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Topic: Swedish ASIC miner company kncminer.com - page 78. (Read 3049514 times)

legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
Lets see if anyone else has issues. I was able to upgrade from many different versions include Kncminer official 2.0 and V.98 . Both went flawless.

Vegas
sr. member
Activity: 342
Merit: 250
GenTarkin that's how I think about it too, HOWEVER I have seen when the thermal paste is applied incorrectly then gets a bad temp reading and when fixed it improves the reading on vrms??    why I don't know, since they are physically separate

maybe the temp reported in dc/dc is an avg of 2 temp sensors, 1 on the chip the other on vrm?? so replacing thermal paste and applying heatsinks to vrm will both improve the temp readings??

legendary
Activity: 2450
Merit: 1002
Ok so ive mapped the die locations. see pic. The readings to the far right of the screen are the temps for the dies and NOT the vrms. There are no temps for the vrms.

I turned off all the dies except 2 dies at a time. I then use my thermal laser gun to find the only hot spot on the plate, that told me where the dies where. Anyway here you go:







That makes no sense. The board is clearly not laid out that way. It has 4 dies & 2 VRM's per die.
It would be extremely odd if each die had 2 internal temp sensors. It makes more sense that each VRM has a temp sensor.

After looking at the docs for those DCDC's, they do have internal temperature monitors and they are read over pmbus. Im almost certain this is the data thats polled for DCDC temp's we see in webgui.
legendary
Activity: 2450
Merit: 1002
UPDATE, small error found in previous v.99 upgrade. For anyone that has updated so far, please reapply the .bin found here:
https://github.com/GenTarkin/Titan/releases/tag/v.99

BTW, as of now the enable / disable lighttpd option under SYSTEM tab works =)

how long should it take when upgrading 2.00 ver??
I am looking for 2 hours at this line
Quote
System upgrade in progress
Copying files... files copied No wget found, syncing apt & installing wget Syncing apt-get...

Can I refresh a page or smth?

It should only take a good 5mins or so... Not 2 hrs unless ur inet is shit or your SD card is dead or ur inet is crap to the pi. If its hanging there that means apt-get is failing to sync & download wget. =(
If thats happening to a lot of installs, I may have to rethink the whole upgrade process.
All I can say is hit browser back button and try upgrading w/ the .bin file again.
legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
umm.. ok.. and back to our regularly scheduled program.... So Ill try a few other things today and post my findings.

Vegas
sr. member
Activity: 388
Merit: 250
ELYSIAN | Pre-TGE 5.21.2018 | TGE 6.04.2018
So everyone here is  happy that they used  peoples  funds to fund  their  own  server farms  making your  hardware next  to useless then!

And  all you who got 'cheap' off ebay say i didn't get ripped off. NO! you just support  a  company that is  rougue and on the misery of  others!

Your  ALL SCUM! And  this is why you fucktards will fall   for this XT BUllshit. How hard is it start nodes for  XT to get 75%. Especially wwhen your in bed with the  BTC  Foundation scum bags!

While  someone  who gets it  like Amir Taki gets shunned! Fucking dumbed down  sheep, ALL OF  YOU!
legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
Quote
Just so it is on this thread someplace I have to say the following : Ahem Smiley

"My god man do you have BIG BRASS ONES IMHO...sheesh........"

Ok just figured someone had to say it in that ..if you guys are like me .. I rarely make direct eye contact with my Titan(s) in case they become offended and brick
themselves into door stop status...I mean MAJOR SURGERY the mind boggles Smiley

Ohh ya, in case I wasnt clear, I will be removing the center plate to examine the cores from a mostly working cube today. Has .8v on dies 0 and 1. Will any of this void my warranty?  LOL

Update: Center plate removed. This was from a from a cube that had .8v on die 0 and 1. As you can see what WAS thermal grease is now just dried dust. So the question on everyones mind is: What will happen, if I clean and regrease the cores? Give me some time and Ill let you know, today. Do NOT attempt this!!! WAIT for the video! There are MANY wrong ways to do this and 1 right way. Do it wrong and you have a dead cube!!



Vegas

Update: cleaned and regreased cores. Did NOT fix the .8v dies. Sad So what this looks like is that core is permanently damaged, due to overheating. I have one last thing I want to try to bring that core back to life. Ill report back soon. There IS a silver lining, it DID reduce the temps on the working cores to the very low 50c, and some dies were even in the high 40c .



Temps after regrease of cores and all my mods applied.
legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
They were, sort of - depends very much on who you ask and their personal experiences.  Suffice to say there were enough with a bad personal experience, mostly in problems with hardware, that eventually they got a (justifiably) bad rep and their response instead of addressing the issues has largely been to just ditch this forum and eventually even ditched their own forum; not exactly exemplary of paying attention to the community, including paying customers.

While I disagree with how they've been operating, it's their business and as long as people who feel they were wronged aren't taking legal action (the cases that are supposedly ongoing are ongoing like snails - though that's the legal system for you) and they are still somewhat forthcoming to customers (somebody needed a file recently, they asked and received, iirc), and are continuing their business even in modified form, they're already better than BFL.  Admittedly not the most favorable of yardsticks to be measured against.

Yeah, that´s why BITMAIN has more or less the monopol on SHA-256 ASIC  Roll Eyes

Yes, Ive ordered LOADS of miners from Bitmain, and they are awesome!! Never an issue!!
legendary
Activity: 1008
Merit: 1001
They were, sort of - depends very much on who you ask and their personal experiences.  Suffice to say there were enough with a bad personal experience, mostly in problems with hardware, that eventually they got a (justifiably) bad rep and their response instead of addressing the issues has largely been to just ditch this forum and eventually even ditched their own forum; not exactly exemplary of paying attention to the community, including paying customers.

While I disagree with how they've been operating, it's their business and as long as people who feel they were wronged aren't taking legal action (the cases that are supposedly ongoing are ongoing like snails - though that's the legal system for you) and they are still somewhat forthcoming to customers (somebody needed a file recently, they asked and received, iirc), and are continuing their business even in modified form, they're already better than BFL.  Admittedly not the most favorable of yardsticks to be measured against.

Yeah, that´s why BITMAIN has more or less the monopol on SHA-256 ASIC  Roll Eyes
legendary
Activity: 1008
Merit: 1001
is there a chance that KNC comes up with a affordable miner for home miners
There's always a chance.  It's just highly unlikely given how they've burned consumers, have issued news releases indicating that they've moved away from physical sales and are transitioning away even from cloud mining contracts, and the general headache they would be returning to if they did.

Ok thanks, it seems KNC was a legit company....

A legit company?!?

Vegas

The BOLD is one WAS if they ever WHERE  Shocked
hero member
Activity: 686
Merit: 500
FUN > ROI
They were, sort of - depends very much on who you ask and their personal experiences.  Suffice to say there were enough with a bad personal experience, mostly in problems with hardware, that eventually they got a (justifiably) bad rep and their response instead of addressing the issues has largely been to just ditch this forum and eventually even ditched their own forum; not exactly exemplary of paying attention to the community, including paying customers.

While I disagree with how they've been operating, it's their business and as long as people who feel they were wronged aren't taking legal action (the cases that are supposedly ongoing are ongoing like snails - though that's the legal system for you) and they are still somewhat forthcoming to customers (somebody needed a file recently, they asked and received, iirc), and are continuing their business even in modified form, they're already better than BFL.  Admittedly not the most favorable of yardsticks to be measured against.
legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
is there a chance that KNC comes up with a affordable miner for home miners
There's always a chance.  It's just highly unlikely given how they've burned consumers, have issued news releases indicating that they've moved away from physical sales and are transitioning away even from cloud mining contracts, and the general headache they would be returning to if they did.

Ok thanks, it seems KNC was a legit company....

A legit company?!?

Vegas
legendary
Activity: 1008
Merit: 1001
is there a chance that KNC comes up with a affordable miner for home miners
There's always a chance.  It's just highly unlikely given how they've burned consumers, have issued news releases indicating that they've moved away from physical sales and are transitioning away even from cloud mining contracts, and the general headache they would be returning to if they did.

Ok thanks, it seems KNC was a legit company....
hero member
Activity: 686
Merit: 500
FUN > ROI
is there a chance that KNC comes up with a affordable miner for home miners
There's always a chance.  It's just highly unlikely given how they've burned consumers, have issued news releases indicating that they've moved away from physical sales and are transitioning away even from cloud mining contracts, and the general headache they would be returning to if they did.
legendary
Activity: 1008
Merit: 1001
Hy Guys,
is there a chance that KNC comes up with a affordable miner for home miners since bitmain launched their Antminer S7?

Kind regards,
elrippo
legendary
Activity: 1610
Merit: 1003
"Yobit pump alert software" Link in my signature!
Quote
Just so it is on this thread someplace I have to say the following : Ahem Smiley

"My god man do you have BIG BRASS ONES IMHO...sheesh........"

Ok just figured someone had to say it in that ..if you guys are like me .. I rarely make direct eye contact with my Titan(s) in case they become offended and brick
themselves into door stop status...I mean MAJOR SURGERY the mind boggles Smiley

Ohh ya, in case I wasnt clear, I will be removing the center plate to examine the cores from a mostly working cube today. Has .8v on dies 0 and 1. Will any of this void my warranty?  LOL

Update: Center plate removed. This was from a from a cube that had .8v on die 0 and 1. As you can see what WAS thermal grease is now just dried dust. So the question on everyones mind is: What will happen, if I clean and regrease the cores? Give me some time and Ill let you know, today. Do NOT attempt this!!! WAIT for the video! There are MANY wrong ways to do this and 1 right way. Do it wrong and you have a dead cube!!



Vegas
newbie
Activity: 2
Merit: 0
https://www.youtube.com/watch?v=O-RBI4am-wY

A guide on how to easily get the temperature down on a KNC Miner Titan's Cube in under 30 minutes.

The guy talking swedish, of according to him, The Cube will run 15C degrees cooler
Interestingly, with the modification that he does on the dc / dc converter

Maybe this isn't news for you guys, but I want to share it with you

Sorry for my bad english (Im from Sweden)
newbie
Activity: 28
Merit: 0
UPDATE, small error found in previous v.99 upgrade. For anyone that has updated so far, please reapply the .bin found here:
https://github.com/GenTarkin/Titan/releases/tag/v.99

BTW, as of now the enable / disable lighttpd option under SYSTEM tab works =)

how long should it take when upgrading 2.00 ver??
I am looking for 2 hours at this line
Quote
System upgrade in progress
Copying files... files copied No wget found, syncing apt & installing wget Syncing apt-get...

Can I refresh a page or smth?
newbie
Activity: 31
Merit: 0
Woow vegas thank you good work!!!Do you think there is a way to do the same with dcdc modules to assign them with each dies? Wink
legendary
Activity: 1078
Merit: 1050

Thanks frenchy. I saw that. It doesnt say anything about the surface mount resistor size. Ive ordered that professional desoldering tool , the Hakko FR-300 because I feel strongly that I can remove the entire vrm and replace. So that tool should be in in the next few days. IF I can remove the vrms, this will help fix alot of our problems, AND we might be able to upgrade to the 50A version of the vrms Wink THAT would solve LOADS of problems!

Vegas



Just so it is on this thread someplace I have to say the following : Ahem Smiley

"My god man do you have BIG BRASS ONES IMHO...sheesh........"

Ok just figured someone had to say it in that ..if you guys are like me .. I rarely make direct eye contact with my Titan(s) in case they become offended and brick
themselves into door stop status...I mean MAJOR SURGERY the mind boggles Smiley



did you try it with 1000uf??

google says: sometimes a higher uf is acceptable, but not always ... depends on the circuit   :|   isn't 1000uf to 1500uf a pretty big jump?

Google is correct. We can make circuits for noise reduction and for another purposes. So if this is noise reduction purpose then there will be the lower limit for capacitor NOT LESS, but if it is some oscillating circuit then higher capacitor will change the frequency or amplitude.. this was our hand book Smiley http://users.physics.harvard.edu/~horowitz/aoe/

I'd try a 1000uf, afterall we are troubleshooting, have to see what works and doesn't  

here's the pic of the spreader removed

http://s18.postimg.org/py0qzeio7/1_kch2zw_Ak_GWOPBBu2o_Sg_OEg.png

looks like he used that little precision screwdriver to pry on the upper left corner, I am not saying to try it, just showing you the picture  -- I've wanted to look under there myself but don't want to risk losing a good board

and I guess that's not a Titan board, maybe a Neptune??

Ok this is a Neptune board. The BTC logo tells me that. Only Neptunes have the BTC logo on them.  I was trying to find which cores include die 0 and 1, as there are 2 dies per core. Die 0 and die 1 are by far the most troublesome, and seem to always fail. I THINK its the core on the top left corner. Can anyone confirm this? Anyone else notice in this pic that the top left core is the only one that does not have thermal grease on it? I suppose the tech could have cleaned it, but then why just clean one? Is it possible there is a fault in the design where the plate does not meet the core on the top left , which I think is contains die 0 and 1? I think the tech in this pic is showing a major fault in design, that is the reason for this pic (im guessing) .This would explain a WHOLE lot! Guys im not suggesting to remove your plates, and there is a strong possibility it will damage your cores.

Vegas

OK don't laugh but on this thread someplace someone said that they could not get an RMA on a cube of some kind (think it was a Titan but maybe not) from KNC because they
simply told him to TIGHTEN THE SCREWS down on the plate thingy (hey be careful this is 20/20 hindsight remembering here) he was like wtf? i just remember because it was such
a lame way not to do his RMA

but anyway that would go along your idea above I guess? Smiley (don't try this just tossing it out as a clue to how this stuff hangs together in case it is important for another solution)



Yeah i remember that person a few months back. If one is not keen to rma; due to costs. Generous repasting is the way to fix some issues of dies shutting down. The copper pipes are machined but what they have done is leave a small plate on there and machined it also. Thus resulting in an uneven finnish in some/most cases.

Also, i found taking off the foam from the sides because even with the screws tightened down the whole heatsink shifts extremely easy. So putting the cover back on puts pressure on that foam and moves the heatsink. The suggestion was to tighten the screws and possibly add a washer to get more leverage. (that does not void the warranty) Repasting does i think but its $24 for paste vs $200+ to RMA.

I have burnt vrm moduals on some of mine so i am not sure what to do there i do not have a de-solderer.
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