01:29:39 PM
 #36178

Batch 2 always had q2/q3 on the delivery estimate. Nice try.

Wrong. As usual. Ungrateful moron. Their Batch 3 ads were promising Q2 delivery:

Just to remind some people, I reported KNC were running this banner on google in February:

KnCMiner 3+ TH/s Bitcoin - kncminer.com‎
Ad www.kncminer.com/bitcoin/miner‎
Neptune Miner Pre-order for $9,995Shipment begins in Q2 of 2014

So every order they took b4 February *has* to ship before Q2 ends, right?

I also told you not to reply to any of my posts:

lies and wank
Go fuck yourself criminal. Do not reply to any of my posts unless it's send the 40BTC bounty you promised to the people who got your stolen coins back.

So don't, you ungrateful thief. Me and a few other people got your entire life savings of bitcoin back after you were scammed. Most people who get scammed never see a penny returned.

You should be eternally grateful and thankful to the people who helped you. Instead, you are a dick.

this has to be reiterated

+1

the only reason eric got his coin back was due to the sheer hard work of the community, both in usurping the scammer and making relevant reports to the authorities in the UK about it.

tips    1APp826DqjJBdsAeqpEstx6Q8hD4urac8a
user27
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June 28, 2014, 01:31:21 PM
 #36179

I justed finished my Neptun Project. Corsair 1200i is working very well per 3 modules. Is over 30 TH now Tongue
https://dl.dropboxusercontent.com/u/5752741/neptuny/zdj_cie%201.JPG
https://dl.dropboxusercontent.com/u/5752741/neptuny/zdj_cie%204.JPG
https://dl.dropboxusercontent.com/u/5752741/neptuny/zdj_cie%203.JPG

But now i have a lot die issue. Who have experience with that ?

Looking good Tom; nice configuration.

Are you just connecting two PCI-e per box to get around the 20A default safety limit on the AX1200i (that's what it looks like in the pic's) or have you managed to save the 40A settings to the PSU?

Thanks, u27

Elenelen
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June 28, 2014, 01:36:12 PM
 #36180

I'm working right now on some modifications (I have raised the BCP 20 mm already and built a Fan beneath it {pointing upwards}), also have large heatsinks for VRM's and a wind tunnel with additional Fans on the backside of the box.....  but I doubt It will lower the VRM temps below 80 C...
Later today I post some result.


OK, I have a modified-DIY-box below 70 C and running on 500 Mhz:



How do I get above 500 Mhz ?
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