I have now set 1 sp20 and 1 antminer s-3 one 1 evga 1300 g2
pulling 1043 watts for the two units 426 gh for the s-3 and 1322 for the sp20 so 1043 watts gives me 1748 gh .
I was thinking 1152 watts and 1650-1700 gh using an evga 1600 p2
this is much better.
Topic: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs - page 277. (Read 1260290 times)
November 24, 2014, 10:04:35 PM
November 24, 2014, 08:50:20 PM
Edit:
Just note that under very low fan settings you might stress the back side of the miner and it can cause termal shutdown. Theoretically it should work since the system scales on both dc2dc and asic temperature. be careful when touching the back side of the miner - it can become very hot
Just note that under very low fan settings you might stress the back side of the miner and it can cause termal shutdown. Theoretically it should work since the system scales on both dc2dc and asic temperature. be careful when touching the back side of the miner - it can become very hot
Is the startup asic voltage also the minimum voltage for temperature scaling.. or can it go lower than that?
November 24, 2014, 07:37:13 PM
My SP20 came with firmware v2.5.26 but I see there is a newer v2.5.27 - what does the update address & is it worth updating?
Peace
PS: Excellent piece of kit these SP20's - well done SP-Tech.
Peace
PS: Excellent piece of kit these SP20's - well done SP-Tech.
November 24, 2014, 07:26:28 PM
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?
My bad. Check mg_custom_mode. It's human readable.
Edit:
Just note that under very low fan settings you might stress the back side of the miner and it can cause termal shutdown. Theoretically it should work since the system scales on both dc2dc and asic temperature. be careful when touching the back side of the miner - it can become very hot
November 24, 2014, 07:17:51 PM
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:
Code:
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.
November 24, 2014, 06:32:39 PM
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.
November 24, 2014, 06:22:31 PM
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
November 24, 2014, 06:04:18 PM
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.
November 24, 2014, 03:39:36 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?
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.
November 24, 2014, 03:24:15 PM
.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.
November 24, 2014, 03:02:46 PM
.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
November 24, 2014, 02:48:22 PM
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?
November 24, 2014, 02:40:11 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.
edit /etc/mg_custom_rate via ssh
November 24, 2014, 01:57:32 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?
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.
November 24, 2014, 01:24:22 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?
It offers (according to spec) minimal efficiency of 92% in our tested working points @25C ambient.
November 24, 2014, 01:23:00 PM
.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.
November 24, 2014, 01:19:33 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
any specifics? it has to be hot (>25C), cold (<18C) or in a specific range?
November 24, 2014, 01:16:12 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
November 24, 2014, 01:13:45 PM
The SP20 can be under-clocked to ~0.5 J/GH, depending on cooling and specific ASIC batch.
Cooling?
November 24, 2014, 01:07:55 PM
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
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