From: Guenter Roeck <linux@roeck-us.net>
To: lm-sensors@vger.kernel.org
Subject: Re: [lm-sensors] [PATCH 1/5] hwmon: (coretemp) Drop dependency on PCI for TjMax detection on Atom CP
Date: Wed, 10 Oct 2012 18:13:19 +0000 [thread overview]
Message-ID: <20121010181319.GA14317@roeck-us.net> (raw)
In-Reply-To: <1349816943-17697-2-git-send-email-linux@roeck-us.net>
On Wed, Oct 10, 2012 at 07:00:39AM -0700, Guenter Roeck wrote:
> On Wed, Oct 10, 2012 at 03:44:56PM +0200, Jean Delvare wrote:
> [ ... ]
> >
> > Documentation/hwmon/coretemp says 125°C for Atom 230 and 330. N5xx
> > aren't listed in this document BTW.
> >
> Reminds me ... we have a discrepancy in the code regarding the 230, and use 100
> degrees C instead of 125 for it. Any idea where this is documented ? I wasn't
> able to find definite numbers over the weekend, and I don't recall why I used
> 100 for the 230 when I introduced tjmax_table.
>
Followup on this after some more digging. Datasheets actually claim Tjmax for
both 230 and 330 to be 90 degrees C. 125 degrees C is the shutdown temperature,
which is different (the N4xx/D4xx/D5xx also have a shutdown temperature of 125
degrees C). We do know that we have to use Tjmax of 125 C for the 330 for somewhat
reasonable temperature readings. So the big remaining question is which
temperature is used as calibration point for the 230.
Thanks,
Guenter
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next prev parent reply other threads:[~2012-10-10 18:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-09 21:08 [lm-sensors] [PATCH 1/5] hwmon: (coretemp) Drop dependency on PCI for TjMax detection on Atom CPUs Guenter Roeck
2012-10-10 13:44 ` [lm-sensors] [PATCH 1/5] hwmon: (coretemp) Drop dependency on PCI for TjMax detection on Atom CP Jean Delvare
2012-10-10 13:52 ` Guenter Roeck
2012-10-10 14:00 ` Guenter Roeck
2012-10-10 18:13 ` Guenter Roeck [this message]
2012-10-12 8:40 ` Jean Delvare
2012-10-12 9:01 ` Jean Delvare
2012-10-12 16:48 ` Guenter Roeck
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