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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3011456 times)
tzortz
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June 21, 2014, 05:23:05 PM
 #35541

I had checked it in the past, they are temp sensors.

VRMs of Ericsson, say 125C as max but they shut down way before, at 100C.

I had blown at least 3-4 of them because of overheat.

Nowhere close to 125C as mentioned by the manufacturer.

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crashoveride54902
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June 21, 2014, 05:29:40 PM
 #35542

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll

Take my warning as just that...upto you to figure out what is best for your unit Smiley

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June 21, 2014, 05:34:51 PM
 #35543

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll
I concur.... and remember same. those things act like blankets
It may be best to remove every one of them, and re-attach the plate so it DOES contact ALL VRM's with paste
Die-electric compound on all the pci connections may save you trouble as well. http://www.amazon.com/Permatex-22058-Dielectric-Tune-Up-Grease/dp/B000AL8VD2/ref=sr_1_1?ie=UTF8&qid=1403372942&sr=8-1&keywords=dielectric+compound


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s1gs3gv
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June 21, 2014, 05:46:12 PM
 #35544

Here is a datasheet for a typical remote diode temperature management/fan control IC.

http://www.ti.com/lit/ds/symlink/lm96063.pdf

Note: "The LM96063 is remote diode temperature sensors with integrated fan control that includes remote diode sensing. The LM96063 accurately measures: (1) its own temperature and (2) the temperature of a diode- connected transistor, such as a 2N3904, or a thermal diode commonly found on Computer Processors, Graphics Processor Units (GPU) and other ASIC's."

These type of devices typically integrate with an on die thermal diode.

On the issue of BRM46x thermal design constraints, the spec says 125 C. Not 100 C, not 105 C. Looking at the data sheet, it looks like the device temperature is reported via the PMBus and may also be subject to configuration via a configuration file:

"This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionality and performance of the product. The Electrical Specification table shows parameter values of functionality and performance with the default configuration file, unless otherwise specified. The default configuration file is designed to fit most application needs with focus on high efficiency. If different characteristics are required it is possible to change the configuration file to optimize certain performance characteristics. Note that current sharing operation requires changed configuration file. See application notes AN307 for further information."

Is anyone having problems with Neptune's shutting down due to thermal issues or is this yet more FUD being spread by haters and envious ne'er do wells towards KNC ?



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June 21, 2014, 05:51:29 PM
 #35545

Is anyone having problems with Neptune's shutting down due to thermal issues or is this yet more FUD being spread by haters and envious ne'er do wells towards KNC ?

Anyone who? Only 1 Neptune is in the wild!

iCEBREAKER is a troll! He and cypherdoc helped HashFast scam 50 Million $ from its customers !
H/w Hosting Directory & Reputation - https://bitcointalk.org/index.php?topic=622998.0
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June 21, 2014, 05:54:41 PM
 #35546

I am so curious to know how many of those finally left their Datacenter ,er ,warehouse for delivery.
Well this guy got his:
https://bitcointalk.org/index.php?topic=170332.msg7415397#msg7415397

And then bitcoinorama xstr8guy got his
http://forum.kncminer.com/forum/main-category/hardware/46873-first-received-neptune

No wait, he was just talking about the first guy.

So on record we have a massive 1/1200 shipped.

Once again, well done knc for not misleading customers and completely keeping the misleading bullshit commitment lying you made 2 days ago to ship all Batch 1 this week.

We salute your integrity!

I had my team span out to all the UPS/FexeX ports and steal any boxes coming from KNC.

Need help with your Newznab usenet indexer? http://www.newznabforums.com
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June 21, 2014, 05:55:40 PM
 #35547

These components are about 2 to 3 inches away from the chip and the temperature reading is 58C  Shocked

Can you even imagine how hot that chip is in it's core?

That far away from the chip, the readings are almost useless.



If those are in fact temperature management/fan control chips they are almost certainly sensing temperature via connection to an on-die temperature diode. See my earlier comments on how these temperature management chips actually work.

Get a life AVNGR. Go throw a cat off a roof or whatever you do for fun on the weekends.

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June 21, 2014, 05:58:35 PM
 #35548

Is anyone having problems with Neptune's shutting down due to thermal issues or is this yet more FUD being spread by haters and envious ne'er do wells towards KNC ?

Anyone who? Only 1 Neptune is in the wild!

I figured you'd be lurking somewhere nearby RoadStress … you are never late to a KNC FUD party and your merry band 'o gentlemen can not be far behind. Now that we have OKAVNGR and RS in play, where is the raskul when you need him ?

If we want to start discussing bitcoin miners that you could cook breakfast on, lets start with that howler the SP10.
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June 21, 2014, 06:03:03 PM
 #35549

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll

Are you willing compensate Neptune owners for the damage that may occur resulting from people taking your advice ?
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June 21, 2014, 06:04:58 PM
 #35550

Is anyone having problems with Neptune's shutting down due to thermal issues or is this yet more FUD being spread by haters and envious ne'er do wells towards KNC ?

Anyone who? Only 1 Neptune is in the wild!

I figured you'd be lurking somewhere nearby RoadStress … you are never late to a KNC FUD party and your merry band 'o gentlemen can not be far behind. Now that we have OKAVNGR and RS in play, where is the raskul when you need him ?

If we want to start discussing bitcoin miners that you could cook breakfast on, lets start with that howler the SP10.

SP10 is out of stock so any talk about it at this point is useless. How many Neptunes are you waiting?

iCEBREAKER is a troll! He and cypherdoc helped HashFast scam 50 Million $ from its customers !
H/w Hosting Directory & Reputation - https://bitcointalk.org/index.php?topic=622998.0
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June 21, 2014, 06:15:39 PM
 #35551

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 ?


There is no way to read anything on those VRM-boards: completely covered with the aluminum plate.

For quite sometime I ran the system in factory-default: but 3 of the boxes have high temps on the first VRM (about 106 C). This is partly because of the position of the boxes in my server-room (re-arranging them gives high temps on other devices), and partly because the aluminum plate isn't pressing equally on all the VRM's (especially the first VRM on all boxes has problems) >> So I screw the plate tighter on that side (which worked quite well).

 Still... I have tuned down a few VRM's to 450 Mhs instead of 475, for the time being (I will buy some additional Fans to solve this).

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June 21, 2014, 06:20:41 PM
 #35552

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll

Are you willing compensate Neptune owners for the damage that may occur resulting from people taking your advice ?

point taken, didn't think about that...edited my post, Thanks

Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks Sad
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June 21, 2014, 06:21:58 PM
 #35553

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll

That's not easy at all. ... This because the large aluminum plate has an |_|_| shape (3 fingers).  The middle-finger is holding the Tower, the rest is shaped over the VRM's......  removing the plate, needs some other plate to fasten the Tower.
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June 21, 2014, 06:26:45 PM
 #35554

i urge all neptune miners to not use the grey thermal pad n metal thing on top...i'm willing to guess that this will fry out your vrms way quicker...i left that grey pad on my nov. mods and oc'd it and the smd caps are now almost black...so imagine what this will do to your unit with even higher power vrms and heat...just a warning to ya'll

That's not easy at all. ... This because the large aluminum plate has an |_|_| shape (3 fingers).  The middle-finger is holding the Tower, the rest is shaped over the VRM's......  removing the plate, needs some other plate to fasten the Tower.

well after a few days, keep an eye on the smd caps and see if i'm right or not Smiley not trying to spread FUD, just trying to help ppl not fry out their expensive units...it wouldn't surprise me none that knc tested these units and saw this is what was gona happen and shipped them like it anyways...

Dreams of cyprto solving everything is slowly slipping away...Replaced by scams/hacks Sad
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June 21, 2014, 06:35:29 PM
 #35555

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 ?


There is no way to read anything on those VRM-boards: completely covered with the aluminum plate.



Not the VRM boards, the two 8 pin packages near the edge of the board please. They are in plain sight in the recent photo posted here ( https://bitcointalk.org/index.php?topic=170332.msg7436143#msg7436143 )
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June 21, 2014, 06:47:02 PM
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The only reason I didn't refund my $10k was both cloud hashing and the second Neptunes.

If this is true! Cancel my cloud hashing!

I regret not refunding, I'll never make my money back at this point.

I didn't ask for refund because of the same reasons as yours. Even though it is difficult to get back the refund with both cloud hashing and second neptune, I treated KnC's previous announcements as a positive sign to care for the customers. I didn't expect they will f--- the customers like this!

I don't get it. You can still refund Monday if you like, so why don't you? It may take a few weeks, but KnC will always honor refund requests as long as you make the request before the item ships.

New to this forum, waiting for a batch 2 Neptune
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June 21, 2014, 06:47:10 PM
 #35557

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 ?


There is no way to read anything on those VRM-boards: completely covered with the aluminum plate.



Not the VRM boards, the two 8 pin packages near the edge of the board please. They are in plain sight in the recent photo posted here ( https://bitcointalk.org/index.php?topic=170332.msg7436143#msg7436143 )

OK, next time I will stop Neptune, and screw one box open, I will try...  Right now I have just started the system, after a full day of tinkering...
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June 21, 2014, 06:55:08 PM
 #35558

after a full day of tinkering...
What sort of tinkering?

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June 21, 2014, 07:06:44 PM
 #35559


The only reason I didn't refund my $10k was both cloud hashing and the second Neptunes.

If this is true! Cancel my cloud hashing!

I regret not refunding, I'll never make my money back at this point.

I didn't ask for refund because of the same reasons as yours. Even though it is difficult to get back the refund with both cloud hashing and second neptune, I treated KnC's previous announcements as a positive sign to care for the customers. I didn't expect they will f--- the customers like this!

I don't get it. You can still refund Monday if you like, so why don't you? It may take a few weeks, but KnC will always honor refund requests as long as you make the request before the item ships.

Not really. From their point of view once they start shipping en masse all refund request are to be denied.
It doesn't matter if yours is still to be shipped or not.
Another thing that makes them huge assholes.

If this post helped you and you feel generous you know what to do: 1P9tXFy9bVgzrfPGeV7F8np26ZtFdCCWvz
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June 21, 2014, 07:27:52 PM
 #35560


The only reason I didn't refund my $10k was both cloud hashing and the second Neptunes.

If this is true! Cancel my cloud hashing!

I regret not refunding, I'll never make my money back at this point.

I didn't ask for refund because of the same reasons as yours. Even though it is difficult to get back the refund with both cloud hashing and second neptune, I treated KnC's previous announcements as a positive sign to care for the customers. I didn't expect they will f--- the customers like this!

I don't get it. You can still refund Monday if you like, so why don't you? It may take a few weeks, but KnC will always honor refund requests as long as you make the request before the item ships.

"few weeks"

Kinda lol'd at that
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