On Apr 5, 2019, at 8:24 AM, JICHUN LIU <jliu666 at hotmail.com> wrote: > > When I use sensors-detect: > Sorry, no sensors were detected. Instead, try: $ sudo ipmitool sensor list There are thresholds you can set to make the fans behave sanely, but those of us who don’t own such a server already won’t be able to advise until we see that output. There are also HP-proprietary tools you can try: https://serverfault.com/a/630565/18096 I prefer using the built-in OS facilities myself.