Observation.
In one of the Batch 4 machines I got, there is a machine with a July 28 firmware date within the Kernel Log.
Anyone noticed that? Is that an experimental firmware?
The cooling fans report constant 7000-9000 RPM range. That doesn't look normal. Recommendations?
Same for me here but a little lower. The fans at 5000 to 7000 rpm for batch 4 S3s. hashing is speed is normal 441Ghs.
Not checked the firmware or its date. Temperatures are normal and lower than batch one.
My all S3 batch 4 units fan is at 5000-7000, I checked it with a piece and the fan are running in higher rpm.
So, its not a hardware error, I think the miner is configured to run at that speed.