This post will document problem(s) I may or may have encountered running the 3700X on archlinux and the fix that I might have applied
Geekbench score
The score is OK for 3700X AFAIK, but I haven’t test with sustain load yet: https://browser.geekbench.com/v4/cpu/13909162
The sound card
The very first problem after booting was static and crackling noise from the sound card:
0b:00.4 Audio device: Advanced Micro Devices, Inc. [AMD] Starship/Matisse HD Audio Controller
A quick googling lead me to a very old questions on askubuntu.com: https://askubuntu.com/questions/405071/static-and-crackling-in-my-hdmi-audio. Seem like it has been a common problem on ATI card but I haven’t got a chance to experience it, archwiki also got some line about the fix: https://wiki.archlinux.org/index.php/ATI#HDMI_audio
In short, edit
/etc/pulse/default.pa
append the prameter tsched=0 will resolve the problem.
load-module module-udev-detect tsched=0
Thermal sensors
The second problem I encounter was no thermal sensors working, lm_sensors report 0 RPM Fan speed and no temperature of any kind:
$ sensors asus-isa-0000 Adapter: ISA adapter cpu_fan: 0 RPM
Luckily, archwiki have a note for my exact case: https://wiki.archlinux.org/index.php/Lm_sensors#Asus_B450_motherboards_with_Ryzen_CPU . After installing the AUR package and append the kernel parameter and reboot, the sensors was fine.
$ sensors asus-isa-0000 Adapter: ISA adapter cpu_fan: 0 RPM it8665-isa-0290 Adapter: ISA adapter in0: +1.43 V (min = +0.99 V, max = +0.50 V) ALARM in1: +2.50 V (min = +2.25 V, max = +2.67 V) in2: +2.00 V (min = +0.64 V, max = +1.46 V) ALARM in3: +1.98 V (min = +2.68 V, max = +2.76 V) ALARM in4: +0.03 V (min = +0.85 V, max = +1.80 V) ALARM in5: +0.03 V (min = +0.58 V, max = +0.61 V) ALARM in6: +0.03 V (min = +1.31 V, max = +2.74 V) ALARM 3VSB: +3.36 V (min = +5.21 V, max = +5.56 V) ALARM Vbat: +3.25 V +3.3V: +3.36 V fan1: 2636 RPM (min = 33 RPM) fan2: 0 RPM (min = 15 RPM) fan3: 0 RPM (min = 15 RPM) fan4: 0 RPM (min = -1 RPM) fan6: 1149 RPM (min = -1 RPM) temp1: +56.0°C (low = -107.0°C, high = +127.0°C) temp2: +35.0°C (low = +112.0°C, high = +75.0°C) sensor = thermistor temp3: +41.0°C (low = -25.0°C, high = -39.0°C) ALARM sensor = thermistor temp4: +41.0°C (low = -21.0°C, high = +123.0°C) sensor = thermistor temp5: +41.0°C (low = +103.0°C, high = -71.0°C) ALARM sensor = thermistor temp6: +41.0°C (low = +46.0°C, high = +85.0°C) sensor = thermistor intrusion0: ALARM