https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238838
Bug ID: 238838
Summary: HP X3421 could not turbo boost to 3.4GHz
Product: Base System
Version: 12.0-STABLE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: paul....@gmail.com
HP X3421 (based on AMD 64 bits X3421 GPU) could not turbo boost to 3.4GHz
It could only running at Max. speed of 2.1GHz only.
Repeation:
1. Install the basic system
2. Enable the CPU frequency control feature (enabled by default), device
cpufreq
3. enable Powerd in /etc/rc.conf, powerd_enable="YES"
4. make full load to the system
5. observe the sysctl variable by "sysctl -a | grep cpu.0.freq"
it will show;
dev.cpu.0.freq_levels: 2100/5036 1800/3650 1400/2428
dev.cpu.0.freq: 2100
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