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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3008444 times)
Searing
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October 11, 2013, 03:02:19 AM
 #14721

Has anyone tried the push/pull method by adding fans to the heatsinks on the free side, is there enough room with the cover on? That should increase airflow quite a bit.

I think the consensus is you take the cover off you find the 1x or more boards that seem to be hot...you then take fan an point it directly at hot unit.....and another fan a bit away from the miner to move air away from the box entirely....and/or find a "cold' basement as well (Minnesota)

Does the above seem to be the consensus on what to do 'so far' till the firmware gets fixed or other issues are dealt with?

Searing

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October 11, 2013, 03:03:49 AM
 #14722

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?
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October 11, 2013, 03:04:20 AM
 #14723

Has anyone tried the push/pull method by adding fans to the heatsinks on the free side, is there enough room with the cover on? That should increase airflow quite a bit.

I think the consensus is you take the cover off you find the 1x or more boards that seem to be hot...you then take fan an point it directly at hot unit.....and another fan a bit away from the miner to move air away from the box entirely....and/or find a "cold' basement as well (Minnesota)

Does the above seem to be the consensus on what to do 'so far' till the firmware gets fixed or other issues are dealt with?

Searing

yes

this was my quick fixes the day I got them which led my miners to go from ~420 Gh to ~520 Gh which more than paid for the run to Kmart for fans

https://bitcointalk.org/index.php?topic=306969.msg3316237#msg3316237


so now I have lids off to measure modifications and can plan to cool it way better before I put them back on

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October 11, 2013, 03:06:14 AM
 #14724

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

hmm...if you have a really bad board/chip arrangement is this something that should be considered?

or would you void warranty? (i'd guess yes)

curious need some guy with 'modding' experience to see if something equiv  or better then the arctic i30 heatsink is worth doing?

Searing

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demonmaestro
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October 11, 2013, 03:07:58 AM
 #14725

Has anyone tried the push/pull method by adding fans to the heatsinks on the free side, is there enough room with the cover on? That should increase airflow quite a bit.

Squid Girl... should know all.  Grin

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October 11, 2013, 03:09:14 AM
 #14726

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

hmm water cooling...  Shocked  Cool I think i am going to do that.

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October 11, 2013, 03:10:13 AM
 #14727

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

hmm water cooling...  Shocked  Cool I think i am going to do that.

or, you can just buy a HashFast.
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October 11, 2013, 03:17:32 AM
 #14728

well im waiting on my knc first.

also does anyone have the link to the heatsink setup they are currently using. I could not find it under search.

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October 11, 2013, 03:20:46 AM
 #14729



hmm water cooling...  Shocked  Cool I think i am going to do that.
[/quote]

or, you can just buy a HashFast.
[/quote]


Well I don't need another girlfriend..ie ...I'm still paying thru the nose for the ex-wife BFL (the skank took me for everything) ..the new girlfriend KNC seems spunky enough but she is kinda a flake on being on time...but then again I've heard she gives great GH.....as to Hashfast...well.....alas.....no $$$ no desire.....no hope on that...I'm tap'd out Smiley

Searing

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October 11, 2013, 03:22:21 AM
 #14730



Well I don't need another girlfriend..ie ...I'm still paying thru the nose for the ex-wife BFL (the skank took me for everything) ..the new girlfriend KNC seems spunky enough but she is kinda a flake on being on time...but then again I've heard she gives great GH.....as to Hashfast...well.....alas.....no $$$ no desire.....no hope on that...I'm tap'd out Smiley

Searing

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October 11, 2013, 03:27:14 AM
 #14731

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

Well those are standard heatsinks made to fit AMD and Intel CPUs.  I don't see why you couldn't slap 4 Corsair H80s in there to replace the existing heatsinks.

On sale at Newegg for $79!
http://www.newegg.com/Product/Product.aspx?Item=N82E16835181031

Who's brave enough to be there first to try?   Grin
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October 11, 2013, 03:34:50 AM
 #14732

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

Well those are standard heatsinks made to fit AMD and Intel CPUs.  I don't see why you couldn't slap 4 Corsair H80s in there to replace the existing heatsinks.

On sale at Newegg for $79!  http://www.newegg.com/Product/Product.aspx?Item=N82E16835181031

Who's brave enough to be there first to try?   Grin


ok there are "some" folks on here with only 1 really bad board/chip...who prob don't want to RMA yet.......I mean a few of them I think have "really bad" hash on that board like 176gh or some such...they'd be the "target audience" to try this imho...if it was me in that situation i'd probably be game....but then again according to bitcoinrama this stuff is all a "firmware" issue so maybe not worth the effort....a toss up imho

my 2c worth (likely not worth that)

Searing

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October 11, 2013, 03:40:30 AM
 #14733

I'm thinking of buying 2x 140mm fans and just put them with cables ties on the outside of the case at the rear (exhaust side), so they can help a little bit with removing the hot air.

The pre-installed fans at the front of the case are intake fans?!  Are you sure?  That would be very poor design if true.  I assumed they were exhaust fans.

But yes, I think it's an excellent idea to install fans on both ends of the case in a push-pull configuration.

Yes, intake. I think it is better that they are intake as there are no other fans to supply fresh air into the case. Adding a second set on the other end to exhaust will probably improve the airflow and the temps:



Thanks for clarifying that!

Well, no wonder these things are overheating and bursting into flames!  Lol.  How could someone design this simple case and NOT include exhaust fans.  With all of those heatsink fans blowing air around and causing turbulence, I can't imagine the case is adequately exchanging air.

bwahaha!

water cooling anyone?

Well those are standard heatsinks made to fit AMD and Intel CPUs.  I don't see why you couldn't slap 4 Corsair H80s in there to replace the existing heatsinks.

On sale at Newegg for $79!  http://www.newegg.com/Product/Product.aspx?Item=N82E16835181031

it's really too bad you guys are having to go thru all this trial and error to make up for what KNC should've taken care of.

in HF's case, they hired the water cooling company itself to do heat simulations using all the Babyjet parts except for the actual chip itself.  they used a heating element to put out 250 W of nominal heat production to make sure the cooler could handle that first.  then they took the wattage up to 350 W of heat to make sure the cooler could handle that amount at what is meant to be an overclocked situation.  no problems according to the results from the water cooling company.  they may have even taken it higher but don't quote me on that.  i won't bother to tell you what hashing rate that took the chip up to b/c HF doesn't want to overpromise but it would knock your socks off.
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October 11, 2013, 03:40:53 AM
 #14734

http://www.xoxide.com/h2o-x20edgehdserieswatercoolingkit-triple120mmblack.html

Oooo yea. Giggidy

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October 11, 2013, 03:42:54 AM
 #14735



on a side note I had a "thought" probably a lame thought...but with the folks taking the cover off...I was wondering about the 'standoff' method used to attach the boards and as such heatsinks etc how they are attached to the bottom of the miner plate:?

ie was thinking you could get an extender if they are screw in standoffs and just raise the whole board and heatsink unit up like 2" or some such with such a standoff plug

thus increasing airflow underneath....shoot a usb fan on the side blow the hot air away underneath

or am I just being silly (likely?)

(Damnit Sam I'm a KNC miner...not a aeronautical physics major on airflow!!!) using best Dr. McCoy Star Trek voice.

my 2c worth

Searing


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October 11, 2013, 03:44:35 AM
 #14736

now it is dusk or "Sundown", and the temps in the coolbox are dropping, the 0.94 firmware still allows me to get a solid 275-280 atm, ill report back as temps drop in da box(ambient from outside air from boxfans) its about 68degrees ferenheit right now, where it was 80 during the day. It should drop to about 55-60 during the night.


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Searing
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October 11, 2013, 03:45:13 AM
 #14737

any new order # ready for UPS delivery (think we shall reach until #3000 today) ?


hoo boy I hope you are correct (my Jupiter is 304x)...my Saturn alas is like 520x...

must temper expectations ie (its a trap!)

Searing

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October 11, 2013, 03:47:09 AM
 #14738


holy crap if it was a "cooling' issue on the chips this sure would take care of it imho


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demonmaestro
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October 11, 2013, 03:49:04 AM
 #14739


holy crap if it was a "cooling' issue on the chips this sure would take care of it imho



or this could be fun
http://www.xoxide.com/nofancr-95cicepipefanlesscpucooler-copper.html


that is why i want to know what is the exact heatsink system they are using.

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October 11, 2013, 03:50:40 AM
 #14740


it's really too bad you guys are having to go thru all this trial and error to make up for what KNC should've taken care of.

in HF's case, they hired the water cooling company itself to do heat simulations using all the Babyjet parts except for the actual chip itself.  they used a heating element to put out 250 W of nominal heat production to make sure the cooler could handle that first.  then they took the wattage up to 350 W of heat to make sure the cooler could handle that amount at what is meant to be an overclocked situation.  no problems according to the results from the water cooling company.  they may have even taken it higher but don't quote me on that.  i won't bother to tell you what hashing rate that took the chip up to b/c HF doesn't want to overpromise but it would knock your socks off.

See how I can just quote the bit of post I am addressing, without moronically making each post 19 feet long and unfortunately missing out on the joy of staring at the same airflow picture 35 more times?

You're welcome.

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