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Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 196. (Read 1260290 times)

hero member
Activity: 882
Merit: 1003
Man, I love these things.

Running 2 SP20s off of a single EVGA 1300G2, fans at 10%, getting 1.18TH/sec from each for 1100 watts at the wall.

That's about $120, give or take %20 for electricity for each one. Are you paying for that or stealing it from your neighbor? Smiley



Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?




I don't think you read that correctly.  I'm getting 2.4TH/s combined by running them off of a single PSU, electricity costs where I am are about $72/month for that draw. I'll generate about .9BTC at current difficulty this month, as difficulty changes I'll get a bit less but unless BTC crashes badly or the difficulty gets much worse these boxes should ROI this year.

Personally I'm pretty bullish on the entire bitcoin infrastructure long term.  I probably could have done 'better' by just buying BTC and holding them, but this is more enjoyable for me.  I'm not in this to get rich, if the boxes are still producing at a profitable margin a year from now, or even break even I'll be pretty happy.

theres no way you are generating  .9btc mining with 2.4TH , even if i dont factor in electricity 2.4TH only makes
.75 or .8 BTC a month.  When i subtract your electricity bill its acutually  .6 BTC.  Yes you will still ROI this year but
.6 btc about 30% less that what you say you are making..

I think he would be lucky to net .5 btc in the next 26 days. (.72 btc with no electricty cost )

Assuming  .07 electricity    5% diff jumps  and underclock efficiency  of .5 watts/gh

And 2 sp20 cost  3.7 btc
legendary
Activity: 2408
Merit: 1102
Leading Crypto Sports Betting & Casino Platform
Man, I love these things.

Running 2 SP20s off of a single EVGA 1300G2, fans at 10%, getting 1.18TH/sec from each for 1100 watts at the wall.

That's about $120, give or take %20 for electricity for each one. Are you paying for that or stealing it from your neighbor? Smiley



Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?




I don't think you read that correctly.  I'm getting 2.4TH/s combined by running them off of a single PSU, electricity costs where I am are about $72/month for that draw. I'll generate about .9BTC at current difficulty this month, as difficulty changes I'll get a bit less but unless BTC crashes badly or the difficulty gets much worse these boxes should ROI this year.

Personally I'm pretty bullish on the entire bitcoin infrastructure long term.  I probably could have done 'better' by just buying BTC and holding them, but this is more enjoyable for me.  I'm not in this to get rich, if the boxes are still producing at a profitable margin a year from now, or even break even I'll be pretty happy.

theres no way you are generating  .9btc mining with 2.4TH , even if i dont factor in electricity 2.4TH only makes
.75 or .8 BTC a month.  When i subtract your electricity bill its acutually  .6 BTC.  Yes you will still ROI this year but
.6 btc about 30% less that what you say you are making..
full member
Activity: 224
Merit: 100
Man, I love these things.

Running 2 SP20s off of a single EVGA 1300G2, fans at 10%, getting 1.18TH/sec from each for 1100 watts at the wall.

That's about $120, give or take %20 for electricity for each one. Are you paying for that or stealing it from your neighbor? Smiley



Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?




I don't think you read that correctly.  I'm getting 2.4TH/s combined by running them off of a single PSU, electricity costs where I am are about $72/month for that draw. I'll generate about .9BTC at current difficulty this month, as difficulty changes I'll get a bit less but unless BTC crashes badly or the difficulty gets much worse these boxes should ROI this year.

Personally I'm pretty bullish on the entire bitcoin infrastructure long term.  I probably could have done 'better' by just buying BTC and holding them, but this is more enjoyable for me.  I'm not in this to get rich, if the boxes are still producing at a profitable margin a year from now, or even break even I'll be pretty happy.
donator
Activity: 1414
Merit: 1051
Spondoolies, Beam & DAGlabs
sr. member
Activity: 434
Merit: 250
ask a photographer   Grin

one pin is broke!!
but I think it is not the main cause
I would say that's very likely the main cause. While I can't comment with certainty without knowing more details on the cables and the pin arrangement, if you have a wire break on the circular connector the unit is then going to be trying to pull all the current through two (or one) pin on the Molex end. That's a surefire recipe for a burned cable.
Indeed, this was the cause.
See attached 2 images of 2 separate cables of the discussed PSU.
In both cases, one of the GND wires was not connected to the connector. This caused over load situation on the remaining GND wires which led to melt down.
Please use quality 16AWG cables, 30cm long maximum.



donator
Activity: 1414
Merit: 1051
Spondoolies, Beam & DAGlabs
one pin is broke!!
but I think it is not the main cause
I would say that's very likely the main cause. While I can't comment with certainty without knowing more details on the cables and the pin arrangement, if you have a wire break on the circular connector the unit is then going to be trying to pull all the current through two (or one) pin on the Molex end. That's a surefire recipe for a burned cable.
Indeed, this was the cause.
See attached 2 images of 2 separate cables of the discussed PSU.
In both cases, one of the GND wires was not connected to the connector. This caused over load situation on the remaining GND wires which led to melt down.
Please use quality 16AWG cables, 30cm long maximum.

donator
Activity: 1414
Merit: 1051
Spondoolies, Beam & DAGlabs
legendary
Activity: 922
Merit: 1003
hey guys, planing to buy sp35, curently 5x ant s4. i cant find any reviews for them, can anyone say few words... can i overclock the sp35? are they stable? if i overclock how much power compsubtion will they need. the miners are ok, but i will not buy more of them. how are they compared to ant s5? thanks
off topic of your question, but sp35 runs only on 200-240V.
An SP35 will run on 120V (I've done it), but each PSU will be limited to 800W instead of 1600W. Still, you can get at least 3500 GH/s out of an SP35 at 120V drawing about 1600W at the wall. Of course that isn't the best use of an SP35 but, technically, 120V operation is an option.
interesting, I thought that it won't work based on tech specs for the machine.
The PSU datasheet shows that it will run on 120V, but limits itself to 800W. SP has confirmed: https://bitcointalksearch.org/topic/m.10056553

Personally I've had only a 75% success rate with SP35's running off of 120V. Some units simply won't. YMMV. In any case, the issue is academic. No one would buy an SP35 to run it on 120V; it makes little sense to do that.
legendary
Activity: 3892
Merit: 4331
hey guys, planing to buy sp35, curently 5x ant s4. i cant find any reviews for them, can anyone say few words... can i overclock the sp35? are they stable? if i overclock how much power compsubtion will they need. the miners are ok, but i will not buy more of them. how are they compared to ant s5? thanks
off topic of your question, but sp35 runs only on 200-240V.
An SP35 will run on 120V (I've done it), but each PSU will be limited to 800W instead of 1600W. Still, you can get at least 3500 GH/s out of an SP35 at 120V drawing about 1600W at the wall. Of course that isn't the best use of an SP35 but, technically, 120V operation is an option.

interesting, I thought that it won't work based on tech specs for the machine.
hero member
Activity: 677
Merit: 500
My SP10 PSU died. Sad  Emailed Spondoolies to see what they can do about it.
donator
Activity: 1414
Merit: 1051
Spondoolies, Beam & DAGlabs
What kind of PSU are you using ?
this error is very like one those when cables are not plugged in properly but if you have check that out already then its weird

I've tried 3 different PSU's so far, all 1200W+ Gold and all work fine on my other mining equipment. Even the SD recovery isn't happening......it ain't looking good eh?  Sad
SP-Tech, what's the loop to board mapping and are the two down loops on one board?
Loops 0 and 1 are on the right board and loops 2 and 3 are on the left.
hero member
Activity: 658
Merit: 500
No one cares to break even any more. Now's addiction .. one needs rehab to get out of mining.

I can't remember what I done with my life before discovering Bitcoin & mining......... Tongue

I do, i was whoring myself to high class pussies in Manhattan. These ladies pay me hefty money, totally discreet service. I was making more than MDs in the city.

I would go back to that if they can pay me in bitcoins, the nightmare of filing with IRS alone would be worth it.
legendary
Activity: 2044
Merit: 1055
"home miner"  Grin


Quote

...finally Apple allows mining apps on iOS, cgminer already ported...


BITCOIN PANIC BUY!!!

 Grin Grin Grin
hero member
Activity: 924
Merit: 1000
Watch out for the "Neg-Rep-Dogie-Police".....
No one cares to break even any more. Now's addiction .. one needs rehab to get out of mining.

I can't remember what I done with my life before discovering Bitcoin & mining......... Tongue
hero member
Activity: 572
Merit: 500
No one cares to break even any more. Now's addiction .. one needs rehab to get out of mining.
hero member
Activity: 818
Merit: 508
Man, I love these things.

Running 2 SP20s off of a single EVGA 1300G2, fans at 10%, getting 1.18TH/sec from each for 1100 watts at the wall.

That's about $120, give or take %20 for electricity for each one. Are you paying for that or stealing it from your neighbor? Smiley



Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?




Low cost of electricity
legendary
Activity: 1218
Merit: 1003

Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?




The secret is simple. Sell, when the BTC price is high. I sold the beginning of December 16 BTC.  I got a 4700 euro.
For this, I you can  pay several months for electricity.
In December, NiceHash Christmas miracle happened. I mined in 6 days 14 BTC.
Believe BTC and you shall receive  Cool
legendary
Activity: 1274
Merit: 1000
Personal text my ass....
Man, I love these things.

Running 2 SP20s off of a single EVGA 1300G2, fans at 10%, getting 1.18TH/sec from each for 1100 watts at the wall.

That's about $120, give or take %20 for electricity for each one. Are you paying for that or stealing it from your neighbor? Smiley



Anyone buying miners now, how are you going to break even? Please tell me the secret!!!!!? Based all on risk and "hoping" what will happen?


legendary
Activity: 1274
Merit: 1000
Personal text my ass....
I'll have 1 or 2 SP10's for sale pretty soon. They have been running rock solid since first turned on and both kept in a data center. Co-location costs are now costing more to keep them there, so I will have no choice but to unplug them. I believe at the current numbers each one brings in approx $150/month. They both are still at the data center, and I'm trying to find out what arrangements they have on shipping them back to me. Like if there is a cost. I remember you could run a rig for well over a year, but these have been running for only several months. And I can't run them at home. The piece and quiet is worth more then $150/monthly. If interested just shoot me a PM.
Thanks.

If you'll sell the SP10s, you won't have more SPT equipment. It will take the fun out of your weekends. I'll suggest you'll buy some SP20 so you'll be able to continue.

I would definitely buy an SP35 if I knew I would get my money back. It cost approx $350 to co-locate an SP35 and with current numbers today it will give you a return of $575/month and that will drop about $40-$50 every month. So it will hit that $350 number fairly quickly since I could never run an SP35 at home. It all boils down to the return I can get back and right now with bitcoin so low, it doesn't look good for any hardware purchasing for me anytime soon.

Yes, I will for sure miss it and have to find another hobby for the weekends. Most likely the only users that will break even are the ones that get free electricity. Yea, a little jealous!

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