Swedish ASIC miner company kncminer.com

[The Avenger]

So of about 5 boards that burned, 2 WERE NOT HX850:

FractionalReserve (from knc forum)
We were one of those who blew a cap (actually it was our board that burned with a lot of smoke and whistles). We were runing it on a Corsair HX1050 Gold.

My power supply is a rosewill lightning.

So you come on the forum and parade some theory that HX850's are the cause of the problem, when 2/5 were not HX850.

And you give me shit when I challenge you on that??

I am not an elec engineer myself, but yes it is particular PSUs.

Oh look, when I called you on it, it became not exclusively HX850's, but "particular PSUs".

I am not an elec engineer myself

Yes, but you come on here and act like one until someone calls your bluff.

If you deal in facts, you won't have any problems with me. But if you want to trot out nonsense, I'll call you on it. If you think that's harsh, too bad. You keep claiming you are en engineer. And I'll say it again - engineers deal in facts.

Deal in facts or you'll have to deal with me calling your bluff over and over again.

[xyzzy099]

I'm running 0.93. Just tried to upgrade to 0.95, and it seems to work, but after restart the web interface still says that the current firmware revision is 0.93. I tried to upgrade (downgrade) to other versions but it's the same.

It is possible that the upgrade was successful and the web interface displays the wrong version number? Is there a way to check firmware version through ssh?

at least you can access the miner page/tab....I cant... i get "ERROR 500 Internal server error"

When I added my backup pools in CGMiner itself, I broke the web interface. I'm assuming that's the common cause for most people.

hmm, i have to physically start cgminer thru ssl because the workername was input incorrectly from the factory, which may be the cause then?...  it's catch22, because i cant change it on the gui...lol

I would guess that the configuration is still saved in a text file you can hand-edit.

is it possible to putty in twice simultaneously?

Yes.

[WastedLTC]

Previous hashrate was about 20 gh/s less.  The pool stats seem to be around 540 gh/s

I would kill for that.  After today's upgrade to .95 my hosted Jupiter still isn't able to maintain 400GH/s (I just saved the config in the UI to force it to 'restart' when it was running @ 308GH/s)

FYI..

one of my hosted units is running at 500, the other at 370.    (this is from 175 and 18)

[Bitcoinorama]

So of about 5 boards that burned, 2 WERE NOT HX850:

FractionalReserve (from knc forum)
We were one of those who blew a cap (actually it was our board that burned with a lot of smoke and whistles). We were runing it on a Corsair HX1050 Gold.

My power supply is a rosewill lightning.

So you come on the forum and parade some theory that HX850's are the cause of the problem, when 2/5 were not HX850.

And you give me shit when I challenge you on that??

I am not an elec engineer myself, but yes it is particular PSUs.

Oh look, when I called you on it, it became not exclusively HX850's, but "particular PSUs".

I am not an elec engineer myself

Yes, but you come on here and act like one until someone calls your bluff.

If you deal in facts, you won't have any problems with me. But if you want to trot out nonsense, I'll call you on it. If you think that's harsh, too bad. You keep claiming you are en engineer. And I'll say it again - engineers deal in facts.

Deal in facts or you'll have to deal with me calling your bluff over and over again.

Jesus, no I do not, stop cherry picking. Never ever, ever on this board ever have I ever pretended to be an electrical engineer or have any knowledge of electronics. Engineering design yes, as that what i've studied, as I have mentioned numerous times. I have never lied, ever, you chose not to read or just troll, which to be fair with your constant and continuous negativity at every occassion is clearly the case. I stated perfectly well I am relaying brief conversations with General Electric's guy as and when he had time spare, and yes this particular power supply causes problems. You aren't calling any bluff, as there is no bluff to call. The problem occurs upon reset and spokes current to the board. Believe it or not this does actually occur in datacentres worldwide from time to time. It's not that out of the ordinary.

EDIT: as shared below: https://www.google.com/search?q=site:forum.corsair.com+HX850#q=site%3Aforum.corsair.com+HX850+fried

[ur0pl]

http://thumbs4.ebaystatic.com/d/l225/m/mgjVeAWKwqzEQE7SmKpr4Jg.jpg
I bought this (sry for bad pic)
I didnt take much notice at the time, but the jumper is set to pin 4 and pin 6 unlike the setup suggested in the manual of pin 4 and 5
I also have the 8vrm boards and the 6 connection controller board

http://thumbs4.ebaystatic.com/d/l225/m/mgjVeAWKwqzEQE7SmKpr4Jg.jpg[/img]

I bought that too. Is there something wrong with the configuration? Should i change the pins? Do you have problems with yours?

There is nothing wrong with that jumper, the pinout looks to be correct.  Its not as pretty or as functional as mine but hey.  

Well, is there any expert who can say what is the difference between shorting pin 4 & 6 vs. 4 & 5. Most people use pins 4 & 5 no? I think I might pull the pin out of the one i have to reconfigure it from 4 &6 to 4 & 5. I don't know

In addition, was Redacted right that one should disconnect the paperclip or one of these things before turning off the PSU power switch?

[rrrix]

Yikes 

HX850: It's not just frying Jupiters

https://www.google.com/search?q=site:forum.corsair.com+HX850#q=site%3Aforum.corsair.com+HX850+fried

[DPoS]

What denial? What head in the sands?? They worked their asses off to improve the issue, and ignored the FUD. The extra fans just waste electricity. The temps quoted from Bertmod were from the VRMs not the ASIC. Please explain what trainwreck exactly? They, in a week have delivered more hashrate than BFL have to date, and more boxes than Avalon ever achieved. They have just released an update that massively improves hashrate. It was a firmware, not a cooling issue. One week. Fair enough if you don't want to deal with them again, their engineering partners on this project think they are incredible, really. That's not hype.

I went from ~410 to ~510 BY COOLING

yes, you are in denial

they should of tested and created .95 before saving money taking off the 4 VRMs

FACT

[DeathAndTaxes]

I bought this (sry for bad pic)
I didnt take much notice at the time, but the jumper is set to pin 4 and pin 6 unlike the setup suggested in the manual of pin 4 and 5
I also have the 8vrm boards and the 6 connection controller board

http://thumbs4.ebaystatic.com/d/l225/m/mgjVeAWKwqzEQE7SmKpr4Jg.jpg[/img]

I bought that too. Is there something wrong with the configuration? Should i change the pins? Do you have problems with yours?

There is nothing wrong with that jumper, the pinout looks to be correct.  Its not as pretty or as functional as mine but hey.  

Well, is there any expert who can say what is the difference between shorting pin 4 & 6 vs. 4 & 5. Most people use pins 4 & 5 no? I think I might pull the pin out of the one i have to reconfigure it from 4 &6 to 4 & 5. I don't know

In addition, was Redacted right that one should disconnect the paperclip or one of these things before turning off the PSU power switch?

I already point it out thread.

First of all it isn't pin 4, 5, or 6 (pins #1 to #12 is the first row and pins #13 to #24 are on the second row).  The first row is opposite the "clip" and the second row is the side with the clip.  The PS-ON pin is #16.  On 99% of PSU it will be the only green wire.  When PS_ON (#16) is connected to ground (any ground) it will "turn on"* the PSU. 




Any ground pin will work equally fine. As you can see in the pinout above there are multiple ground pins in the ATX-24 connector and they all are exactly the same (the all connect to the ground plane of the PSU).  You are just completing a circuit from the positive voltage on pin #16 to any ground.  What you call #5 & #6 are #17 & #18 and they are both ground pins, either one is fine.   For the record pins #3, #5, #15, #17, #18, #19, and #24 are all grounds, connecting pin #16 to any one of those will complete the power on circuit.  Hell you could even connect a wire from PS_ON to a bare screw on the power supply and it would work (UL listed PSU means the metal chassis is also grounded).



* I use word "turn on" but technically the PSU is always on unless unplugged or it has a physical power disconnect switch.  Internally it is energized and it is sending power to the 5VSB "standby" pin at all times.  Connecting the PS_ON pin to ground pulls the voltage low and the PSU is "looking" for that event to energize the output rails.  Sometimes you can here a click if you jumper PS_ON after PSU is powered on (don't do this with equipment connected).  That click is the power supply switching a relay which turns the output rails on or off.

[sickpig]

What denial? What head in the sands?? They worked their asses off to improve the issue. The extra fans just waste electricity. The temps quoted from Bertmod were from the VRMs not the ASIC. Please explain what trainwreck exactly? They, in a week have delivered more hashrate than BFL have to date, and more boxes than Avalon ever achieved. They have just released an update that massively improves hashrate. It was a firmware, not a cooling issue. One week. Fair enough if you don't want to deal with them again, their engineering partners on this project think they are incredible, really. That's not hype.

'Orama I'm well aware of this, and I think they did a terrific work. Kudos to KnC crew.

Having said that try walking in KnC's customers shoes, really.

There were long days without no news at all a part from piece of info that comes from emails received by customers, Anotherohst.se admins on IRC channels. You can imagine that this the best situation for pure and wild speculation. Do you agree?

To this add the pressure everybody felt due to diff going higher and higher.

That's why people are freaking out.

Finally I wanna thank you personally for the work you've done so far. it was very helpfull to me.

 

 

[Bitcoinorama]

Yikes 

HX850: It's not just frying Jupiters

https://www.google.com/search?q=site:forum.corsair.com+HX850#q=site%3Aforum.corsair.com+HX850+fried

Thanks for this, i'll pass it on.

[FractionalReserve]

HX 850 and HX 1050 is of same design, only difference is output as far as I know. So maybe it would be better to say be careful with the Corsair HX series.

Bitcoinorama, if I understand you correctly the issue only occurs after the ATX has shut down autoamtically.
When you then restart them they will do something odd, (i.e Voltage spike or something, Current surge seems odd as this would be an err on the Jupiter side).
this odd thing they are doing are frying the caps (Voltage spike => current surge) ore somethin.


This is exactly how our board was fried.

ATX shut down due to overload (?)

When restarted... boom, smokes and fireworks.


did I get you right?

[crumbs]

And here he's correct.  If the VRM is designed to withstand 100 C, cooling it from 80 to 40 makes no difference.  

Do you read before trolling???  the chips are rated for 100C not the VRMs

but even regarding the chips, just because it can work at 100C ...  oh never mind.. back to ignore

Ask someone to read this for you, pl0x!

...
The temps ascertained by the BertMod (great work that man), reveal the voltage regulator temps, and not the ASIC. The voltage regulators can handle in excess of 100 degrees Celsius - ambient (surrounding environment) - so blowing a fan on them is pointless.
...

[Bitcoinorama]

HX 850 and HX 1050 is of same design, only difference is output as far as I know. So maybe it would be better to say be careful with the Corsair HX series.

Bitcoinorama, if I understand you correctly the issue only occurs after the ATX has shut down autoamtically.
When you then restart them they will do something odd, (i.e Voltage spike or something, Current surge seems odd as this would be an err on the Jupiter side).
this odd thing they are doing are frying the caps (Voltage spike => current surge) ore somethin.


This is exactly how our board was fried.

ATX shut down due to overload (?)

When restarted... boom, smokes and fireworks.


did I get you right?

Precisely, that's what the GE guy stated. He said they surge for 30 seconds after reset, but after such time they are ok to switch off and on again, but by that time if your boards are connected, pop.

[merv77]

0.95 firmware seem to be working perfectly, power consumption, hash rate, rejects and hardware errors all improved 100%, ok, ok, I'm kidding... about 95% 
4 VRMs seem to be doing fine, but I've only been running for a few minutes, but looking great so far.

/joke
oh yeh, I realize why KnC removed the VRMs, they need to find Orama's wages from somewhere... I guess Orama doesn't come cheap, you know what those VRMs cost.... 
It costs for quality just like Orama     Did I just come up with the new slogan for the board..
/joke

[Bargraphics]

Hosting Update:

0.95 FW update on my hosted units worked and they all seem to be hashing between 450-550GH.

1 out of the 11 is dead or unresponsive

1 might be having issues with going down randomly but I'm monitoring this one.

9 out of 11 going strong so far.

Did 0.95 fix anyone else that had KnC Hosting/datacenter issues?

[crumbs]

HX 850 and HX 1050 is of same design, only difference is output as far as I know. So maybe it would be better to say be careful with the Corsair HX series.

Bitcoinorama, if I understand you correctly the issue only occurs after the ATX has shut down autoamtically.
When you then restart them they will do something odd, (i.e Voltage spike or something, Current surge seems odd as this would be an err on the Jupiter side).
this odd thing they are doing are frying the caps (Voltage spike => current surge) ore somethin.


This is exactly how our board was fried.

ATX shut down due to overload (?)

When restarted... boom, smokes and fireworks.


did I get you right?

Precisely, that's what the GE guy stated. He said they surge for 30 seconds after reset, but after such time they are ok to switch off and on again, but by that time if your boards are connected, pop.

Was this fault reproduced in Da Lab?  Scope/volt logger?

[Bitcoinorama]

0.95 firmware seem to be working perfectly, power consumption, hash rate, rejects and hardware errors all improved 100%, ok, ok, I'm kidding... about 95% 
4 VRMs seem to be doing fine, but I've only been running for a few minutes, but looking great so far.

/joke
oh yeh, I realize why KnC removed the VRMs, they need to find Orama's wages from somewhere... I guess Orama doesn't come cheap, you know what those VRMs cost.... 
It costs for quality just like Orama     Did I just come up with the new slogan for the board..
/joke

Email this to Sam, he's unlikely to see this otherwise!

Anyway I got to grab some shut eye. I'm an hour from where i'm staying and I need to grab 5 hours shut eye so I can let the GE guy in to work his magic tomo. Night!

[Bitcoinorama]

HX 850 and HX 1050 is of same design, only difference is output as far as I know. So maybe it would be better to say be careful with the Corsair HX series.

Bitcoinorama, if I understand you correctly the issue only occurs after the ATX has shut down autoamtically.
When you then restart them they will do something odd, (i.e Voltage spike or something, Current surge seems odd as this would be an err on the Jupiter side).
this odd thing they are doing are frying the caps (Voltage spike => current surge) ore somethin.


This is exactly how our board was fried.

ATX shut down due to overload (?)

When restarted... boom, smokes and fireworks.


did I get you right?

Precisely, that's what the GE guy stated. He said they surge for 30 seconds after reset, but after such time they are ok to switch off and on again, but by that time if your boards are connected, pop.

Was this fault reproduced in Da Lab?  Scope/volt logger?

Of course! The tube screeny thing with a pen that you can never get the football on since all TV went digital, right?

[crumbs]

HX 850 and HX 1050 is of same design, only difference is output as far as I know. So maybe it would be better to say be careful with the Corsair HX series.

Bitcoinorama, if I understand you correctly the issue only occurs after the ATX has shut down autoamtically.
When you then restart them they will do something odd, (i.e Voltage spike or something, Current surge seems odd as this would be an err on the Jupiter side).
this odd thing they are doing are frying the caps (Voltage spike => current surge) ore somethin.


This is exactly how our board was fried.

ATX shut down due to overload (?)

When restarted... boom, smokes and fireworks.


did I get you right?

Precisely, that's what the GE guy stated. He said they surge for 30 seconds after reset, but after such time they are ok to switch off and on again, but by that time if your boards are connected, pop.

Was this fault reproduced in Da Lab?  Scope/volt logger?

Of course! The tube screeny thing with a pen that you can never get the football on since all TV went digital, right?

For der fine werke like PSs, a $100 usb scope, a grabbyclip probe & a laptop

Edit:  still find it difficult to believe that a brand name commercial PS that powered countless mobos without a hiccup turns out to be out of spec.  Or were the caps bought at a Thai massage parlor?

[Mota]

I get the feeling Orama has me on his ignore list since he responded to pretty much everything except my posts