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Date:      Wed, 12 Feb 2020 10:39:37 -0800
From:      Chris <bsd-lists@BSDforge.com>
To:        freebsd-current <freebsd-current@freebsd.org>
Subject:   Which AMD CPUs are supported -- temperature
Message-ID:  <ad5a6a2d15376e09855c18cac23e92fa@udns.ultimatedns.net>

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Hard as I try I can not get anything close to the actual temperature
of the CPUs or cores while running on FreeBSD=2E
I assembled the following box as an intended builder for FreeBSD
Install images, upgrade images, and ports development, and package
builder / installer=2E
 But to no avail=2E I'm unwilling to put any pressure on a CPU I
have no reference material on regarding the temperature=2E Immediately
after boot I get 1=2E1C, and loading it with average services; the CPU
is purported by FreeBSD (amdtemp) to hover between ~7-11=2E6C=2E
 I can be fairly sure that the CPU isn't frozen after boot, as I'm
not dumping liquid nitrogen on it, or anything=2E :)
According to specs on this CPU; I can safely run it up to 70C=2E At
POST, the BIOS reports it around ~34-38C=2E But as noted above, after
boot, FreeBSD reports 1=2E1C=2E Which can't be correct=2E
What needs to be done to get the temp? I don't have this problem on
any of my other AMD based boxes/servers=2E

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

FreeBSD 12=2E0-CURRENT #0 r323185: amd64
Also tried on:
FreeBSD 12=2E1-STABLE r357001 amd64

# dmidecode 3=2E1
Scanning /dev/mem for entry point=2E
SMBIOS 2=2E8 present=2E

Handle 0x003F, DMI type 4, 42 bytes
Processor Information
=09Socket Designation: P0
=09Type: Central Processor
=09Family: Athlon X4
=09Manufacturer: AuthenticAMD
=09ID: 01 0F 63 00 FF FB 8B 17
=09Signature: Family 21, Model 48, Stepping 1
=09Flags:
=09=09FPU (Floating-point unit on-chip)
=09=09VME (Virtual mode extension)
=09=09DE (Debugging extension)
=09=09PSE (Page size extension)
=09=09TSC (Time stamp counter)
=09=09MSR (Model specific registers)
=09=09PAE (Physical address extension)
=09=09MCE (Machine check exception)
=09=09CX8 (CMPXCHG8 instruction supported)
=09=09APIC (On-chip APIC hardware supported)
=09=09SEP (Fast system call)
=09=09MTRR (Memory type range registers)
=09=09PGE (Page global enable)
=09=09MCA (Machine check architecture)
=09=09CMOV (Conditional move instruction supported)
=09=09PAT (Page attribute table)
=09=09PSE-36 (36-bit page size extension)
=09=09CLFSH (CLFLUSH instruction supported)
=09=09MMX (MMX technology supported)
=09=09FXSR (FXSAVE and FXSTOR instructions supported)
=09=09SSE (Streaming SIMD extensions)
=09=09SSE2 (Streaming SIMD extensions 2)
=09=09HTT (Multi-threading)
=09Version: AMD Athlon(tm) X4 860K Quad Core Processor    =20
=09Voltage: 1=2E4 V
=09External Clock: 100 MHz
=09Max Speed: 3700 MHz
=09Current Speed: 3700 MHz
=09Status: Populated, Enabled
=09Upgrade: Socket FM2
=09L1 Cache Handle: 0x0023
=09L2 Cache Handle: 0x0024
=09L3 Cache Handle: Not Provided
=09Serial Number: Not Specified
=09Asset Tag: Not Specified
=09Part Number: Not Specified
=09Core Count: 4
=09Core Enabled: 4
=09Thread Count: 4
=09Characteristics:
=09=0964-bit capable

dev=2Ecpu=2E3=2Ecx_method: C1/hlt
dev=2Ecpu=2E3=2Ecx_usage_counters: 63812
dev=2Ecpu=2E3=2Ecx_usage: 100=2E00% last 2223us
dev=2Ecpu=2E3=2Ecx_lowest: C1
dev=2Ecpu=2E3=2Ecx_supported: C1/1/0
dev=2Ecpu=2E3=2Etemperature: 1=2E6C
dev=2Ecpu=2E3=2E%parent: acpi0
dev=2Ecpu=2E3=2E%pnpinfo: _HID=3Dnone _UID=3D0
dev=2Ecpu=2E3=2E%location: handle=3D\_PR_=2EP003
dev=2Ecpu=2E3=2E%driver: cpu
dev=2Ecpu=2E3=2E%desc: ACPI CPU
dev=2Ecpu=2E2=2Ecx_method: C1/hlt
dev=2Ecpu=2E2=2Ecx_usage_counters: 14741
dev=2Ecpu=2E2=2Ecx_usage: 100=2E00% last 20303us
dev=2Ecpu=2E2=2Ecx_lowest: C1
dev=2Ecpu=2E2=2Ecx_supported: C1/1/0
dev=2Ecpu=2E2=2Etemperature: 1=2E6C
dev=2Ecpu=2E2=2E%parent: acpi0
dev=2Ecpu=2E2=2E%pnpinfo: _HID=3Dnone _UID=3D0
dev=2Ecpu=2E2=2E%location: handle=3D\_PR_=2EP002
dev=2Ecpu=2E2=2E%driver: cpu
dev=2Ecpu=2E2=2E%desc: ACPI CPU
dev=2Ecpu=2E1=2Ecx_method: C1/hlt
dev=2Ecpu=2E1=2Ecx_usage_counters: 13740
dev=2Ecpu=2E1=2Ecx_usage: 100=2E00% last 41429us
dev=2Ecpu=2E1=2Ecx_lowest: C1
dev=2Ecpu=2E1=2Ecx_supported: C1/1/0
dev=2Ecpu=2E1=2Etemperature: 1=2E6C
dev=2Ecpu=2E1=2E%parent: acpi0
dev=2Ecpu=2E1=2E%pnpinfo: _HID=3Dnone _UID=3D0
dev=2Ecpu=2E1=2E%location: handle=3D\_PR_=2EP001
dev=2Ecpu=2E1=2E%driver: cpu
dev=2Ecpu=2E1=2E%desc: ACPI CPU
dev=2Ecpu=2E0=2Ecx_method: C1/hlt C2/io
dev=2Ecpu=2E0=2Ecx_usage_counters: 36918 0
dev=2Ecpu=2E0=2Ecx_usage: 100=2E00% 0=2E00% last 3896us
dev=2Ecpu=2E0=2Ecx_lowest: C1
dev=2Ecpu=2E0=2Ecx_supported: C1/1/0 C2/2/400
dev=2Ecpu=2E0=2Efreq_levels: 3700/26568 3500/22525 3000/14531 2400/8507 1700/5415
dev=2Ecpu=2E0=2Efreq: 3700
dev=2Ecpu=2E0=2Etemperature: 1=2E6C
dev=2Ecpu=2E0=2E%parent: acpi0
dev=2Ecpu=2E0=2E%pnpinfo: _HID=3Dnone _UID=3D0
dev=2Ecpu=2E0=2E%location: handle=3D\_PR_=2EP000
dev=2Ecpu=2E0=2E%driver: cpu
dev=2Ecpu=2E0=2E%desc: ACPI CPU
dev=2Ecpu=2E%parent:=20

dev=2Eamdtemp=2E0=2Ecore0=2Esensor0: 11=2E1C
dev=2Eamdtemp=2E0=2Esensor_offset: 0
dev=2Eamdtemp=2E0=2E%parent: hostb7
dev=2Eamdtemp=2E0=2E%pnpinfo:=20
dev=2Eamdtemp=2E0=2E%location:=20
dev=2Eamdtemp=2E0=2E%driver: amdtemp
dev=2Eamdtemp=2E0=2E%desc: AMD CPU On-Die Thermal Sensors
dev=2Eamdtemp=2E%parent:=20
dev=2Ecpu=2E3=2Etemperature: 12=2E5C
dev=2Ecpu=2E2=2Etemperature: 12=2E5C
dev=2Ecpu=2E1=2Etemperature: 12=2E5C
dev=2Ecpu=2E0=2Etemperature: 12=2E5C

Thanks again!

--Chris





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