Changed a stock HP psu to a Corsair 750 modular psu. Have an AMD motherboard with an A10 chip. To the motherboard from the original power supply...had a 24 pin connector and an "atx cpu" 4 pin connector labeled P2. The new modular Corsair came with 6 cables to use plus the 24 pin that has a removable 4 pin section...and another connector which is a 6 or 8 pin. I need to find this missing 4 pin connector for the atx cpu port. Help please?