Asus P4SGX-MX Motherboard DIY Troubleshooting Guide - Page 26

1.12 Connectors This section describes and illustrates the internal connectors on the motherboard. 1. Floppy disk drive connector (34-1 pin FLOPPY1) This connector supports the provided floppy drive ribbon cable. After connecting one end to the motherboard, connect the other end to the floppy drive. (Pin 5 is removed to prevent incorrect insertion when using ribbon cables with pin 5 plug). FLOPPY1 ® P4SGX-MX PIN 1 NOTE: Orient the red markings on the floppy ribbon cable to PIN 1. P4SGX-MX Floppy Disk Drive Connector 2. IDE connectors (40-1 pin PRI_IDE1, SEC_IDE1) This connector supports the provided UltraDMA133/100/66 IDE hard disk ribbon cable. Connect the cable's blue connector to the primary (recommended) or secondary IDE connector, then connect the gray connector to the UltraDMA133/100/66 slave device (hard disk drive) and the black connector to the UltraDMA133/100/66 master device. It is recommended that you connect non-UltraDMA133/100/66 devices to the secondary IDE connector. If you install two hard disks, you must configure the second drive as a slave device by setting its jumper accordingly. Refer to the hard disk documentation for the jumper settings. BIOS supports specific device bootup. If you have more than two UltraDMA133/100/66 devices, purchase another UltraDMA133/100/66 cable. You may configure two hard disks to be both master devices with two ribbon cables - one for the primary IDE connector and another for the secondary IDE connector. Pin 20 on each IDE connector is removed to match the covered hole on the UltraDMA cable connector. This prevents incorrect orientation when you connect the cables. NOTE: Orient the red markings on the IDE ribbon cable to PIN 1 SEC_IDE1 PRI_IDE1 1-16 ® P4SGX-MX P4SGX-MX IDE Connectors PIN 1 PIN 1 Chapter 1: Product introduction