Hi Nicolas,
> I confirm that 0x7f is full speed.
So at least the polarity bit is correct, and Gigabyte isn't to blame.
> > Once you know if the polarity is correct, you can try different
> > values of PWM between 0x00 and 0x7F and see how exactly your fan
> > reacts to them.
>
> That's where th
On Thu, 20 Jan 2005, Jean Delvare wrote:
> > In the mean time I'm willing to try out things
> > with isaset if you can suggest basic tests (easier than upgrading kernel
> > for the time being).
>
> The best test I can think of is to switch your CPU fan to manual PWM
> mode. To do that, write 0x40
Hi Nicolas,
> It looks like only temp3 is used for the CPU temperature, fan1 is the
> CPU fan and fan2 the case fan.
This is coherent with your chip configuration.
> I experimented with isaset tweaking individual bits in register 0x14
> (blindly I confess, haven't read the datasheet) and flippi
On Thu, 20 Jan 2005, Jean Delvare wrote:
>
> Hi Nicolas,
>
> > > I would also appreciate a dump of the chip (isadump 0x295 0x296 unless
> > > it lives at some uncommon address) to confirm the guess.
> >
> > 0 1 2 3 4 5 6 7 8 9 a b c d e f
> > 00: 11 10 80 00 37 ff 00 37 ff 07
Hi Nicolas,
> > I would also appreciate a dump of the chip (isadump 0x295 0x296 unless
> > it lives at some uncommon address) to confirm the guess.
>
> 0 1 2 3 4 5 6 7 8 9 a b c d e f
> 00: 11 10 80 00 37 ff 00 37 ff 07 13 5b 00 51 40 ff
> 10: fe fe ff 71 d7 fe 7f fe 00 00 ff
On Wed, 19 Jan 2005, Jean Delvare wrote:
> Hi Nicolas,
>
> > FWIW, I have a Gigabyte motherboard with an it87 chip too. Reading
> > about this it87 polarity thing I'm suspecting something is really
> > wrong here:
> >
> > When system is idle, the sensors report shows:
> > CPU temp = +25°C and
Hi Nicolas,
> FWIW, I have a Gigabyte motherboard with an it87 chip too. Reading
> about this it87 polarity thing I'm suspecting something is really
> wrong here:
>
> When system is idle, the sensors report shows:
> CPU temp = +25°C and CPU fan = 2136 RPM (and rather noisy)
>
> When system is
On Mon, 10 Jan 2005, Jean Delvare wrote:
> When I get this, I'll compare with the datasheets so as to understand
> how your chip is configured (or left unconfigured) by your BIOS. This
> will both help me propose a workaround in the it87 driver and explain
> the Gigabyte support what I think they
Hi Simone,
> While we're at it, the fan speed sensor reports an absurd speed when
> the fan is driven with very low but non-zero pwm values. For
> example, driving it with pwm=2 I get speeds over 50K rpms, while of
> course the fan is stopped (almost?). This could be just an hardware
> sensit
Hi,
While we're at it, the fan speed sensor reports an absurd speed when the fan
is driven with very low but non-zero pwm values. For example, driving it
with pwm=2 I get speeds over 50K rpms, while of course the fan is stopped
(almost?). This could be just an hardware sensitivity problem in
Hi Simone,
> > 2* In the logs, you should see an information line with the chip
> > type, address and revision.
> > 3* Still in the logs, you should see a warning about your BIOS being
> > broken and PWM being disabled as a consequence.
>
> Confirmed, but it looks like there's a missing linefeed
On Friday 14 January 2005 15:40, Jean Delvare wrote:
> Kernel 2.6.11-rc1-mm1 is just out, which does contain the latest updates
> to the it87 driver. I would like you to test them. What you should see:
> 1* When loading the it87 driver, the fans should not change speeds.
confirmed.
> 2* In the l
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