Ok, back on to the S7 topic .....
I've been hashing along for over 24hrs now. No heatsinks have fallen off ........ yet.
I did have a brief issue with the following miner when I updated the IP address from the stock IP address. It sat there all dumb flashing the red light and beeping for a couple minutes. Then it woke up and has been hashing ever since.
That S7 B3 while hashing along, it will now flash the red LED. Maybe 1 a minute, sometimes 2-3-4 times in a minute.
So I looked at the Kernel Log to find out what is going on
DRV FIFO EMPTYThat's what that red LED is indicating.
I'm assuming that the miner is not getting the data to be hashed quick enough causing the FIFO buffer to run out of data.
I was hashing with the stock firmware and was having this issue. To see if the updated firmware would fix this, I updated all the miners to the latest firmware on the Bitmain site.... Just this one S7 is having the DRV FIFO EMPTY issue.
I've tried different ports on the switch, I've tried different CAT5e cables thinking maybe there is some issue with a switch port or a patch cable... nada, still tossing that error.
Any suggestions to tweak this thing?
?
ALSO............
I'm noticing that the S7's like to bounce around in difficulty on Nicehash ... whereas my S5's are rock solid at 2048.
Would it be better to have a fixed difficulty rather than a difficulty that is bouncing around frequently? How would that be done?