Ticket #1331 (closed task)
Opened 9 years ago
ASUS P4B266 crashes when sensor modules loaded in "Turbo1" optimization mode (Examined/Solved - lm_sensors 2.8.0 Linux 2.4.21)
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I am using lm_sensors 2.8.0 on a ASUS P4B266 board (AS100 BACH sensor chip). In
spite of the experimental p4b_smbus hack and the issues of the undocumented ASUS
chip, it works very nicely !!
There is, however, a severe conflict with a particular BIOS setup option. This
report is mainly intended as an urgent warning to all p4b users who want to
install the lm_sensors package.
In the Setup of there board there is an option "Optimization mode", which may be
set to one of: Normal, Turbo1 or Turbo2. There seems to be no documentation
about this option, therefore I have no idea, what it does in detail.
If this is set to Turbo1 when the modules (w83781d, p4b_smbus,i2c_i801) are
loaded, the board becomes extremely unstable!! I had all kinds of horrible
crashes, for instance:
automatic reboot during starting the x-server
sudden blocking of the CM8738 on-board sound chip during playing sound
several SuperGAU crashes (no Kernel messages, everything dead, only hard reboot
When I changed the BIOS option to Normal, no stability problems any more, the
lm_sensor package and everything else working nicely.
On the other hand, without the sensor modules loaded, the Turbo1 setting has
worked well on my computer for more than 1 year without any stability problems.
I did not try the Turbo2 mode, I guess that it would be even worse.
--- thanks for the info.
If you find out any more about what turbo really is, please let us know.