Run OFW heat spreader test

Richard A. Smith richard at
Mon Jan 23 00:43:51 EST 2012

On 01/23/2012 12:17 AM, Jerry Vonau wrote:

>> Is this possible?
> I thought with the physical layout of the motherboard, CPU towards the
> outside of the screen lid, that e-book mode would be the hardest on the
> XO in terms of heat dissipation. Given there in no active cooling, is
> the heat spreader test not measuring the difference in temperature
> between the 2 modes of operation?

No.  The heat spreader test runs the cpu in a tight loop and watches the 
rate of change in cpu temp.  If it rises to quickly then the heat 
spreader isn't making good contact.

Richard A. Smith  <richard at>
One Laptop per Child

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