Alex Scott
- Jul 3, 2014
- 18
- Joined
- Jul 3, 2014
- Messages
- 18
Hey guys
A semi-electronics noob here. I recently turned an old 350 Watt Dell ATX PC power supply into a multi voltage bench power supply for testing basic circuits. I opened up the machine and cut some wires and ran the 3.3v, 5.5v, 12v and ground wires to some terminal posts, and it all works fine! I also installed a switch so I can leave it plugged into the mains constantly. The voltages are all correct and it does indeed provide power (only tested on basic LED circuit so far, nothing that actually consumes a large amount of energy.)
Anyway, in my naivety I have some how stopped the fan working. I assume this is a normal 12V DC PC fan, and I do not want my power supply to overheat. The 2 wires on the fan are all hooked up straight to the board, but I'm guessing there was a connector on the 20 pin plug that goes into the motherboard that controlled the fan that I have severed? Anyway, how do I apply a load to the fan to get it running again? It worked perfectly fine before I messed about with it.
Regards
A semi-electronics noob here. I recently turned an old 350 Watt Dell ATX PC power supply into a multi voltage bench power supply for testing basic circuits. I opened up the machine and cut some wires and ran the 3.3v, 5.5v, 12v and ground wires to some terminal posts, and it all works fine! I also installed a switch so I can leave it plugged into the mains constantly. The voltages are all correct and it does indeed provide power (only tested on basic LED circuit so far, nothing that actually consumes a large amount of energy.)
Anyway, in my naivety I have some how stopped the fan working. I assume this is a normal 12V DC PC fan, and I do not want my power supply to overheat. The 2 wires on the fan are all hooked up straight to the board, but I'm guessing there was a connector on the 20 pin plug that goes into the motherboard that controlled the fan that I have severed? Anyway, how do I apply a load to the fan to get it running again? It worked perfectly fine before I messed about with it.
Regards