Topic: Unofficial Spondoolies SP20 thread - page 44. (Read 126204 times)

lolzz ya , I have oriented the SP20, so that the heatsinks are upright. By 6pin, so you mean the PCIE power connectors?

that's more like left side...
check out temps on the 6pin from time to time, they may get hot from the reversal of airflow

Just wanted to post that after reversing the fan direction to Push, I am getting slightly lower temps and  lower noise as well. (Fan speed at 10)

After reversing the fan direction, I also applied tape over the top row holes, since these top-row holes are simply passing through the outside cold air (can be verified with an IR-thermo)


Reversing the fan, allows easy access to the power-sockets, RJ45, and the status LED.

some of my units do that. some don't Sometimes a reboot makes it go away.

whats with your last loop being so much higher power usage than the 140W setpoint? Its not supposed to do that

Thought I would share the perm home of 7 sp20's

each with a single corsair or SS 750. getting about 1220gh

some six pack shots


my stack of six  sp20's

has 2 clamps to prevent it from falling

uses 5 psu's

 3 evga 1300 g2's --------- 1 machine per psu
 1 seasonic 1200 plat------- "       "       "     "
 1 evga 1600 plat-----------  2 sp20's on this one

all about 600 watts and 1200gh    so 3600 watts and 7.2th   using 4x 120 volt circuits
  
2x 20 amp circuits run   4 sp20s
2x 15 amp circuits run   2 sp20s

all well within safety margins.  room goes to 90f  door closed .  down to 82 f door open



cement tile board for fire protection




door closed but can be opened for cooling



door opened to cool but chain is on it

I did the same thing!! My sp20 thought it was a sp10 !!!  Spent 4 hours trying to do a recover but could not get it to work. I had to do the boot from SD card to make it a sp20 again.
My question is-- Can I ever run the recovery SD and remove the SD card or should I just leave the boot SD card in forever ?

I'll post here my little experiments as i don't want to make another thread! PSU: dps2000bb on 220v

Mining Rate: 1704.19Ghs
Temp Front / Back T,B    0 °C / 58,53 °C
Fan Speed    100
Start Voltage    0.784 / 0.783 / 0.784 / 0.783
Max Voltage    0.79
Max Watts    1350 / 1350 / 1350 / 1350
Wall wattage 1290

Mining Rate: 1690.68Ghs
Temp Front / Back T,B    15 °C / 70,67 °C
Fan Speed    100
Start Voltage    0.784 / 0.783 / 0.784 / 0.783
Max Voltage    0.79
Max Watts    1350 / 1350 / 1350 / 1350
Wall wattage 1290

Mining Rate: 1677.17Ghs
Temp Front / Back T,B    8 °C / 61,60 °C
Fan Speed    100
Start Voltage    0.784 / 0.783 / 0.784 / 0.783
Max Voltage    0.79
Wall wattage 1265

Mining Rate: 1654.01Ghs       STOCK
Temp Front / Back T,B    16 °C / 73,69 °C
Fan Speed    80
Start Voltage    0.69 / 0.69 / 0.69 / 0.69
Max Voltage    0.75
Wall wattage 1225

Mining Rate: 1610.59Ghs
Temp Front / Back T,B    21 °C / 74,69 °C
Fan Speed    80
Start Voltage    0.69 / 0.69 / 0.69 / 0.69
Max Voltage    0.74
Wall wattage 1170

Mining Rate: 1585.5Ghs
Temp Front / Back T,B    20 °C / 71,68 °C
Fan Speed    80
Start Voltage    0.69 / 0.69 / 0.69 / 0.69
Max Voltage    0.73
Wall wattage 1120

Mining Rate: 1417.59Ghs
Temp Front / Back T,B    15 °C / 53,51 °C
Fan Speed    70
Start Voltage    0.66 / 0.66 / 0.66 / 0.66
Max Voltage    0.7
Wall wattage 890

Mining Rate: 1302.75Ghs
Temp Front / Back T,B    14 °C / 50,47 °C
Fan Speed    40
Start Voltage    0.66 / 0.66 / 0.66 / 0.66
Max Voltage    0.68
Wall wattage 760

Mining Rate: 1252.57Ghs
Temp Front / Back T,B    15 °C / 44,42 °C
Fan Speed    70
Start Voltage    0.65 / 0.65 / 0.65 / 0.65
Max Voltage    0.67
Wall wattage 720

Mining Rate: 855.96Ghs
Temp Front / Back T,B    15 °C / 31,30 °C
Fan Speed    50
Start Voltage    0.6 / 0.6 / 0.6 / 0.6
Max Voltage    0.61
Wall wattage 425

Mining Rate: 770.07Ghs
Temp Front / Back T,B    14 °C / 29,28 °C
Fan Speed    40
Start Voltage    0.58 / 0.58 / 0.58 / 0.58
Max Voltage    0.6
Wall wattage 380

Did anybody noticed slightly lower hash on 2.5.64 vs 2.5.58 or 2.5.61?
I've got 8-10 Gh lower. Miner is stable and power use is the same (same settings)

miners now content 










and the SP31 since it doesn't have a thread of it's own...

Thank you for the generous offer.  I can take one from home to the office tomorow.  I just didn't realize it was a micro card from reading the instructions.  So when I made it on an SD card, I was pretty much done for the night at work.  Thought maybe if I could upload from file the correct firmware it might fix it.

Was finally able to find this:
You can click on "Firmware Upgrade" then "Manual Selection" to access several firmware versions which Zvi currently thinks are decent. You can download all of the old firmware at http://storage.googleapis.com/spond_firmware/spon_2.X.YY.tar, where X and YY are the version numbers of the firmware you want to use.

But it wouldn't seem to load onto the SP since it now thinks it's an SP10. I tried both 2.5.31 and 2.5.12.   Was going to try and avoid the office for a few days, but doubt I'll be able to hold out now.

I am a bit buzzed (new years eve cheer) , but I live in NJ, USA.

 If you live in the USA I could make a sd card for you and mail it on the 2nd of Jan.

I wish.  With the downgrade to 2.5.12, it changed to thinking it was an SP10.  So I'm stuck in the SP10 firmware selections.

one of the webGIU pages is 'firmware update' or similar. press the automatic button and it should be rebooted on the new FW within a few minutes

Anybody know where to download SP20 firmware?  It shows in the gui that you can update from file.  After going down to 2.5.12 and now my machine thinks its a Dawson, I would like to reload the correct firmware.  You don't get those options after installing the 2.5.12.

I found the tech blog and how to create a recovery sd.  Except after doing it, noticed it was a micro SD slot.  Had to head home, so was hoping I could just load a correct firmware version from file since I can do that remotely.  Haven't been able to locate their firmware files on their website or github yet.

Thanks.

Impressive.
With only 48/42C exhaust, you can also drop the fan to 20 easily while keeping the volts and the watts.
All you need is to have all chips temp stably below 115C.
Is there a reason to have max voltage so much higher than start? I thought that optimal is 5 mV difference.

Mining Rate: 1196.6Ghs   less then 630 watts (it was 630 on 110v)

what kind of power draw are you getting with that clock?

YES. I am running an sp20 on one SS 750.  (would likely run on a 650)