Swedish ASIC miner company kncminer.com

[butjust41day]

Hello

If any one has added proper heatsinks to the Neptunes VRMs as of yet I would be very interested in knowing the reduction in temperatures.

[1713590393]

1713590393

[1713590393]

1713590393

[1713590393]

1713590393

[vesperwillow]

Let's not forget the initial cost of the machines themselves. They are not free

KNC would disagree, they got paid to have equipment and mine with it. A lot of it.

[elton123]

I'm scared because I got a refund on one order recently, but regrettably switched another order to a Titan in April. At the downward spiral rate that KNCMiner is going, I am afraid that they will continue to pull sketchy tactics or even worse not deliver. I think its nearly impossible to get a Titan refund at this point.

[Biodom]

Without profit mining is dead. When mining dies, the network dies.

That's why I wonder if Wall street crowd realizes what they are doing in pushing down the price?

[DonDev]

This debate is a joke.

Basically, mining is a hedged investment on Bitcoin, and your profit is lower but your risk is also lower than purely investing in Bitcoin.

Furthermore, you help stabilize and secure the network aswell as verify transactions.

Buy and hold is nice, and many miners also do this, but the positive impact on the Bitcoin system is very limited.

You can mine and do all the things you suggest AND recover your costs or you can mine and not recover your costs.

Which would *YOU* rather do Collider ?

Without profit mining is dead. When mining dies, the network dies.

This is why honest ROI discussions are so important. The future of bitcoin depends on mining being economically sustainable.

Those vendors who avoid ROI discussions, take advantage of people's ignorance or otherwise exploit their customers are doing bitcoin a grave disservice. Its easy to talk the talk, how many of them are walking the walk ?

I agree with this guy ^^^^

[vesperwillow]

Without profit mining is dead. When mining dies, the network dies.

That's why I wonder if Wall street crowd realizes what they are doing in pushing down the price?

If I had to guess as to why there could be forceful artificial devaluation, I would say it's to push out the little people and help make it more centric to the people with power, money and influence

Also, to buy more for less.

[tolip_wen]

Also any details about the fan of Neptune to buy some replaced it?

fan = 140mm by 25mm thick  12V 0.4A  4 pin
(4 pin usually means PWM)

YMMV

[RoadStress]

Without profit mining is dead. When mining dies, the network dies.

You are wrong. Mining will continue to run even if it will run on red. Just need to find someone to pay for electricity costs.

[faetos]

its nearly impossible to get a Titan refund at this point.

Per their ToS it is, but just be persistent yet polite and they may change their mind. You may find someone human over there that may care a smidge and do the right thing.

[smracer]

Can I use longer cables for the controller to Neptune box link?  Do they have to be that short?  I would like to have a little more space to work with.

[tolip_wen]

First impressions before power up.

The controller 'enclosure' is FRUGAL TO A FAULT.
All they did was slap a clear cover over the top.
The bottom is exposed PCB.
The only thing 'elevating' the bare PCB from perhaps a metal table is 4 snap in plastic legs that hold the clear top up.
The sides are open also.

The ASIC case is steel, claim of 'stronger' probably accurate.

Looking inside first cube can see the monkies cranked the heatsink down so tight that the brand new ASIC PCB is low in the center and high at the corners. Brand fuckin new PCBs warped by basic assembly.
I imagine it'll work OK the Oct units got the same abuse and 'most' survived.
The screws holding heatsink plate in place are glued or cross threaded.
I'll need to dig out my long t-handle T10 torx to get em out.

Only 5-7 mm clearance below ASIC PCB (5mm in center below ASIC, 6-7mm at the corners.
Only 8mm between top of heatpipes and inside of case.
This limits adding height (M3 male/M3 female hex standoff) to them, else cut a hole for the pipes to stick out the top.
Raising the PCB is a must do in my book. 6mm clearance starves the bottom of PCB for air.

5 out of 6 of the case screws on the first cube were stripped during assembly.
I'm using a small jewelers style torx handle with only my finger tips (not abused by me)
It looks as if the inside hole is too big for the self tapping screws they used on the thin steel.

About what I expected for fit and lack of finishing touches mechanically.
(I set the bar low)

Time for the smoke test.
If I don't return soon with twisted panties it prolly means ASICs passed basic testing.

It may be a while for more reporting from me as  I have NMI's this side of screen.

YMMV


EDIT # 1 ) The stripped case screws means there ARE metal shavings somewhere that used to be part of the case.

[tolip_wen]

Can I use longer cables for the controller to Neptune box link?  Do they have to be that short?  I would like to have a little more space to work with.

Can often go a few feet with ribbon cables.
You can probably raise the SPI voltage to compensate up to a point.
If you have longer cables just try it, I doubt it would damage.

YMMV

[The Avenger]

Nice report tolip. These guys must assemble farm machinery the rest of the time.

Good luck with power up.

[fubly]

Yeah, on ROI... Looks like Neptune may or may not make even 5 btc... if it runs perfect.
30% estimated change with a few days to go, and the next few diffchanges look to be similar
Looks like mining just got stomped into commercial and private clouds by all the manufacturers who decided to mine for themselves.
cough cough
With 43 cent electric here, no way mining in Hawaii is profitable anymore
It would be cheaper for me to rent an office or storage unit in Chelan where it's 2.4cents, but difficulty says forget mining imho.

I'm done. As soon as these Neppies ship out, I'll be turning my attention elsewhere. (trading for now)
Good luck to all, and thank you to those who "put up" with me for the last year plus.
If anything, made a few cool friends...   *Aloha.*

Aloha too

[smoothrunnings]

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

This the first time I have heard about Single and Multi-Rail PSU's. LOL

So can you or someone provide something that demonstrates the physical difference between these types?

Thanks,

[samsonn25]

You can't tell from the outside.  It's the inside.  You have to know the specifications of that particular psu. Most higher end and high end psu will be single 12v rail.

[shmadz]

I am not familiar with multiple PSU's. How to set up single rail or multi rails? what is the best option to make neptune work? suppose I have three 850W PSU.

Each PSU is single  OR  multi rail.
Each rail needs to be capable 300 Watt minimum for each ASIC plugged into that rail.
(based on KnC statements)
For multi rail supplies you gotta dig into the literature for specifics on each rail.

For your 3 x 850 question, I'll assume single rail PSUs.
Use 2 ASIC per PSU and power controller cube from 3rd PSU with one ASIC.
If the 'suits' are to be believed this will load the 850's  to around 600 Watts.

If your three 850W PSUs are single rail and were in one box it would be a 'triple rail 2550W with 850W rails'.

Hope this helps.
Please if possible understand what is going on before applying power.
Internet advice can be faulty even with good intentions!!!

YMMV

very helpful, thank you. One additional question if you please.

Is it a bad thing to load say, 3 out of 4 rails to near full and leave the 4th one doing nothing?


also

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

I'm embarrased to say I didn't think it would be a problem, all my previous supplies have been single rail, so I've never had the experience so I bought a couple Antec 1300W  4 X 25 AMP PSU's cuz I thought they'd be fine and they were on a massive sale???

I haven't opened them yet, should I try to exchange?

[dropt]

I'm embarrased to say I didn't think it would be a problem, all my previous supplies have been single rail, so I've never had the experience so I bought a couple Antec 1300W  4 X 25 AMP PSU's cuz I thought they'd be fine and they were on a massive sale???

I haven't opened them yet, should I try to exchange?

Yes.

[Airwhale]

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

Yeah.  Even when the multi-rails are powerful enough to run mining gear by spec they still have problems.    I'd go for a 1200 Corsair over a 1500 Enermax any day. And I'd go for a server PSU over both =)

[xstr8guy]

Peeps....
I thought every miner knew....

You should only use SINGLE RAIL PSU'S
anything else you are wasting $ and taking huge risks imho

Multi-rail PSU's are SHIT,
I burnt out a couple last Generation before going to all Corsair single-rail
Even when the multi's "worked", they could not keep up with the rest
Even 5 year old-crappy used HP desktop PSU's were better. Just sayin'

Yeah.  Even when the multi-rails are powerful enough to run mining gear by spec,  I seem to have much more problems with multi-rail then single rail PSUs.  I'd go for a 1200 Corsair over a 1500 Enermax any day. And I'd go for a server PSU over both =)

Over on the KNC board there are several complaints that the Corsair AX1200i's are shutting down at startup presumably because of the protection mechanism built into the PSU.

I have the same issue using a Corsair 1200i power supply. After a couple of minutes the power supply shuts down. What did KNC tell you to do? This is one of the best power supplies out there this is very odd.