Swedish ASIC miner company kncminer.com

[Ytterbium]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

[Phoenix1969]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest 

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

[merv77]

just some KNC info...
here in Melbourne Australia we are going through a heat wave..
I'm surprised that all 3 Jupiters haven't missed a beat and are handling the extreme heat very well.
day                     outside      max Jupiter
                      temp Celsius       temp
13th Monday           34                70
14th Tuesday          43                75
15th Wednesday      43                75
16th Thursday         44                76
17th Tomorrow        44               TBA
EDIT.  the max temps reported above are the rear ASIC boards while the front ones are about 10 degrees Celsius lower.
BTW, I moved my Jupiters from inside my office to the garage where my car lives otherwise they would have roasted my family alive.  

What does 44C ambient (I assume your garage is even hotter than outside from the Jupiters) do to the hashing level?   Have you lost GH/s?

Yes, ambient temps are slightly higher in garage as it's a tin roof, but haven't measured it yet. 
When I had them running in my small office and outside temp was 35C, inside office reach as high as 45C

hashing is never changes from day temp max 44C and night temps (min) can be from 23C to 28C. 

jup 1 - 560 GH/s HW errors 0.66%  (560W Cooler Master V850 Gold)
jup 2 - 556 GH/s HW errors 2.0%    (570W Cooler Master V1000 Gold)
jup 3 - 557.5 GH/s HW errors 0.7%  (590W Silver Stone ST1500 Silver)

BTW, I'm running firmware version 0.95 just because most efficient in power consumption. 
Tried other newer firmwares and seen no advantages, but uses 10-15% more watts.

[soy]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

May I ask this is for how many of which miners?

[soy]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

I agree, bold.   Here we typically wire a 220v home dryer with 3 wire.  Three wire is a black, a red, a white, and an uninsulated ground conductor so 3 wire actually has 4 conductors.  In a 220v application like a dryer the current is flowing between the red and the black, not so much the neutral.  This means that if you split the 220 into two 115v lines, both returns will be on the single white.  While if you were to run two 12-2 (12 gauge white, black and an uninsulated ground) you'd have two white 12 gauge neutrals to return the current.  You should know that 12-2 only comes in black, white and uninsulated ground so even tho a strip vertical of circuit breakers in a service will alternate between L1 and L2, they will both have black hot leads.  The only time you'll see the red is for a 220vac application.  So, you can take a long 115vac extension cord and go around with that to other outlets and measure between the top right (hot) to top right and find some where hot to hot will measure 230vac while other hot to hot will measure 0v.

You might also see the red in a 14-3 when dual switches are used in a room when the overhead might be switched from either switch.

The original point being (before edit revisions) that if you need the 115vac to run the Neptune for some reason, you'd be able to split the L1 and L2 (from a 12-3), each to a neutral, giving 115vac on each but the neutral will be carrying current from both - a serious limitation.

Edit: It's been many years since I wired homes and I only have this mobile home to go by now but perhaps dryers 220v is simply the red and black (and ground) while not having a neutral but I don't ever recall seeing such a cable - like down here where they figure nobody with any smarts would live in a mobile home they sometimes use the neutral white for the red.

[Easy2Mine]

another Warning for KNC friends.... After 18 hours of testing cloudmining in cex.io with hosted gh/s... the btc balance is dropping still. A rip-job IMHO.

What do you mean?
What happened?

[Phoenix1969]

another Warning for KNC friends.... After 18 hours of testing cloudmining in cex.io with hosted gh/s... the btc balance is dropping still. A rip-job IMHO.

What do you mean?
What happened?

several things... bought 6.9, yet my average hash on the pool is/was 3.2 over the night, and the btc balance is less than when i shut down last night. dont know why.... looks as if some of the fees are more than earned. Im out of that mess now as soon as they let me withdraw. I was almost ready to drop some serious coin on it. anyone having success there?

[r1senfa17h]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest 

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

Yeah, I've got 14 x 220GH/s miners that eat 1kw each arriving soon. They come with 220v power supplies that would probably work on 120v outlets, but I don't want to risk it. I'm expecting them to heat my house (I'm in Michigan) until spring, but I'll probably have to get some ventilation as soon as it starts getting above freezing.

[DPoS]

Yeah, I've got 14 x 220GH/s miners that eat 1kw each arriving soon. They come with 220v power supplies that would probably work on 120v outlets, but I don't want to risk it. I'm expecting them to heat my house (I'm in Michigan) until spring, but I'll probably have to get some ventilation as soon as it starts getting above freezing.

I'm the last person to point out power usage vs hashing for this current phase of mining, but I have to say that sounds like a total mess on the monthly expense chart for 3Th

[kendog77]

Yeah, I've got 14 x 220GH/s miners that eat 1kw each arriving soon. They come with 220v power supplies that would probably work on 120v outlets, but I don't want to risk it. I'm expecting them to heat my house (I'm in Michigan) until spring, but I'll probably have to get some ventilation as soon as it starts getting above freezing.

I'm the last person to point out power usage vs hashing for this current phase of mining, but I have to say that sounds like a total mess on the monthly expense chart for 3Th

Agreed. Also, Antminers ship immediately, are the same price as the 220GH/s Avalon units, and use ~3 times less power per GH.

Personally, I won't touch anything with the tarnished Avalon name on it after the bulk chip fiasco.

[Gyrsur]

I never keep the web stats page up at all. I barely ever use it and when I did finally use it just to checking something noticed how slow things were going.


Is there any documentation for using the "tune" firmware? Before you start to blow up your rig? How many volts? Frequency, anything like that? Did KNC release anything on that or just threw it at us and said good luck?

Advanced tuning is only usable if your miner is not healthy (dead dies, disabled cores etc.), or you overclocking your machine. I am running 630 GH/s right now with my Oct Jupiter.

630 with 4 modules?

I overclocked my 8 VRM Oct Jupiter which is stable at 680Gh/s (4 modules) which is exactly what my November Jupiters are doing.

please can you tell the settings for this?

thank you!

[greenbtc]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest 

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

Yeah, I've got 14 x 220GH/s miners that eat 1kw each arriving soon. They come with 220v power supplies that would probably work on 120v outlets, but I don't want to risk it. I'm expecting them to heat my house (I'm in Michigan) until spring, but I'll probably have to get some ventilation as soon as it starts getting above freezing.

Unless you have a 6,000sq ft house I would expect that you're going to need some HVAC/open windows immediately upon receiving those. The most I can handle is about 8,000 watts in my house in the winter without it getting crazy hot (my house is 3200sq ft). I have a seperate building where my datacenter is to house excess machines that has plenty of cooling, but during the winter I don't keep more than 8kw of machinery in the house. Come end of Feb/March, I move everything into the climate controlled center.

[greenbtc]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest 

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

It's not bold at all. Almost everything that runs off 110 will run off 220 or 240v with the correct PSU. He's smart, as 220-240v is more efficient and he will be able to handle more Neptunes. You obviously don't have a firm grip on household electricity yet.

[vesperwillow]

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

It'll need to exchange at a specific rate as well, at least as fast as it heats up.

Agreed. Also, Antminers ship immediately, are the same price as the 220GH/s Avalon units, and use ~3 times less power per GH.

Where are you getting your power specs to see that they're 3x more efficient than a Neptune? or did I mis-read you.

[mikep2012]

Where are you getting your power specs to see that they're 3x more efficient than a Neptune? or did I mis-read you.

he was comparing antminer vs avalon2

[Phoenix1969]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

It's not bold at all. Almost everything that runs off 110 will run off 220 or 240v with the correct PSU. He's smart, as 220-240v is more efficient and he will be able to handle more Neptunes. You obviously don't have a firm grip on household electricity yet.

hahahaha.. really?   guess you don't know that two 110 lines make 220 in america....  don't have a grasp eh?  You know I wired my house...right? the neighbors house... and a few others...  all of which passed inspection by the county 1st time round. Not to mention the commercial installs. I frequently worked under a licenced Electrical contractor, and he will sign anything i do
Just sayin
110 combined to 220, then to the psu... then back down to dc... more conversion = more waste.
He will be able to run more neptunes, because he installed more circuits... weather you have 100 amp or 200 amp service will determine the amount you can run, period.
Europeans are lucky in that area

[greenbtc]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

It's not bold at all. Almost everything that runs off 110 will run off 220 or 240v with the correct PSU. He's smart, as 220-240v is more efficient and he will be able to handle more Neptunes. You obviously don't have a firm grip on household electricity yet.

hahahaha.. really?   guess you don't know that two 110 lines make 220 in america....  don't have a grasp eh?  You know I wired my house...right? the neighbors house... and a few others...  all of which passed inspection by the county 1st time round. Not to mention the commercial installs. I frequently worked under a licenced Electrical contractor, and he will sign anything i do
Just sayin
110 combined to 220, then to the psu... then back down to dc... more conversion = more waste.
Europeans are lucky in that area

No offense, but you have no clue what you are talking about. Yes, two 120 pulls are combined for 240v in America. I am in America. I said if you have a proper PSU, anything will work on 220-240V, and my statement stands. You obviously have no clue what you are talking about. I feel bad for whomever let you work on their house. I constantly take switching ballasts and PSUs from a 110v socket to a 240v scoket with zero issues. I do it with Jupiters. 4 GPU rigs. 1000w ballasts. You name it.

A little warning to others: don't take electrical advice from that guy, apparently the internet has made us all professional electricians!

[bobsag3]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

It's not bold at all. Almost everything that runs off 110 will run off 220 or 240v with the correct PSU. He's smart, as 220-240v is more efficient and he will be able to handle more Neptunes. You obviously don't have a firm grip on household electricity yet.

hahahaha.. really?   guess you don't know that two 110 lines make 220 in america....  don't have a grasp eh?  You know I wired my house...right? the neighbors house... and a few others...  all of which passed inspection by the county 1st time round. Not to mention the commercial installs. I frequently worked under a licenced Electrical contractor, and he will sign anything i do
Just sayin
110 combined to 220, then to the psu... then back down to dc... more conversion = more waste.
Europeans are lucky in that area

Um.
No? 220 is more efficient.. period.

"As for efficiency, 220V takes the cake. P=V*I and Ploss=I^2*R. For a particular appliance (say a computer) that uses a fixed amount of power the 120V country will use approx. 2X the current from the 220V country - for the same total power. What changes is the power lost - the power lost through the wire is proportional to current only, not voltage. Therefore the higher the voltage the more efficient the transmission is. Instead of taking the extra efficiency, 220V circuits tend to use smaller wire (thus saving copper/raw material instead)."

[greenbtc]

I'm wiring my house with 6 x 30-amp 240v circuits to handle my mining equipment. I'm more worried about cooling to be honest  

Yes, I think the low end, efficient, window AC by Haier got bumped by $30-$50 after the summer.  Went looking the other day.

30 amps at 240v is 7kW. Six of them would be 43kW.  That's 40 btu per second - or 146,722 btu per hour.

A 'low end' window AC isn't going to do much.

You just need a lot of ventilation - replace hot air with air from outside, as long as it's less then 70C outside you'll be fine.

well, I hope the Neptunes are 220 for your sake.... lol  bold...doing that without knowing...

It's not bold at all. Almost everything that runs off 110 will run off 220 or 240v with the correct PSU. He's smart, as 220-240v is more efficient and he will be able to handle more Neptunes. You obviously don't have a firm grip on household electricity yet.

hahahaha.. really?   guess you don't know that two 110 lines make 220 in america....  don't have a grasp eh?  You know I wired my house...right? the neighbors house... and a few others...  all of which passed inspection by the county 1st time round. Not to mention the commercial installs. I frequently worked under a licenced Electrical contractor, and he will sign anything i do
Just sayin
110 combined to 220, then to the psu... then back down to dc... more conversion = more waste.
Europeans are lucky in that area

Um.
No? 220 is more efficient.. period.

Bob, he obviously has no clue what he is talking about. 3 phase > 240 v > 120v --anyone with a brain and has worked with electricity for more than a day knows this.

[vesperwillow]

IIRC in the US it goes from 3 phase to a transformer which breaks it out to 3 or 5 poles, heck I forget. Anyhow from there you get your 240 which is split to 220/110 or whatnot.

edit, looks like someone beat me to it.