lets say for an optical drive, the power cable has four pins. im guessing that there is power (12v?) and ground but what about the other two?im trying to plug a pair or old neon sticks into my car for accent lighting and i need to know where to put these wires at, if they are all neccessary.
The four pin connector that is used to power PC drives supplies two different voltages: +12 volts for the motor +5 volts for the electonics The other two pins are ground pins. ________ / .............. |..1..2..3..4..| |.................| Pin Function 1 +5 V 2 Ground 3 Ground 4 +12 V
