Author

Topic: How I fixed my flaky S9 (Read 147 times)

hero member
Activity: 756
Merit: 560
January 22, 2018, 02:32:25 PM
#3
This should be pretty obvious as the APW3 only puts out 1200 watts on 110v. Every other support post these days has people plugging these into 110v then not understanding why they dont work properly.
newbie
Activity: 3
Merit: 0
January 22, 2018, 01:11:35 AM
#2
Were you sure it wasn't a temperature issue? What's your setup/environment like?
newbie
Activity: 1
Merit: 0
January 22, 2018, 12:40:21 AM
#1
Recently received a S9 from the January Batch. Right away I was having issues getting all the card to hash at full power. The S9 was flakily only recognizing 1 or 2 of the cards each time I would start it up. I was only getting around 5,000 - 10,000 GH/S because of this. It was never consistent, each time I would boot the S9 up, different board would be hashing.

My S9 was being powered by the Bitmain 1600w power supply and was hooked up at 120v on a 20amp breaker.  From the kernel Logs I was able to see that one the chains was not recognizing all the cores. The error message was something like:

Code:
Chain [J6] 0 cores
 

Tried to reset the s9 many times and updated to the latest firmware. I went through and only hooked up one board at a time in the S9 and was able to confirm that each board would hash individually, without the others connected.

The Solution:

I hooked the power supply up to 240v and I have been hashing at full power for 2 days straight now.

TLDR;

If your S9 is acting flaky and not hashing all cards consistently. Try switching to 240v




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