Richard (et al.) -
Please keep in mind that early ramp units of XO-1.5 were sent to Australia, and
they are different (specifically with respect to the heat spreader) than all
the production units that follow.
- Ed
On Jan 23, 2012, at 7:54 AM, Richard A. Smith wrote:
> On 01/23/2012 01:32 AM, Sridhar Dhanapalan wrote:
>
>> On 23 January 2012 17:20, James Cameron<[email protected]> wrote:
>>> I thought you were doing this test to detect early units that may have
>>> a failed heat spreader, and you were doing it at the time of reflashing
>>> because that's when you had some control.
>>
>> Yes, that's the primary reason. Our initial batch of XO-1.5s have an
>> inefficient heat spreader. They've been burning out, and replacing the
>> motherboards is getting expensive and time consuming. We'd like to
>> detect potentially faulty units early, and recommend a heat spreader
>> change for them.
>
> Hmmm... Something else is the problem here. You can't damage the processor
> via thermal overload because it has an automatic clock back off. If you have
> motherboards that are failing its not due to a bad heat spreader. At worst
> all you would get would be hangs.
>
> Can you acquire the serial number of the failed motherboards or is that not
> lost?
>
> --
> Richard A. Smith <[email protected]>
> One Laptop per Child
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