Here's an update on what i've been doing here
I added a +5V wire to the Subway, this has helped with randomness at boot up (its soldered to "Pin 2") : -
I've made a little circuit that controls my top case fans. They aren't overly loud, but I thought it was unecessary for them to be running full pelt. This little board uses Pulse width modulation to keep the voltage level at 12V, but pulses slower of faster (adjustable with a pot), the effect of this is a quieter fan that moves more efficiently than simply dropping off the voltage. I made it based on this information: -
http://www.overclockers.com/forums/showpost.php?p=4253267&postcount=2
Here's a pic!
I replaced the pot with a Thermistor, and put the thermistor on the BV heatsink.
Now the fans start up very quiet, once the BV heats up it drops the resistance on the thermistor hence the fans have quicker pulses sent to them to increase airflow. It still stays very quiet as this is the effect of PWM. The only downside of it is that when the room is very quiet you will notice a feint "ticking" noise.
I'm currently planning to make a 5V version for the BPPC fan (I've also got a less noisy replacement fan on its way).
I've added some jacks for Mic and Aux input to Delfina! :-
Thats it for now folks!
I added a +5V wire to the Subway, this has helped with randomness at boot up (its soldered to "Pin 2") : -
I've made a little circuit that controls my top case fans. They aren't overly loud, but I thought it was unecessary for them to be running full pelt. This little board uses Pulse width modulation to keep the voltage level at 12V, but pulses slower of faster (adjustable with a pot), the effect of this is a quieter fan that moves more efficiently than simply dropping off the voltage. I made it based on this information: -
http://www.overclockers.com/forums/showpost.php?p=4253267&postcount=2
Here's a pic!
I replaced the pot with a Thermistor, and put the thermistor on the BV heatsink.
Now the fans start up very quiet, once the BV heats up it drops the resistance on the thermistor hence the fans have quicker pulses sent to them to increase airflow. It still stays very quiet as this is the effect of PWM. The only downside of it is that when the room is very quiet you will notice a feint "ticking" noise.
I'm currently planning to make a 5V version for the BPPC fan (I've also got a less noisy replacement fan on its way).
I've added some jacks for Mic and Aux input to Delfina! :-
Thats it for now folks!
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