Date: Wed, 28 Sep 2022 15:29:22 +0000 From: "Dave Cottlehuber" <dch@skunkwerks.at> To: freebsd-arm <freebsd-arm@freebsd.org> Subject: fans & ipmi on ampere emag with lenovo bmc Message-ID: <64263e19-7592-47cb-9408-f6361b233f6b@app.fastmail.com>
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With recent exorbitant price hikes for electricity in Austria, I'm looking how to reduce the fans on my eMAG HR330A when its idle. There's no obvious sysctls related to fans, but there are IPMI raw sequences available[1] which I can send to the remote BMC: ipmitool -I lanplus -U ... -P ... -H ... raw 0x3c 0x14 etc Has anybody got a better solution to managing fans & temperature? # demsg [14935] ipmi0: <IPMI System Interface> on acpi0 [14935] ipmi0: SSIF interface not supported on ACPI # sysctl hw.ipmi dev.ipmi hw.ipmi.cycle_wait: 10 hw.ipmi.wd_pretimeout_countdown: 120 hw.ipmi.wd_startup_countdown: 0 hw.ipmi.wd_shutdown_countdown: 0 hw.ipmi.wd_timer_actions: 3 hw.ipmi.wd_init_enable: 1 hw.ipmi.on: 1 dev.ipmi.0.%parent: acpi0 dev.ipmi.0.%pnpinfo: _HID=APMC0D8A _UID=0 _CID=IPI0001 dev.ipmi.0.%location: handle=\_SB_.I2C4.IPI_ dev.ipmi.0.%driver: ipmi dev.ipmi.0.%desc: IPMI System Interface dev.ipmi.%parent: there is no /dev/ipmi device btw. main-n258204-33de921ca874 [1]: https://download.lenovo.com/servers_pdf/bmc_command_list_specification_v0.1.1.pdf A+ Dave
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