I done this 12v mod awhile ago > http://i12.photobucket.com/albums/a246/Grim187/12vbottom.jpg
Tonight I decided I wanted to put a switch in so I can have he normal 5v and switch it 12v whenever.
I soldered all the wires, and soldered them to the switch aswell, and tested it with the motherboard outside of the metal housing, it worked. I think put the motherboard back in, dvd drive in, tryed it one more time, and instead of switching between 5v and 12v it was on 12v (or sounded like), all the time, no matter if I switched it or not...
Long story short. I de-soldered ALL the wires so it's completely stock, and now the CPU fan is on 12v all the time (sounds like it) and the GPU fan doesn't work at all!!!
I don't get it. I checked my solder job and it is ACE, I don't understand what is happening ><.
Any help? Or hopefully someone can give me some points to check with a multi-meter so I can see what's happening.
I tested the 12v (yellow) leg and the CPU (black) with a multimeter by putting the black leg on the metal casing to the power, or usb etc (all are grounded from what I've red), and putting the red leg on each of them. The 12v/yellow leg came back as expected, 12v, but so did the black/CPU leg O_o. I really don't understand where it's coming from ><. It's not bridged at all, and why doesn't the GPU fan work?