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Date: Mon, 14 Oct 2002 19:54:15 -0700
To: Andi Kleen <ak@suse.de>, "Feldman, Scott" <scott.feldman@intel.com>
From: Jonathan Lundell <linux@lundell-bros.com>
Subject: Re: Update on e1000 troubles (over-heating!)
Cc: "'Ben Greear'" <greearb@candelatech.com>,
       linux-kernel <linux-kernel@vger.kernel.org>,
       "'netdev@oss.sgi.com'" <netdev@oss.sgi.com>
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At 4:37am +0200 10/15/02, Andi Kleen wrote:
>  > Ben, I checked the datasheet for the part shown in the lspci dump, and it
>>  shows an operating temperature of 0-55 degrees C.  You said you measured 50
>>  degrees C, so you're within the safe range.  Did the fans help?
>
>The thermometer he used likely showed a much lower temperature than what was
>actually on the die. 5-10 C more are not unlikely. It's hard to measure chip
>temperatures accurately without an on die thermal diode or special kit.
>So I would expect that when an external normal thermometer showed 50C
>it was already operating out of spec.

The datasheet's for the card, so the operating temperature is surely 
ambient, not die temperature. "Ambient measured how?" would be a 
reasonable question, though.
-- 
/Jonathan Lundell.
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