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From: Phillip Susi <psusi@cfl.rr.com>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] [PATCH v4 00/10] hwmon: (w83627ehf) Add support
Date: Wed, 23 Feb 2011 02:05:45 +0000	[thread overview]
Message-ID: <4D646B79.4070109@cfl.rr.com> (raw)
In-Reply-To: <1297712143-7431-1-git-send-email-guenter.roeck@ericsson.com>

On 02/22/2011 01:31 PM, Ian Dobson wrote:
> You can add a tested by ian dobson (i.dobson@planet-ian.com) for a
> nct6776f on a Asus p8p67 pro

Same board here.  Driver seems to work well, though I'm still trying to 
figure out why pwm1 seems to affect 2 of the 3 case fans I have in 
addition to the cpu fan.  If I set pwm1 to zero, fan1 stops as expected, 
but so does does fan3 according to the inputs.  I visually can see 
though, that front and rear fans have stopped, but the top fan is still 
going.  All of the case fans are 3 pin.  Fans 2 and 3 still show 
movement according to the inputs when pwm1 is off, but I can only see 
one of the 4 fans moving.

> I had a look at the tacho signal from the CPU fan with my oscilloscope
> and sometimes I see a small dropout during high part of the signal. The
> signal doesn't drop to 0, just about 30-50%. Do you know the switching
> point for tacho signal? In the documentation they talk about a TTL
> signal so low is below 20% and high is over 50% and the fan is
> outputting as signal in the "undefined area" every so often.

That sounds like a bad fan.  I'll have to borrow a scope from work and 
check mine.  Will let you know the results when I do.

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  parent reply	other threads:[~2011-02-23  2:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-14 19:35 [lm-sensors] [PATCH v4 00/10] hwmon: (w83627ehf) Add support for Guenter Roeck
2011-02-22 16:16 ` [lm-sensors] [PATCH v4 00/10] hwmon: (w83627ehf) Add support Guenter Roeck
2011-02-22 18:31 ` Ian Dobson
2011-02-22 21:19 ` Guenter Roeck
2011-02-23  2:05 ` Phillip Susi [this message]
2011-02-23  2:46 ` Guenter Roeck
2011-02-23  5:00 ` Phillip Susi
2011-02-23  5:53 ` Guenter Roeck
2011-02-23 15:38 ` Phillip Susi
2011-02-23 16:22 ` Guenter Roeck
2011-02-23 18:33 ` Phillip Susi
2011-02-23 18:49 ` Guenter Roeck
2011-02-23 19:03 ` Jean Delvare
2011-02-23 19:09 ` Phillip Susi
2011-02-23 20:32 ` Jean Delvare

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