Bug 5575

Summary: Bad voltage reading on GA-K8N Ultra-9
Product: Drivers Reporter: Nicolas Mailhot (Nicolas.Mailhot)
Component: Hardware MonitoringAssignee: Jean Delvare (jdelvare)
Status: REJECTED INVALID    
Severity: normal    
Priority: P2    
Hardware: i386   
OS: Linux   
Kernel Version: 2.6.14-1.1654_FC5 (2.6.14-git10) Subsystem:
Regression: --- Bisected commit-id:
Attachments: dmesg
lspci

Description Nicolas Mailhot 2005-11-09 04:10:49 UTC
lm_sensors: 2.9.1

I have a Gigabyte GA-K8N Ultra-9 motherboard
(http://www.giga-byte.com/MotherBoard/Products/Products_GA-K8N%
20Ultra-9.htm)

The documentation states it uses a IT8712F chip and sensors-detect
selected it8712-isa as it should.

Temperature readings are sane, fan readings are sane too once the
divisor has been bumped a little, but voltage readings are complete
junk.

Note the BIOS and Giga-byte Easytune tool only check VCoreA, +3,3V, +5V, +12V
and CPUVid, so lots of sensors may not be connected to anything on this
board

The readings with the default config are :

[root@rousalka nim]# dmesg | grep powernow
powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.50.4)
powernow-k8:    0 : fid 0xe (2200 MHz), vid 0x6 (1400 mV)
powernow-k8:    1 : fid 0x2 (1000 MHz), vid 0x12 (1100 mV)
[root@rousalka nim]# cpufreq-selector -f 1000000
[root@rousalka nim]# sensors

it8712-isa-0290
Adapter: ISA adapter
VCore 1:   +1.09 V  (min =  +1.42 V, max =  +1.57 V)   ALARM
VCore 2:   +2.56 V  (min =  +2.40 V, max =  +2.61 V)
+3.3V:     +6.56 V  (min =  +3.14 V, max =  +3.46 V)   ALARM
+5V:       +5.35 V  (min =  +4.76 V, max =  +5.24 V)   ALARM
+12V:     +11.84 V  (min = +11.39 V, max = +12.61 V)
-12V:     -11.77 V  (min = -12.63 V, max = -11.41 V)   ALARM
-5V:       -2.83 V  (min =  -5.26 V, max =  -4.77 V)   ALARM
Stdby:     +3.41 V  (min =  +4.76 V, max =  +5.24 V)   ALARM
VBat:      +2.94 V
CPU Fan:  1102 RPM  (min =  998 RPM, div = 8)
Top Fan:   922 RPM  (min =  700 RPM, div = 8)
Back Fan:  922 RPM  (min =  700 RPM, div = 8)
M/B Temp:    +25
Comment 1 Nicolas Mailhot 2005-11-09 04:12:24 UTC
Created attachment 6501 [details]
dmesg
Comment 2 Nicolas Mailhot 2005-11-09 04:13:42 UTC
Created attachment 6502 [details]
lspci
Comment 3 Jean Delvare 2005-11-09 05:18:09 UTC
This is a user-space configuration issue, not a kernel bug.

Ask your motherboard manufacturer for technical data on how the hardware
monitoring inputs of the IT8712F are wired.