Pls. find below my customer experience with Bitmain.
https://bitcointalksearch.org/topic/ethical-problem-with-bitmain-1141392
Topic: Antminer S5 reliability and losses from defective miners (Read 986 times)
I have exactly 100 pcs of S5.
2 of them has problems with boards.
1 of them is unaccessible.
2 of them is running, but not hashing.
Beside this I had 1 notworjing fan.
I also have 40 S4.
5 of them has burnt PSU.Many (more then 10) not working fans.
Action:Bitmain sent PSUs without any cost for S4s.For S5 , I have sent a board and we have been writing to Bitmain for control board and not working board.I will send you a feed back about my customer experience and their attitude as soon as we have conclusion.
I used to have (I do not for the moment) 20 pcs of SP20.I have run them for 6 months without any problem.
2 of them has problems with boards.
1 of them is unaccessible.
2 of them is running, but not hashing.
Beside this I had 1 notworjing fan.
I also have 40 S4.
5 of them has burnt PSU.Many (more then 10) not working fans.
Action:Bitmain sent PSUs without any cost for S4s.For S5 , I have sent a board and we have been writing to Bitmain for control board and not working board.I will send you a feed back about my customer experience and their attitude as soon as we have conclusion.
I used to have (I do not for the moment) 20 pcs of SP20.I have run them for 6 months without any problem.
I may do an s-5 survey but think that 5 percent is a safe guess for a six month time period.
Wow! 5% loss is quite painful if it's true!
Does anybody have actual numbers about S5?
Also most miners have a lot of gear. This means a lot of heat and heat kills gear.
Well I got about thirty people to answer. More then three hundred machines .
I had thirteen all of mine worked well. Low clocks good power supplies.
I think five percent is pretty close plus 1 or minus 1 for the sp20.
as for the s 5 no survey. I do think the s-3 was really good maybe two or three percent but the s-5 does seem a bit worse then the s-3.
I had thirteen all of mine worked well. Low clocks good power supplies.
I think five percent is pretty close plus 1 or minus 1 for the sp20.
as for the s 5 no survey. I do think the s-3 was really good maybe two or three percent but the s-5 does seem a bit worse then the s-3.
I may do an s-5 survey but think that 5 percent is a safe guess for a six month time period.
Wow! 5% loss is quite painful if it's true!
Does anybody have actual numbers about S5?
Dear miners with big Antminer S5 farms,
I want to calculate approximate losses from my mine from defective S5 miners
Could you be so kind to tell us what % of your Antminer S5 become defective and stopped working after you started your mine?
Have you tried to repair them somehow?
best regards,
Sander
I want to calculate approximate losses from my mine from defective S5 miners
Could you be so kind to tell us what % of your Antminer S5 become defective and stopped working after you started your mine?
Have you tried to repair them somehow?
best regards,
Sander
I did a survey of sp20 owners loss rate is 4-7 percent.
I may do an s-5 survey but think that 5 percent is a safe guess for a six month time period.
Note the sp20 survey was done from my main account philipma1957.
Dear miners with big Antminer S5 farms,
I want to calculate approximate losses from my mine from defective S5 miners
Could you be so kind to tell us what % of your Antminer S5 become defective and stopped working after you started your mine?
Have you tried to repair them somehow?
best regards,
Sander
I want to calculate approximate losses from my mine from defective S5 miners
Could you be so kind to tell us what % of your Antminer S5 become defective and stopped working after you started your mine?
Have you tried to repair them somehow?
best regards,
Sander
Jump to: