acpi_thermal on nforce 4 board

[Kevin Oberman]

> From: Pav Lucistnik <pav at FreeBSD.org>
> Date: Fri, 28 Apr 2006 15:39:55 +0200
> Sender: owner-freebsd-acpi at freebsd.org
> 
> 
> --=-Dm+CK71nhnjG2s2bA/cI
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> 
> Hi list!
> 
> I recently got a new motherboard and CPU. I like to keep a tap on the
> CPU temperature. xmbmon utility no longer works on this hardware, so I
> turned to ACPI.
> 
> Since I assembled the system on Monday, the temperature never changed:
> 
> hw.acpi.thermal.tz0.temperature: 21.8C
> 
> Is our acpi_thermal(4) supposed to work with nForce 4 chipsets?
> 
> 
> It's MSI Neo4-FI board, dmesg is at http://hood.oook.cz/techno/ I can
> get a verbose boot dmesg later, if needed. BIOS is latest (5.0).
> 
> $ sysctl hw.acpi
> hw.acpi.supported_sleep_state: S1 S4 S5
> hw.acpi.power_button_state: S5
> hw.acpi.sleep_button_state: S1
> hw.acpi.lid_switch_state: NONE
> hw.acpi.standby_state: S1
> hw.acpi.suspend_state: S3
> hw.acpi.sleep_delay: 1
> hw.acpi.s4bios: 0
> hw.acpi.verbose: 0
> hw.acpi.cpu.cx_supported: C1/0
> hw.acpi.cpu.cx_lowest: C1
> hw.acpi.cpu.cx_usage: 100.00%
> hw.acpi.thermal.min_runtime: 0
> hw.acpi.thermal.polling_rate: 10
> hw.acpi.thermal.tz0.temperature: 21.8C
> hw.acpi.thermal.tz0.active: -1
> hw.acpi.thermal.tz0.passive_cooling: 1
> hw.acpi.thermal.tz0.thermal_flags: 0
> hw.acpi.thermal.tz0._PSV: 50.0C
> hw.acpi.thermal.tz0._HOT: -1
> hw.acpi.thermal.tz0._CRT: 96.8C
> hw.acpi.thermal.tz0._ACx: 50.0C -1 -1 -1 -1 -1 -1 -1 -1 -1
> 

Pat,

I have not had any luck with ACPI for getting the temperature of my very
similar system (MSI K8N Neo-4 with nForce4), but mbmon works fine on
it. the sysctl output is identical

Just as you see, my hw.acpi.thermal.tz0.temperature always reads 21.8C
but mbmon says:

Temp.= 30.0, 35.0, 15.0; Rot.= 0, 3125, 6250
Vcore = 2.34, 3.31; Volt. = 3.17, 5.00, 2.07, -14.59, -7.66

Clearly the 15.0 is bogus, but the CPU and system temps look to be
right. The first number is the "system" temp and the second is the CPU.
The manual does not list a third, so I don't think the chilly value has
ANY meaning at all.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634