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Author Topic: Swedish ASIC miner company kncminer.com  (Read 3011859 times)
Searing
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October 11, 2013, 07:26:03 AM
 #14781

After a night of hashing I must report disappointing performances...

Given that the speed is between 450 and 500 GH/s, my Juliter draws more than 900w at the wall, with high temps and frequent Cgminer reboots.

It seems clear to me that where the first "batch" performed well, this second release (with half of the components on the board) has a lot of issues as many are reporting here and on KnC forums.

And YES I've upgraded the firmware, and YES it's getting proper cooling. And YES I had to remove the top.
And YES I tested the whole set of firmware sets, with 0.94 being the only that's working almost stable.

As a last note, I'm using a Seasonic Platinum PSU, not the Corsair that, assuming the rumors from KnC forums again, is giving some power issues (guess why, it's 860w certified and the Jupiter wants 900 watt!)

Should we do a meanwhile a PSU survey?

P.s.
I forgot to mention the 20% of hardware errors


by cooling are you doing what some guys did in the past postings with pics literally taking 20 buck plastic walmart fans and placing them directly over the open faced miner board with a problem and blasting it .they have pics and stats back a few pages in this thread

all I got thought for a cheap fan it is worth a shot see the pics they posted some said it worked well (for now I still assume it is a firmware problem like bitcoinorama also posted in prev threads on this area in bitcointalk forums..if nothing else the pics are funny in their precarious ' hanging" over the open Jupiter miners Smiley

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October 11, 2013, 07:37:58 AM
 #14782

Firmware: 0.94
PSU: Cougar S700
Cooling: default + 2x Noctua NF-S12B FLX




Any adivce on PSU?
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October 11, 2013, 07:39:29 AM
 #14783

I have still have a day 2 low 400 order for hosting still not hashing. 11 days past the deadline. Very disappointed. 😞
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October 11, 2013, 07:42:55 AM
 #14784

Yeah where is that idiot Bitcoinorama when you need him?

Imo, this is a multi - pronged problem. Not only was the packaging inadequate but more importantly we have a design problem. going from 8 to 4 VRM was a mistake.  Double the phases means half the current, means smoother power, means more stability for over clocking, means less heat, means less blowing up.  I doubt it's just firmware.
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October 11, 2013, 07:49:42 AM
 #14785

and considering that 110v over seas is different from 110v american..

lets see 110v 50hz to 110v 60hz. Defently could cause an issue.

HOWEVER. i know that the power supply should be taking all the slack in that but still could send "dirty power" to the miner.

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October 11, 2013, 07:51:01 AM
 #14786

Firmware: 0.94
PSU: Cougar S700
Cooling: default + 2x Noctua NF-S12B FLX




Any adivce on PSU?
700 plenty... you might try raise your diff a bit more...  like 250


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October 11, 2013, 07:52:04 AM
 #14787

After a night of hashing I must report disappointing performances...

Given that the speed is between 450 and 500 GH/s, my Juliter draws more than 900w at the wall, with high temps and frequent Cgminer reboots.

It seems clear to me that where the first "batch" performed well, this second release (with half of the components on the board) has a lot of issues as many are reporting here and on KnC forums.

And YES I've upgraded the firmware, and YES it's getting proper cooling. And YES I had to remove the top.
And YES I tested the whole set of firmware sets, with 0.94 being the only that's working almost stable.

As a last note, I'm using a Seasonic Platinum PSU, not the Corsair that, assuming the rumors from KnC forums again, is giving some power issues (guess why, it's 860w certified and the Jupiter wants 900 watt!)

Should we do a meanwhile a PSU survey?

P.s.
I forgot to mention the 20% of hardware errors

It's just shit..... Sorry to say...

I as well have an over-configured my environment (AC cooled room at 18 C or lower), and en Enermax-1250 PSU.  Still the day-2 Jupiter (with half the components) is running 330 Gh/s instead of 550 !   Yes I ran it the whole night..and this morning BitMinter-statistics are telling: 280 Gh/s for most of the night.  
As I posted before: only one ASIC-board is performing well in my Jupiter...the other 3 do MORE than 40% hardware-errors. It's a hardware issue!  Point!
I will request an RMA.... my ROI will be negative now, for sure.....I'm very sad....
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October 11, 2013, 07:54:47 AM
 #14788

I have still have a day 2 low 400 order for hosting still not hashing. 11 days past the deadline. Very disappointed. 😞

Well the day 1 hosted Jupiter's aren't doing much better... Mine has been mining for 2 days and hasn't even made .5BTC (110 - 150 GH/s plus some down time)

There is definitely something going on with the hosting but nothing has been disclosed.  I've only heard of one full speed Jupiter at the data center and that was one of bargraphics rigs (he has 11, the other 10 are just as bad as mine).  The lack of hashing is bad enough, but the lack of information really makes it hard to swallow.

I emailed them a week ago and asked to refund my hosting charge and send me my unit.  I've also asked for a full refund and they act like they didn't even read the email... no response.  I call every day and I get told the same thing, that they are looking into it, never any specifics.

I feel like I paid them an extra $2200 to keep my Jupiter hostage and there's nothing I can do about it.
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October 11, 2013, 07:59:41 AM
 #14789

are the guys with the additional fans sucking or blowing?

are the guys in hot climates without air conditioning doomed to a half (3/4) dead rig?

are the guys receiving rigs with half the VRM suffering now because they actually were needed?

if the f/w updates are merely knocking out the troublesome cores, is it really worth upgrading f/w at all?

7 grand to risk burning ur family alive with an unstable prototype rig.

c'mon guys, this cant be what all the fuss was about surely.......

are rigs even being packed & posted???

all still 'confident'.......Huh

when your confidence is proven to be b.s. (faux) optimism, will we notice any difference in your output??

PLEASE DONT KEEP IGNORING THESE KINDS OF QUESTIONS, THOUSANDS OF DOLLARS MAY BE PEANUTS TO YOU.....
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October 11, 2013, 08:01:20 AM
 #14790

Being the businessmen that they are, with Bitcoinorama yapping at their tails, I can assure you they will make all of you assume all the losses.
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October 11, 2013, 08:09:04 AM
 #14791

If KNCMiner doesn't ship both of my Jupiter units by the end of next week or refund any money, then I might kill myself for financial reasons.
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October 11, 2013, 08:13:54 AM
 #14792

If KNCMiner doesn't ship both of my Jupiter units by the end of next week or refund any money, then I might kill myself for financial reasons.

you have fun with that. But can i have all your bitcoins?

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October 11, 2013, 08:18:19 AM
 #14793

If KNCMiner doesn't ship both of my Jupiter units by the end of next week or refund any money, then I might kill myself for financial reasons.

Well, certainly don't do that.  It's just money after all, right?  Tongue

But, hey, Bitcoinorama claims he's all about ethics. I'm sure he'd understand your dilemma and get you a refund, right?

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October 11, 2013, 08:20:01 AM
 #14794

I have still have a day 2 low 400 order for hosting still not hashing. 11 days past the deadline. Very disappointed. 😞

Well the day 1 hosted Jupiter's aren't doing much better... Mine has been mining for 2 days and hasn't even made .5BTC (110 - 150 GH/s plus some down time)

There is definitely something going on with the hosting but nothing has been disclosed.  I've only heard of one full speed Jupiter at the data center and that was one of bargraphics rigs (he has 11, the other 10 are just as bad as mine).  The lack of hashing is bad enough, but the lack of information really makes it hard to swallow.

I emailed them a week ago and asked to refund my hosting charge and send me my unit.  I've also asked for a full refund and they act like they didn't even read the email... no response.  I call every day and I get told the same thing, that they are looking into it, never any specifics.

I feel like I paid them an extra $2200 to keep my Jupiter hostage and there's nothing I can do about it.

dhenson, your profile pick REALLY SAYS IT ALL FOR ALL OF US.....dam!!!!!
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October 11, 2013, 08:22:37 AM
 #14795

I have still have a day 2 low 400 order for hosting still not hashing. 11 days past the deadline. Very disappointed. 😞

Well the day 1 hosted Jupiter's aren't doing much better... Mine has been mining for 2 days and hasn't even made .5BTC (110 - 150 GH/s plus some down time)

There is definitely something going on with the hosting but nothing has been disclosed.  I've only heard of one full speed Jupiter at the data center and that was one of bargraphics rigs (he has 11, the other 10 are just as bad as mine).  The lack of hashing is bad enough, but the lack of information really makes it hard to swallow.

I emailed them a week ago and asked to refund my hosting charge and send me my unit.  I've also asked for a full refund and they act like they didn't even read the email... no response.  I call every day and I get told the same thing, that they are looking into it, never any specifics.

I feel like I paid them an extra $2200 to keep my Jupiter hostage and there's nothing I can do about it.

I'd tell them that they broke the contract, I'd want my money back and the rig delivered as per end of contract already paid up front.
The whole reason you paid for hosting was to avoid a small amount of downtime nevermind weeks of it ffs. Remember me arguing that it would take longer for them to set up hosted rigs than the 1st delivered ones sent next day? I thought I was talking hours, and only while they set up the 1st batch...not weeks of ongoing loss of hashing. For both types of customer :/
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October 11, 2013, 08:25:25 AM
 #14796

Yeah where is that idiot Bitcoinorama when you need him?

Imo, this is a multi - pronged problem. Not only was the packaging inadequate but more importantly we have a design problem. going from 8 to 4 VRM was a mistake.  Double the phases means half the current, means smoother power, means more stability for over clocking, means less heat, means less blowing up.  I doubt it's just firmware.

@Cypherdoc

Why are you, a HashFast representative, in a competitors thread piling on?   I'm not saying there isn't criticism due, but this kind of stuff really makes HashFast look bad.  You might want to think about that some...
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October 11, 2013, 08:26:17 AM
 #14797

Hey, guys, is there anybody who already picked-up his device locally in Stockholm?
If so, please can you tell us how this all proceeds?

I.e. what kind of mail you received, in what hours pick-up possible, can it be done in holidays etc?
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October 11, 2013, 08:26:36 AM
 #14798

Clearly they are having the same performance issues in the hosting center you all are having at home.

Deer frozen.
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October 11, 2013, 08:27:28 AM
 #14799

0.93 on both, had 0.94 on them but found HW was higher.



Yes that seems to be the simplest solution at the present.

I will be swapping out the stock fans for 175cfm ones.

I will post the the results on my first impressions post that can be followed at the link bellow.
https://bitcointalk.org/index.php?topic=306969.msg3290956#msg3290956
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October 11, 2013, 08:28:27 AM
 #14800

Clearly they are having the same performance issues in the hosting center you all are having at home.

Deer frozen.

No they aren't. People here have a clue lol
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