5V Pot mod for PC Power and Cooling 510 Deluxe
Hi i've read with a lot of interest this thread http://www.xtremesystems.org/forums/...ad.php?t=31886 but i would try to find the mod for the 5v rail.
The 5v pot doesn't work as the 3.3 and 12 pot : the lower the resistance is, the higher the rail will be. When we set the pot to the max the resistance in my case is 15ohm and removing this with another 1kohm and setting this to 0ohm gave me only 0.05 volt .
I looked behind the pcb and i find a resistor which changes his value while we are setting the orange pot.
In my case the resistor change from 2.73 Kohm to 2.62 kohm.
I set the orange po to the minimum, i removed this resistor (4.96 kohm) and i soldered a multi turn pot and setted it to the same value.
I tried some setting and i find a sweet spot in setting it to 4.7k which gave me from 5.15 to 5.45v , the fine tuning is always done with the orange pot .
jIf you want more volts on the 5v rail just lower the pot to 4.6k and so on
http://www.webalice.it/fabietto18/4.96b.JPG
http://www.webalice.it/fabietto18/4.70b.JPG
http://www.webalice.it/fabietto18/5.45.JPG
ciao
Fabio :p:
