Hello Ben :-) It's been a while and none of the experts have responded to you so I'll chip in. It is not unusual for motherboard designers to leave several I/O chip pins unconnected so your hypotheses about "Fake" temp and SYSFAN RPM are probably correct. If your K8 CPU is revision F or G, the CPU core temperatures are not usable. In AMD's "Revision Guide for AMD NPT Family 0Fh Processors" it says "The internal thermal sensor ... is inaccurate". This may be the reason for many reports of k8temp giving absurdly low CPU core temperatures and for there being no generally accepted computation to derive actual temperature from the raw data. The workaround is to ignore core temperatures and use the CPU case temperature as was done before core temperatures were available. If your K8 CPU is a later revision the core temperatures are usable but not intuitive. The temp for each CPU core is the average of its two sensor circuits _plus an offset value_. For details, including sample lm-sensors configuration, see http://forums.opensuse.org/archives/sls-archives/archives-suse-linux/archive s-hardware-support/381563-lm-sensors-2.html#post1793098. cpu0_vid is (was?) not dynamic under the current lm-sensors implementation; the value shown is the value at start up. Best Charles -----Original Message----- Message: 1 Date: Mon, 16 Mar 2009 11:28:40 +0000 From: Ben Norwood <mittfh at googlemail.com> Subject: ECS GeForce 6100 PM-M2 - labels/calculations To: lm-sensors at lm-sensors.org Message-ID: <49BE37E8.90301 at googlemail.com> Content-Type: text/plain; charset=UTF-8; format=flowed My Motherboard is an ECS GeForce 6100 PM-M2, with a IT8726 I/O chip. After extensive web searching, I haven't (yet!) discovered the appropriate labels or calculations for the readings given in sensors. Vcore and VDIMM are based on readings from the BIOS, the 3.3V label seemed logical, the M/B temp is based on Systemp in BIOS, and Fake Temp is so called because it reads a constant 25?C - even when I'm torturing the CPU! Talking of temperatures, they do seem a little dodgy - is the CPU really 10?C cooler than room temp, and the motherboard 10?C hotter? Oh, and I have a fan hooked up to the SYSFAN header (which gives an RPM reading if I plug it into the CPUFAN header), but it looks as though ECS haven't connected the RPM pin to the chip :( If anyone can make head or tail of this lot I'd be grateful! [ben at LinuxBox ~]$ sensors k8temp-pci-00c3 Adapter: PCI adapter Core0 Temp: +13.0?C Core0 Temp: +3.0?C Core1 Temp: +6.0?C Core1 Temp: +2.0?C acpitz-virtual-0 Adapter: Virtual device temp1: +16.0?C (crit = +70.0?C) it8716-isa-0290 Adapter: ISA adapter Vcore?: +1.30 V (min = +0.00 V, max = +4.08 V) in1: +2.48 V (min = +0.00 V, max = +4.08 V) VDIMM?: +1.84 V (min = +0.00 V, max = +4.08 V) +3.3V?: +3.31 V (min = +0.00 V, max = +4.08 V) in4: +1.20 V (min = +0.00 V, max = +4.08 V) in5: +1.15 V (min = +0.00 V, max = +4.08 V) in6: +2.94 V (min = +0.00 V, max = +4.08 V) in7: +3.06 V (min = +0.00 V, max = +4.08 V) VBat: +3.01 V fan1: 2360 RPM (min = 11 RPM) fan2: 0 RPM (min = 0 RPM) CPU temp: +16.0?C (low = -1.0?C, high = +127.0?C) sensor = thermal diode M/B temp: +35.0?C (low = -1.0?C, high = +127.0?C) sensor = transistor Fake temp: +25.0?C (low = -1.0?C, high = +127.0?C) sensor = transistor cpu0_vid: +1.525 V
