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Topic: Home mining makes a comeback: check out Spondoolies new offer, the Jackson SP20 (Read 4942 times)

legendary
Activity: 1666
Merit: 1185
dogiecoin.com
Thermal shock OR condensate freezing on the boards. So just below 1c. Almost anything these days with a fan that has Fluid Dynamic Bearings are rated at 0c and above. For the simple reason the fan can actually seize and any electronics will therefore overheat, producing the magic smoke.

Are you aware that oils don't freeze at 0C, just because they're liquids?
member
Activity: 112
Merit: 10
Well I am waiting on my sp20 and of course it is now not shipped on the 18th but should ship by the 26th

   On the AM side here is  another burnt prisma


To be fair if you read the posts about it he may have gotten the gear too cold. Thus when it started it was like ice to hot and crack a cap

https://bitcointalksearch.org/topic/m.9590186






Dang, how cold are we talking about here?


Thermal shock OR condensate freezing on the boards. So just below 1c. Almost anything these days with a fan that has Fluid Dynamic Bearings are rated at 0c and above. For the simple reason the fan can actually seize and any electronics will therefore overheat, producing the magic smoke.
sr. member
Activity: 294
Merit: 250
i suppose what it really boils down to is personal preference.
some people are willing to trust their funds in the hands of others with IPO's and what-not and some just enjoy to mine.
I think you are right, amhash is not a real mining operation - it's a smoke and mirrors way of Am getting suckers to invest (again)

i've been away a while so forgive my ignorance, but... have AM yet paid out their shareholders from their last 'IPO' ?

personally, I like buying hardware because it holds resale value - I have resold several times the amount of hardware i can run at a time in my collection, usually for a premium locally over the cost of new hardware.  An S1 might be unprofitable to pay for cloud maintenance, but still has a resale value of $50-80 on a local market, which is significant

How many S1's would you like to buy at 50-80? For that, I'll make your market local.
member
Activity: 70
Merit: 10
Well I am waiting on my sp20 and of course it is now not shipped on the 18th but should ship by the 26th

   On the AM side here is  another burnt prisma


To be fair if you read the posts about it he may have gotten the gear too cold. Thus when it started it was like ice to hot and crack a cap

https://bitcointalksearch.org/topic/m.9590186






Dang, how cold are we talking about here?
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
Well I am waiting on my sp20 and of course it is now not shipped on the 18th but should ship by the 26th

   On the AM side here is  another burnt prisma


To be fair if you read the posts about it he may have gotten the gear too cold. Thus when it started it was like ice to hot and crack a cap

https://bitcointalksearch.org/topic/m.9590186




member
Activity: 118
Merit: 10
I don't think it's fair to compare cloud and hardware.   I think it would be more of the prisma against SP20.  And really amhash is not cloud but a havlock investment.

I agree. Here's a fair comparison:

SP 20:

$900/1700 gh/s = 0.52 $/gh

1280 W/1700 gh/s = 0.75 w/gh

6 Months opex @ $0.1/kwh = $560

6 months opex + capex = $1460 = $859/TH

AM Prisma:

$600/1500 gh/s = 0.4 $/gh

1200 W/1500 gh/s = 0.8 w/gh

6 Months opex @ $0.1/kwh = $527

6 months opex + capex = $1127 = $751/TH

Bottom line: if you want profitability, go with AM. If you want great customer service, go with SP.

You should add parameter "risk of breaking/burning". Of course it's not easy to calculate, nevertheless it's necessary
We have already saw burned Prisma, so it's indeed not trivial question.

I don't say which of SP20 and Prisma is better, it's rhetorical question Smiley

well I did lots of testing and decided to off load the prisma.  I took a loss on it and thats okay since I am a safety first kind of guy and I did not have a location to run it safely.

The price can quickly change, power consumption of chip not. No doubt power consumption is MAIN parameter and in such way Spoondolies looks like not bad. Sorry, but 1.0W/Ghs and even 0.8 W/Ghs is not yesterday, but day before yesterday.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
I don't think it's fair to compare cloud and hardware.   I think it would be more of the prisma against SP20.  And really amhash is not cloud but a havlock investment.

I agree. Here's a fair comparison:

SP 20:

$900/1700 gh/s = 0.52 $/gh

1280 W/1700 gh/s = 0.75 w/gh

6 Months opex @ $0.1/kwh = $560

6 months opex + capex = $1460 = $859/TH

AM Prisma:

$600/1500 gh/s = 0.4 $/gh

1200 W/1500 gh/s = 0.8 w/gh

6 Months opex @ $0.1/kwh = $527

6 months opex + capex = $1127 = $751/TH

Bottom line: if you want profitability, go with AM. If you want great customer service, go with SP.

You should add parameter "risk of breaking/burning". Of course it's not easy to calculate, nevertheless it's necessary
We have already saw burned Prisma, so it's indeed not trivial question.

I don't say which of SP20 and Prisma is better, it's rhetorical question Smiley

well I did lots of testing and decided to off load the prisma.  I took a loss on it and thats okay since I am a safety first kind of guy and I did not have a location to run it safely.
member
Activity: 118
Merit: 10
I don't think it's fair to compare cloud and hardware.   I think it would be more of the prisma against SP20.  And really amhash is not cloud but a havlock investment.

I agree. Here's a fair comparison:

SP 20:

$900/1700 gh/s = 0.52 $/gh

1280 W/1700 gh/s = 0.75 w/gh

6 Months opex @ $0.1/kwh = $560

6 months opex + capex = $1460 = $859/TH

AM Prisma:

$600/1500 gh/s = 0.4 $/gh

1200 W/1500 gh/s = 0.8 w/gh

6 Months opex @ $0.1/kwh = $527

6 months opex + capex = $1127 = $751/TH

Bottom line: if you want profitability, go with AM. If you want great customer service, go with SP.

You should add parameter "risk of breaking/burning". Of course it's not easy to calculate, nevertheless it's necessary
We have already saw burned Prisma, so it's indeed not trivial question.

I don't say which of SP20 and Prisma is better, it's rhetorical question Smiley
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'

Yeah the am prisma crashed and I had no other gear pointed at that pool.

I am not sure I want to keep this prisma it is temperamental.
not good mate.
i'm just waiting on the sparky upgrading the electric phase in our mining hut then I can put my SP10's back to turbo... currently running them at 1.2TH/s on 833w cap each box. 2 dead chips on one of my s3 units at home though... pile of crap chinese cheap shit.

EDIT: did I just say 'cheap'?  Undecided


 My s-3's have been good.

 But the prisma scares me. I am in NJ , USA It mines in my garage when I open the back door to let in cold air and blow the hot air out temps run well. Once I close the garage door it gets hot. The minera software on the rasp pi is weird the underclocks creep up. in hash in heat and in watts.

My thought was run the prisma at:

 freq 230 garage door open   ---- works great no problems
 freq 200 garage door closed ---- works weird 
 freq 190 garage door closed ---- works weird
 freq 180 garage door closed ---- works weird

the underclocks also work weird if I 
do them with garage door open. 
They don't go slow which means they get hot.

If I can't get it to underclock well  I won't be able to run it when I am not home.

sr. member
Activity: 434
Merit: 250

Yeah the am prisma crashed and I had no other gear pointed at that pool.

I am not sure I want to keep this prisma it is temperamental.
not good mate.
i'm just waiting on the sparky upgrading the electric phase in our mining hut then I can put my SP10's back to turbo... currently running them at 1.2TH/s on 833w cap each box. 2 dead chips on one of my s3 units at home though... pile of crap chinese cheap shit.

EDIT: did I just say 'cheap'?  Undecided
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'

Yeah the am prisma crashed and I had no other gear pointed at that pool.

I am not sure I want to keep this prisma it is temperamental.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
i suppose what it really boils down to is personal preference.
some people are willing to trust their funds in the hands of others with IPO's and what-not and some just enjoy to mine.
I think you are right, amhash is not a real mining operation - it's a smoke and mirrors way of Am getting suckers to invest (again)

i've been away a while so forgive my ignorance, but... have AM yet paid out their shareholders from their last 'IPO' ?

personally, I like buying hardware because it holds resale value - I have resold several times the amount of hardware i can run at a time in my collection, usually for a premium locally over the cost of new hardware.  An S1 might be unprofitable to pay for cloud maintenance, but still has a resale value of $50-80 on a local market, which is significant
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
the prisma does .8 watts a gh at :

freq 190
freq 200
freq 210
freq 220
freq 230
freq 240
freq 250
freq 260

I have been testing for days.

That seems very strange to me. When you set the frequency to 190, does your hash rate drop? If so, then how can the power efficiency remain at 0.8 J/Gh? If not, then you're not actually changing the setting - the change is not being saved, it's being ignored.

they stay pretty much in lock step. my freq 190 goes to 1225gh and 990-1005 watts.  so far every setting gets about .83 watts once you figure in the error ratings.

this is an sp20 thread. I don't want to clutter it with asicminer data but  right now I only have the asic miner.    I will do plenty of sp20 data once I get it.  I have pretty much a top of the line psu the evga 1600 p2
so my asic miner data will all be best case as will my sp20 when I get it.

I just stopped my freq 260 testing and am now trying freq 220 with the asic miner (slight under clock)   I had short tubes form asic miner and found they liked a slight under clock.


I am still of the opinion that the sp20 is a better deal and while people are comparing them at 600 vs 900 usd   my cost due to btc  price shifts   was 637 am vs 834  sp20.     so I am working with a 197 usd price difference.

Not 300 as some would be.
legendary
Activity: 826
Merit: 1004
the prisma does .8 watts a gh at :

freq 190
freq 200
freq 210
freq 220
freq 230
freq 240
freq 250
freq 260

I have been testing for days.

That seems very strange to me. When you set the frequency to 190, does your hash rate drop? If so, then how can the power efficiency remain at 0.8 J/Gh? If not, then you're not actually changing the setting - the change is not being saved, it's being ignored.
legendary
Activity: 3234
Merit: 1220
I can't tell you what a sp20 does I don't possess it yet.  but on the website they claim 1100 watts at 1700 gh or just under .65 watts

Check again. In the "PSU recommendations" tab it says: "Maximum power output – each SP20 requires 1152 W RMS continuous power. Spoondoolies-Tech recommends adding a 20% margin to handle power peaks."

An output of 1152W with a gold PSU would be ~1280W at the wall.

at 1.68TH mine was pulling 1133W at the wall using a EVGA 1300 G2
hero member
Activity: 770
Merit: 509
I can't tell you what a sp20 does I don't possess it yet.  but on the website they claim 1100 watts at 1700 gh or just under .65 watts

Check again. In the "PSU recommendations" tab it says: "Maximum power output – each SP20 requires 1152 W RMS continuous power. Spoondoolies-Tech recommends adding a 20% margin to handle power peaks."

An output of 1152W with a gold PSU would be ~1280W at the wall.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
the sp20 should do .65 per gh  or better.   .65 vs .80 is a big difference.

Why are you comparing an under-clocked SP20 with an over-clocked Prisma? Over-clocking generally requires an increase in voltage causing an increase in power. Under-clocking leads to a decrease in power. If you're going to do comparisons then do under-clocked vs under-clocked, standard vs standard, or over-clocked vs over-clocked. Otherwise you're basically just fudging the data.

the prisma does .8 watts a gh at :

freq 190
freq 200
freq 210
freq 220
freq 230
freq 240
freq 250
freq 260

I have been testing for days.

 I can't tell you what a sp20 does I don't possess it yet.  but on the website they claim 1100 watts at 1700 gh or just under .65 watts

edit they claim 1152 watts and 1.7 gh

right now I am doing 1588 gh with 1215-1254 watts and errors of 8% on the  am prisma.  so I am netting 1453 at the pool.

1215/1453 = .83
1215/1588 = .76

1254/1453 = .86
1254/1588 = .79
so at freq 260 oc       you are over .83 if you count the pool stats.


I have been testing to determine best setting.
current numbers below   are freq 260.  I am inclined to want sp20-'s over am prisma's   but to be fair I have to run the sp20 to be sure.




hero member
Activity: 770
Merit: 509
I don't think it's fair to compare cloud and hardware.   I think it would be more of the prisma against SP20.  And really amhash is not cloud but a havlock investment.

I agree. Here's a fair comparison:

SP 20:

$900/1700 gh/s = 0.52 $/gh

1280 W/1700 gh/s = 0.75 w/gh

6 Months opex @ $0.1/kwh = $560

6 months opex + capex = $1460 = $859/TH

AM Prisma:

$600/1500 gh/s = 0.4 $/gh

1200 W/1500 gh/s = 0.8 w/gh

6 Months opex @ $0.1/kwh = $527

6 months opex + capex = $1127 = $751/TH

Bottom line: if you want profitability, go with AM. If you want great customer service, go with SP.
legendary
Activity: 826
Merit: 1004
I don't think it's fair to compare cloud and hardware.   I think it would be more of the prisma against SP20.  And really amhash is not cloud but a havlock investment.

Of course AMHash is a cloud mining service. Using Havelock doesn't change the fact that you get x Gh/s for y BTC does it? Anyone treating AMHash like an investment instead of the mining contract is a fool given that it's guaranteed to drop in price as network hash rate increases.

As for comparing AMHash to other miners, why is that not fair? You're buying hashing power either way, only mining contracts are cheaper and therefore more profitable and that's the real reason why most people buy miners - profit.

i suppose what it really boils down to is personal preference.
some people are willing to trust their funds in the hands of others with IPO's and what-not and some just enjoy to mine.
I think you are right, amhash is not a real mining operation - it's a smoke and mirrors way of Am getting suckers to invest (again)

i've been away a while so forgive my ignorance, but... have AM yet paid out their shareholders from their last 'IPO' ?

AM have only had 1 IPO so I don't know what you're talking about. And people who bought AM at IPO and are still holding have made 600% profit from dividends. How is that relevant to this discussion though? It isn't. You're just trying to divert attention because you have no valid response to the fact that SP20's are vastly overpriced compared to the competition.

What is relevant is that the mining contracts being advertised in my signature are vastly better value than the miner being advertised in your signature and AMHash offers a far greater chance of making a profit from mining bitcoins.

You'd probably make a lot more money if you changed your affiliate link to advertise SP35's or something that isn't insanely overpriced.
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