> From: Jean Delvare [mailto:khali@xxxxxxxxxxxx] > Subject: Re: Biostar TA880GB+ Motherboard Information > > > Both in0_input and in1_input vary between 2.940 and 2.952. They vary > > independently, and I only observed in0_input=2.940 under heavy CPU > load. > > > > I only observed in1_input=2.940 under heavy IO load. > > Hu. If both have exactly the same raw value, it's obviously difficult to > distinguish between them. And the only other Biostar configuration file > we have has a completely different mapping, so it won't help. > > Your only chance would be to temporarily change your hardware setup to > slightly alter the load. For example adding or removing a hard disk > drive, or using a different PSU. I tried adding/removing a load from the 12V line composed of a cold cathode tube and all the fans I could control in the case, totaling about 10-15W of draw on the +12V line and none on the +5V. Removing everything brought up the in0 value to 2.964V. Attempts to change the BIOS value were unsuccessful as I have no control over the CPU power draw while in BIOS. I hooked up a multimeter and I was unable to get voltage changes that caused the needle to move. Because adjusting the load on the 12V line changed in0 but not in1 I think in0 is 12V and in1 is 5V. I think the reason I can't influence the voltages much is that the power supply is rather excessive for what it powers. It draws ~125W at the wall and it's a 600W power supply. It's +12V rail is speced to power multiple graphics cards, not a low power Athlon II CPU and some fans. When I get my SATA card back from RMA I can try adding drives - right now I'm maxed out. > I am a little surprised by the raw values BTW... 2.952 V is really close > to the ADC max of 3.060 V. This surprises me too. Based on the values and an ADC max of 3.060 the sensors would max out at a voltage of 5.8-6.1% over the nominal voltage. Iirc, the power supply spec allows +/- 5%, so that seems to be cutting it a bit fine. I suppose it works if your power supply is within spec, but I bet there's lots out there more than 5% off. _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors
