[ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs

[notlist3d]

Was not expecting it today.   But nice surprise.  Now need to test it and see how it does on speed .  If any of you find a great setting please share.  Looks like your well on the way to finding one.

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[philipma1957]

I am getting really good numbers  with lower :
watts 180
fan 40
volts .062
max volts .068

.55 watt per gh damn good


Temp Front / Back T,B


32 °C / 71,65 °C
Fan Speed
40
Start Voltage
0.62 / 0.62 / 0.62 / 0.62
Max Voltage
0.67
Max Watts
180 / 180 / 180 / 180



 744 watts for 1350 gh = 0.552 watts per gh  I am using an evga 1300 g2

  

[Guy Corem]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling ambient temperature and specific ASIC batch.

[Guy Corem]

Within 1-2 days we'll reach to "shipping from stock" status.

[notlist3d]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Very Impressive!  Looks like I will be using this unit for quite a long time

[Biodom]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

[Guy Corem]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

[Biodom]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?

[raskul]

.55 watt per gh damn good



 744 watts for 1350 gh = 0.552 watts per gh  I am using an evga 1300 g2
http://imagizer.imageshack.us/v2/1280x1024q90/537/U40TpA.png

fabulous. i bought the evga 1600 80+ gold ( i like some head(room) )  so i'll see what sort of numbers i can get with that, when it arrives*


*funny private joke.   

[Guy Corem]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?

Measurements were done with Emerson 1600.
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.

[nhminer]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?

Measurements were done with Emerson 1600.
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.

Is there anyway to cut the fan speed to less than 40?  I plan on under clocking and am interested in reducing noise.

[zvisha]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?

Measurements were done with Emerson 1600.
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.

Is there anyway to cut the fan speed to less than 40?  I plan on under clocking and am interested in reducing noise.

edit /etc/mg_custom_rate via ssh

[nhminer]

Is there anyway to cut the fan speed to less than 40?  I plan on under clocking and am interested in reducing noise.

edit /etc/mg_custom_rate via ssh

looks like this is a new file


miner-FL1444045011# ls mg* -1
mg_custom_mode
mg_custom_mode_sp20
mg_custom_mode_sp30
mg_disabled_asics
mg_disabled_asics_sp20
mg_disabled_asics_sp30
mg_generic_psu
mg_psu_limit
mg_try_12v_fix
mg_work_mode
miner-FL1444045011#

What is the format to include the 30% fan rate?

[philipma1957]

.55 watt per gh damn good



 744 watts for 1350 gh = 0.552 watts per gh  I am using an evga 1300 g2
http://imagizer.imageshack.us/v2/1280x1024q90/537/U40TpA.png

fabulous. i bought the evga 1600 80+ gold ( i like some head(room) )  so i'll see what sort of numbers i can get with that, when it arrives*


*funny private joke.   

I think you could run 2 units on that psu

[raskul]

.55 watt per gh damn good



 744 watts for 1350 gh = 0.552 watts per gh  I am using an evga 1300 g2
http://imagizer.imageshack.us/v2/1280x1024q90/537/U40TpA.png

fabulous. i bought the evga 1600 80+ gold ( i like some head(room) )  so i'll see what sort of numbers i can get with that, when it arrives*


*funny private joke.   

I think you could run 2 units on that psu

well, it's like this.. once i'm done doing what i'm doing with it at home, it's going into a unit i have millions of miles from the earth where it will mine eternally on free electric.. so i'll be cranking it up to 11, and reckoned i'll need good headroom in the PSU... then again, you have me thinking, it may be worthwhile trying that PSU with 2 units... hmmm, indecision.

[Biffa]

The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.

Cooling?

Ambient temperature.

any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?

Measurements were done with Emerson 1600.
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.

Is there anyway to cut the fan speed to less than 40?  I plan on under clocking and am interested in reducing noise.

It could be that these fans don't even start to spin up till they get a certain amount of voltage equivalent to 40 on the UI.

[stan258]

I don't run the coolest cold aisles in the world and I'm suprised at this last order of SP 20's hitting 1650 gh stable. Very content customer on this last round. The first batch I cannot get past 1545 GH. Watts fan everything at max. I even swapped placment with the new one to see if I have a bigger airflow problem then I already know is brewing up. But same results, just better Asics I suppose.

[philipma1957]

I don't run the coolest cold aisles in the world and I'm suprised at this last order of SP 20's hitting 1650 gh stable. Very content customer on this last round. The first batch I cannot get past 1545 GH. Watts fan everything at max. I even swapped placment with the new one to see if I have a bigger airflow problem then I already know is brewing up. But same results, just better Asics I suppose.

after seeing my results try under clock and under volt

I am using 747 watts to get 1380gh

[stan258]

I don't run the coolest cold aisles in the world and I'm suprised at this last order of SP 20's hitting 1650 gh stable. Very content customer on this last round. The first batch I cannot get past 1545 GH. Watts fan everything at max. I even swapped placment with the new one to see if I have a bigger airflow problem then I already know is brewing up. But same results, just better Asics I suppose.

after seeing my results try under clock and under volt

I am using 747 watts to get 1380gh

I will run one from the October and one front this batch with your settings later tonight. Had to go to the regular job.

[RchGrav]

Is there anyway to cut the fan speed to less than 40?  I plan on under clocking and am interested in reducing noise.

edit /etc/mg_custom_rate via ssh

looks like this is a new file


miner-FL1444045011# ls mg* -1
mg_custom_mode
mg_custom_mode_sp20
mg_custom_mode_sp30
mg_disabled_asics
mg_disabled_asics_sp20
mg_disabled_asics_sp30
mg_generic_psu
mg_psu_limit
mg_try_12v_fix
mg_work_mode
miner-FL1444045011#

What is the format to include the 30% fan rate?

Even better you could just change the PHP file so that you don't have to keep manually editing  the mg_custom_mode_sp20 file...

Old code

Code:

 <select name="FAN" id="fan_speed_select">
                                  <?php for($i = 40; $i < 101; $i += 10){
                                      printf('<option value="%d" %s>%d</option>'
                                  } ?>
                              </select>

New code

Code:

 <select name="FAN" id="fan_speed_select">
                                  <?php for($i = 30; $i < 101; $i += 10){
                                      printf('<option value="%d" %s>%d</option>'
                                  } ?>
                              </select>

You can find this in /var/www/SP2x/settings.php around line 312 in Sp20 firmware version 2.5.27.. or you could probably just search the file for fan_speed_select.