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headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4694: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4695: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) [phpBB Debug] PHP Warning: in file [ROOT]/includes/functions.php on line 4696: Cannot modify header information - headers already sent by (output started at [ROOT]/includes/functions.php:3823) 8devices Community - View topic - Heat/power question
At idle with wifi turned off, my board draws 130mA@12v (on the dev board) and is rather warm to the touch. Has anyone played around with dropping the cpu frequency/etc to lower that current? Anybody found a good heatsink too?
23 Dec 2011, 01:06
gedass
Joined: 07 Dec 2011, 16:01 Posts: 525 Location: Lithuania
Does the Ralink SoC support power management? Or is there another way to reduce power draw?
My Carambola draws a quite constant 275mA @ 3.3V with Wi-Fi on even when it is doing nothing.
Edit: Max. power draw seems to be around 360mA when connecting to Carambola via SSH. Enabling power management for wireless using 'iwconfig wlan0 power on' doesn't save anything, as does reducing the transmit power.
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