Hello and thanks for the help! On Thu, 25 Nov 2004, Jean Delvare wrote: > > This reminds me: about a year ago my CPU fan burnt down. Then too, > > shortly after booting the PC, it slowed down. Then by accident I > > noticed in BIOS CPU temperature 98 deg C. With a new fan problem > > disappeared. > > Wow, 98, no less. You're lucky it didn't catch on fire, you know. Yep, I do:-) I read some hot reports about hot AMDs right after that adventure:-) > There were some significant changes to the via686a driver in 2.6.6 and > 2.6.7. > > 2.6.6: Limit initialization was removed from the driver. The same was > done for most other drivers. The limits have to be set by either the > BIOS or user-space, not kernel drivers. Also, chip initialization is now > less agressive (previous version would possibly arbitrarily overwrite > BIOS settings). > > 2.6.7: Conversion formulas were reworked for a better accuracy. Errors > were previously introduced by incorrect rounding. > > I think that the changes in 2.6.6 are the ones affecting you. In the meantime I tried 2.6.5 - same behaviour as 2.6.7. > > Yes, some coefficients are definitely wrong. Here are a > > couple of snapshots: > > > > via686a-isa-e200 > > Adapter: ISA adapter > > CPU core: +1.09 V (min = +2.00 V, max = +2.50 V) ALARM > > +2.5V: +1.16 V (min = +3.10 V, max = +1.57 V) ALARM > > I/O: +3.40 V (min = +4.13 V, max = +4.13 V) ALARM > > +5V: +5.55 V (min = +6.44 V, max = +6.44 V) ALARM > > +12V: +4.81 V (min = +15.60 V, max = +15.60 V) ALARM > > CPU Fan: 5443 RPM (min = 0 RPM, div = 2) > > P/S Fan: 0 RPM (min = 0 RPM, div = 2) > > SYS Temp: +45.4 C (high = +45 C, hyst = +40 C) ALARM > > CPU Temp: +34.5 C (high = +60 C, hyst = +55 C) > > SBr Temp: +28.4 C (high = +65 C, hyst = +60 C) > > Blame your BIOS! It did not properly configure voltage limits, among > others. BTW, Vcore, +2.5V and +12V look awfully wrong anyway. I/O and > +5V are acceptable but even +5V is a bit too high IMHO. Never heard of > your motherboard model before, seems to be a rare one. Maybe Asus didn't > put much support on it. Well, don't know how rare it is - I did find it on the ASUS site. > Notice the ALARM in SYS Temp, which is probably causing the system to > throttle. Yep. However, I saw ALARM without throttling sometimes too. > > via686a-isa-e200 > > Adapter: ISA adapter > > CPU core: +1.09 V (min = +2.00 V, max = +2.50 V) ALARM > > +2.5V: +1.16 V (min = +3.10 V, max = +1.57 V) ALARM > > I/O: +3.40 V (min = +4.13 V, max = +4.13 V) ALARM > > +5V: +5.55 V (min = +6.44 V, max = +6.44 V) ALARM > > +12V: +4.81 V (min = +15.60 V, max = +15.60 V) ALARM > > CPU Fan: 5487 RPM (min = 0 RPM, div = 2) > > P/S Fan: 0 RPM (min = 0 RPM, div = 2) > > SYS Temp: +45.2 C (high = +91 C, hyst = +40 C) ALARM > > CPU Temp: +34.4 C (high = +60 C, hyst = +55 C) > > SBr Temp: +28.4 C (high = +65 C, hyst = +60 C) > > > > Notice how SYS Temp high changed... > > Did it change *on its own*? Hm, at least, I certainly didn't do anything to change it. > Weird. Note that 91 = 45 << 1 + 1. I wonder > if it could be some kind of read error. Will the value change Sorry? Did you mean "will it change again after that?" Well, not sure any more, but, I think, it did. > > Can my guesses be correct and how can the situation be fixed? > > Pick the latest default configuration file for sensors here: > http://www2.lm-sensors.nu/%7Elm78/cvs/lm_sensors2/etc/sensors.conf.eg > Save as /etc/sensors.conf, edit the via686a-* section, especially the > "set temp1_high" and set temp1_hyst" values. I'd suggest: > > set temp1_hyst 55 > set temp1_over 60 > > Save the changes and run "sensors -s". Your system should hopefully be > back to full speed right after that. So all you have to do is make sure > that "sensors -s" is called after you load the via686a driver at boot > time. Indeed! Just modifying these 2 values in my sensors.conf brought the system back to normal under 2.6.9! I'll get the latest config later. Thanks! > You should take a look at the hardware monitoring options in your BIOS > setup screen if it has any. Maybe you can configure the boot value of > temp1_high directly there, and it may provide hints about voltages as > well. In BIOS one can only monitor sensors. Thanks Guennadi --- Guennadi Liakhovetski
