Pin 1 and Pin 2 generally manage the Hard Drive Activity LED (HD_LED).
2 4 6 8 10 12 14 . . . . . . . . . . . . . . 1 3 5 7 9 11 13 Use code with caution. Pins 5 and 7 Power LED: Pins 1 and 3 HDD LED: Pins 2 and 4
Right of CPU. Channel A/B (Use 1st and 3rd slots for dual-channel, typically blue/black pairing). 24-Pin ATX Power: Located right edge (Standard). 4-Pin ATX CPU Power: Top left of the CPU socket.
Warning: Forcing a 24-pin connector or using an incorrect adapter will permanently short out the motherboard circuitry. 4. Front Panel Header Pinouts