I am glad to see i am not the only one having a miner going down without any reason, however in my case my psu switches off and only starts after i have let the psu without power for some time.
I will try the sd card option as well
Also noticed since zvisha set it very low speed it seems to run a bit longer now, really hoping it not again to stop
I does not matter which psu i use all the heavy ones or even a 1000watt and a 1200 watt connected with the weird sp20 it can run for a few hours or a few weeks and then all of a sudden poof its no longer running.
However i am not sure if its the same problem, this machine does need much more power than the earlier bought one.
Oh, man, I hope they send me a good one as I'm hoping to buy more if this one works out good.
It seems to me, you're having some kind of electrical issue. PSU will shut down itself to protect it when faced a catastrophic event, such as overloading. Your miner may be drawing more power than the PSU can give. What settings are you configuring it with?
Sorry missed the post
No the psu's i own can probably run 2 of the sp20 most are 1600 watt 220v and have over 130 amp each.
The other used psu's are enermax quattro 1200 which are known to be able to deliver 1200 watt continue and they baffled me.
The older 1600 watt psu actually runs handwarm on the casing and the cables, while the older quattro's stay cold as ice on case and cable.
However when the sp20 went down was when it was actually running at start 0.64 and max 0.71 (watt at 288 )
The issue i noticed was that the first sp20 i received actually allways ran fine, bu the new one needed between 0.15 and 0.25 more volts to run same speed.
To avoid power being any issue i tried lower the machine to 0.61 start and 0.66 then all of a sudden the machine was off.
So i tried to power it back on but the lepa 1600 psu refused, so i was thinking of a problem with the psu.
Pulled the reserve 1600 watt recom psu from the rack and put the same machine on that and poof back on running.
Time goes by came back from a job and again machine off, and again psu did not switch back on.
Ofcourse lots of bad language .....
, stupid psu ..... now comes the idiot part i put the lepa 1600 back on this machine poof running again (WTH yes it ran again)
6 hours later i check the miner guess what off again, tested the psu on any other miner i have in the house no go not start.
Let it rest for an hour poof miner runs again on the lepa, so i pulled the quattro 1200 from the antminer c1 and put that on the failing sp20.
Running well for about 3 days poof off, (again alot of bad language) again took another approach pulled my 1000 watt nzxt and the other s3 ant quattro psu (1200watt as well)
So both connected to the sp20 so 2200 watts total can never be a power issue. 5 days later poof off again. and since that it random went off switched between all psu's in the house and once in between a few hours to almost a week it went down again.
Sp support lowered the settings because i had set it to factory default to see if that solved it. and weird enough this far no sudden stop yet.
Still the newer sp20 was needing more voltage to run same speed as the somewhat older one.
Yesterday i noticed the newer firmware so i installed it instant and since that i also lowered the settings for the miner to alsmot the same as philipma1957 is running his.
My setttings are now 0.616 start and max 0.626 i left the max power at 230 it seems not to matter. The sp1 is still running on the 1200 watt quattro and the sp2 has again his evga 1600g2.
So if i look at the power on the wall both should be able to run on even 1 antec 1200 watt quattro because both pull 565 watt max now
What strikes me is that with the new firmware the machine do about 1000 Gh, but it probably will go up in time.
Before you ask the same psu's have been running other machines for instance 2x ant s3 or c1 or some scrypt rigs and never fail, not even went down a minute in months.
If i switch them between sp1 and sp2 they run perfect on the sp1 but the second ... yes the weird power downs. the quottra pro i pulled from my gpu rig runs months in a row never went down at all. 1 hour on the sp2 poof off and refused to start for at least 30 minutes
Lets hope the weird one will keep running it keeps running now
, time will tell