Which AMD CPUs are supported -- temperature

Hard as I try I can not get anything close to the actual temperature
of the CPUs or cores while running on FreeBSD.
I assembled the following box as an intended builder for FreeBSD
Install images, upgrade images, and ports development, and package
builder / installer.
 But to no avail. I'm unwilling to put any pressure on a CPU I
have no reference material on regarding the temperature. Immediately
after boot I get 1.1C, and loading it with average services; the CPU
is purported by FreeBSD (amdtemp) to hover between ~7-11.6C.
 I can be fairly sure that the CPU isn't frozen after boot, as I'm
not dumping liquid nitrogen on it, or anything. :)
According to specs on this CPU; I can safely run it up to 70C. At
POST, the BIOS reports it around ~34-38C. But as noted above, after
boot, FreeBSD reports 1.1C. Which can't be correct.
What needs to be done to get the temp? I don't have this problem on
any of my other AMD based boxes/servers.

Detailed info on this CPU, and FreeBSD it's running:

FreeBSD 12.0-CURRENT #0 r323185: amd64
Also tried on:
FreeBSD 12.1-STABLE r357001 amd64

# dmidecode 3.1
Scanning /dev/mem for entry point.
SMBIOS 2.8 present.

Handle 0x003F, DMI type 4, 42 bytes
Processor Information
	Socket Designation: P0
	Type: Central Processor
	Family: Athlon X4
	Manufacturer: AuthenticAMD
	ID: 01 0F 63 00 FF FB 8B 17
	Signature: Family 21, Model 48, Stepping 1
	Flags:
		FPU (Floating-point unit on-chip)
		VME (Virtual mode extension)
		DE (Debugging extension)
		PSE (Page size extension)
		TSC (Time stamp counter)
		MSR (Model specific registers)
		PAE (Physical address extension)
		MCE (Machine check exception)
		CX8 (CMPXCHG8 instruction supported)
		APIC (On-chip APIC hardware supported)
		SEP (Fast system call)
		MTRR (Memory type range registers)
		PGE (Page global enable)
		MCA (Machine check architecture)
		CMOV (Conditional move instruction supported)
		PAT (Page attribute table)
		PSE-36 (36-bit page size extension)
		CLFSH (CLFLUSH instruction supported)
		MMX (MMX technology supported)
		FXSR (FXSAVE and FXSTOR instructions supported)
		SSE (Streaming SIMD extensions)
		SSE2 (Streaming SIMD extensions 2)
		HTT (Multi-threading)
	Version: AMD Athlon(tm) X4 860K Quad Core Processor     
	Voltage: 1.4 V
	External Clock: 100 MHz
	Max Speed: 3700 MHz
	Current Speed: 3700 MHz
	Status: Populated, Enabled
	Upgrade: Socket FM2
	L1 Cache Handle: 0x0023
	L2 Cache Handle: 0x0024
	L3 Cache Handle: Not Provided
	Serial Number: Not Specified
	Asset Tag: Not Specified
	Part Number: Not Specified
	Core Count: 4
	Core Enabled: 4
	Thread Count: 4
	Characteristics:
		64-bit capable

dev.cpu.3.cx_method: C1/hlt
dev.cpu.3.cx_usage_counters: 63812
dev.cpu.3.cx_usage: 100.00% last 2223us
dev.cpu.3.cx_lowest: C1
dev.cpu.3.cx_supported: C1/1/0
dev.cpu.3.temperature: 1.6C
dev.cpu.3.%parent: acpi0
dev.cpu.3.%pnpinfo: _HID=none _UID=0
dev.cpu.3.%location: handle=\_PR_.P003
dev.cpu.3.%driver: cpu
dev.cpu.3.%desc: ACPI CPU
dev.cpu.2.cx_method: C1/hlt
dev.cpu.2.cx_usage_counters: 14741
dev.cpu.2.cx_usage: 100.00% last 20303us
dev.cpu.2.cx_lowest: C1
dev.cpu.2.cx_supported: C1/1/0
dev.cpu.2.temperature: 1.6C
dev.cpu.2.%parent: acpi0
dev.cpu.2.%pnpinfo: _HID=none _UID=0
dev.cpu.2.%location: handle=\_PR_.P002
dev.cpu.2.%driver: cpu
dev.cpu.2.%desc: ACPI CPU
dev.cpu.1.cx_method: C1/hlt
dev.cpu.1.cx_usage_counters: 13740
dev.cpu.1.cx_usage: 100.00% last 41429us
dev.cpu.1.cx_lowest: C1
dev.cpu.1.cx_supported: C1/1/0
dev.cpu.1.temperature: 1.6C
dev.cpu.1.%parent: acpi0
dev.cpu.1.%pnpinfo: _HID=none _UID=0
dev.cpu.1.%location: handle=\_PR_.P001
dev.cpu.1.%driver: cpu
dev.cpu.1.%desc: ACPI CPU
dev.cpu.0.cx_method: C1/hlt C2/io
dev.cpu.0.cx_usage_counters: 36918 0
dev.cpu.0.cx_usage: 100.00% 0.00% last 3896us
dev.cpu.0.cx_lowest: C1
dev.cpu.0.cx_supported: C1/1/0 C2/2/400
dev.cpu.0.freq_levels: 3700/26568 3500/22525 3000/14531 2400/8507 1700/5415
dev.cpu.0.freq: 3700
dev.cpu.0.temperature: 1.6C
dev.cpu.0.%parent: acpi0
dev.cpu.0.%pnpinfo: _HID=none _UID=0
dev.cpu.0.%location: handle=\_PR_.P000
dev.cpu.0.%driver: cpu
dev.cpu.0.%desc: ACPI CPU
dev.cpu.%parent: 

dev.amdtemp.0.core0.sensor0: 11.1C
dev.amdtemp.0.sensor_offset: 0
dev.amdtemp.0.%parent: hostb7
dev.amdtemp.0.%pnpinfo: 
dev.amdtemp.0.%location: 
dev.amdtemp.0.%driver: amdtemp
dev.amdtemp.0.%desc: AMD CPU On-Die Thermal Sensors
dev.amdtemp.%parent: 
dev.cpu.3.temperature: 12.5C
dev.cpu.2.temperature: 12.5C
dev.cpu.1.temperature: 12.5C
dev.cpu.0.temperature: 12.5C

Thanks again!

--Chris