Ticket #2278 (new defect)

Opened 9 months ago

Last modified 7 months ago

k8temp shows wrong temperature

Reported by: ticket Assigned to: somebody
Priority: major Milestone:
Component: sensors Version: 2.10.5
Keywords: k8temp wrong Cc: udovdh@xs4all.nl

Description

Gigabyte M56S-S3 board AMD X2 BE-2350 CPU Fedora 8

As you can see below the k8temp temperatures are wrong. Sensors.conf is default, version 2.10.5-1.

# sensors k8temp-pci-00c3 Adapter: PCI adapter temp1: -12°C temp2: -23°C temp3: -21°C temp4: -16°C

it8716-isa-0290 Adapter: ISA adapter VCore: +0.99 V (min = +0.00 V, max = +4.08 V) VDDR: +1.89 V (min = +0.00 V, max = +4.08 V) +3.3V: +3.30 V (min = +0.00 V, max = +4.08 V) +5V: +4.84 V (min = +0.00 V, max = +6.85 V) +12V: +11.97 V (min = +0.00 V, max = +16.32 V) in5: +3.18 V (min = +0.00 V, max = +4.08 V) in6: +0.10 V (min = +0.00 V, max = +4.08 V) 5VSB: +4.92 V (min = +0.00 V, max = +6.85 V) VBat: +3.04 V fan1: 617 RPM (min = 0 RPM) fan2: 0 RPM (min = 0 RPM) temp1: +30°C (low = +127°C, high = +127°C) sensor = thermistor temp2: +33°C (low = +127°C, high = +127°C) sensor = thermistor temp3: +22°C (low = +127°C, high = +127°C) sensor = diode vid: +1.000 V

Change History

02/05/08 14:43:31 changed by ticket

While this is acknowledged as known problem with 'latest AMD CPUs', at lm-sensors.org 'Devices' page, here is my observation on AMD X2 4200+ I am just testing. The readings are plain wrong, BUT they react to cpu load. My opinion is they are not beyond repair, and maybe the offset value can be obtained either by testing or some other way. Just my $.02...

Thanks, Bob, NJ 

root@user-desktop:/home/user# sensors --ver
sensors version 2.10.4 with libsensors version 2.10.4

root@user-desktop:/home/user# sensors
k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp:
              +1°C
Core0 Temp:
              -3°C
Core1 Temp:
              +2°C
Core1 Temp:
              -3°C

root@user-desktop:/home/user# stress --cpu 8
stress: info: [6883] dispatching hogs: 8 cpu, 0 io, 0 vm, 0 hdd

root@user-desktop:/home/user# sensors
k8temp-pci-00c3
Adapter: PCI adapter
Core0 Temp:
             +19°C
Core0 Temp:
             +18°C
Core1 Temp:
             +21°C
Core1 Temp:
             +20°C


root@user-desktop:/home/user# uname -a
Linux user-desktop 2.6.22-14-generic #1 SMP Thu Jan 31 23:33:13 UTC 2008 x86_64 GNU/Linux