high temperature problem

Oleksij Rempel linux at rempel-privat.de
Fri Apr 19 10:32:31 EDT 2013


Am 11.04.2013 09:28, schrieb Oleksij Rempel:
> Am 11.04.2013 02:30, schrieb Sujith Manoharan:
>> Oleksij Rempel wrote:
>>> i have two different adapters with ar7010. One of it gets pretty warm. I
>>> assume it is clocked to higher speed. How is it controlled? By config
>>> pins with pull up/down resistors? Or by registers?
>>> How about AR9271?
>>
>> It is not only clock speed that can make the card get hot, there are
>> various
>> other factors too. Most likely, the HW code in the host driver has a bug.
>>
>> This is one example:
>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=69bdacc8fbac32e4dc804ab13cafe3c1bbdcba9d
>>
>
> That is interesting. Because AR7010+AR9280 seems to be warmer than
> AR7010+AR9287. I will try to get more specific results that just - it
> fill warm and other is warmer :)

So,
i got an IR-thermometer (Voltcraft IR 250-1LED)

results are fallowing:

- room t: 22C

AR7010+AR9287:
- AR7010 - 48C
- AR9287 - 50C

AR7010+AR9280:
- AR7010 - 60C
- AR9280 - 64C ... on active load i get even 68C

i think that is really worm :)

PS: renaming this topic to "high temperature problem" ;)
-- 
Regards,
Oleksij



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