Asus KFN5-Q/SAS - Manual (Page 53)

2-32 Chapter 2: Hardware information
2.8.2 Internal connectors
1. Floppy disk drive connector (34-1 pin FLOPPY1)
This connector is for the provided floppy disk drive (FDD) signal cable.
Insert one end of the cable to this connector, then connect the other
end to the signal connector at the back of the floppy disk drive.
Pin 5 on the connector is removed to prevent incorrect cable connection
when using a FDD cable with a covered Pin 5.
2. IDE connectors (40-1 pin PRI_IDE1)
The onboard IDE connector is for Ultra DMA 133/100/66 signal
cable. There are three connectors on each Ultra DMA 133/100/66
signal cable: blue, black, and gray. Connect the blue connector to
the motherboard’s IDE connector, then select one of the following
modes to configure your device(s).
KFN5-Q/SAS
KFN5-Q IDE Series Connector
KFN5-Q/SAS
KFN5-Q Series Floppy Disk Drive Connector