Quote from: AerialGopher on January 11, 2018, 07:22:23 PM

Quote from: MinerSRQ on January 11, 2018, 04:11:41 PM

Quote from: Jeremiah1610 on January 11, 2018, 07:05:47 AM

Any info on problems with fan speeds on the s9? Got 3 hooked up today, been running 4.5hours now, and one of them likes to ramp up the fans to 6k rpm even though the temps are fine. Maybe a bad firmware? Also one of them is throwing .266% invalid/stale shares but this is below the pool avg so from what I understand thats pretty normal and will level out as I complete the ramp up period. Thanks for the help

I have one that goes from 4k to 6k every few minutes - or at least it did when it was SLIGHTLY warmer than it is now. (I mean by 2-4 degrees) I upgraded to "File System Version Fri Nov 17 17:57:49 CST 2017" in hopes of it correcting, but it didn't.

The highest chip temp is currently 76 and it no longer ramps up and down - however, I have no doubt that when the temps get back up to 78 it will resume the up and down.

What is your highest chip temp on your S9 that is spinning at 6k?

Where did you get the Nov 17 2017 version, all I saw was aug on bitmains site...

https://shop.bitmain.com/support.htm?pid=00720161126080548570Q2tDBXAH065D or directly here (https://file.bitmain.com/shop-file-server/firmwares/Antminer%20S9/Firmware/00720170428120943064Xx38xD7Y0683/Antminer-S9-all-201711171757-autofreq-user-Update2UBI-NF.tar.gz)

I don't know what difference 11/17/17 has vs others, I only upgraded to see if it would "fix" the RPM issue.