Asus P4P800-MX P4P800-MX user's manual - Page 31

2. IDE connectors (40-1 pin PRI_IDE1, SEC_IDE1) This connector supports the provided UltraATA100/66/33 IDE ribbon cable. Connect the cable's blue connector to the primary (recommended) or secondary IDE connector, then connect the gray connector to the UltraATA100/66/33 slave device (hard disk drive) and the black connector to the UltraATA100/66/33 master device. It is recommended that you connect non-UltraATA100/66/33 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 UltraATA100/66/33 devices, purchase another UltraATA100/66/33 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. 1. Pin 20 on each IDE connector is removed to match the covered hole on the UltraATA cable connector. This prevents incorrect orientation when you connect the cables. 2. The hole near the blue connector on the UltraATA100/66/33 cable is intentional. 3. For UltraATA100/66/33 IDE devices, use the 80-conductor IDE cable. P4P800-MX PRI_IDE1 SEC_IDE1 NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1. ® P4P800-MX IDE Connectors PIN 1 Important note when using legacy OS Refer to page 1-22 on how to configure P-ATA and S-ATA devices if you installed a legacy operating system (e.g. MS-DOS, Windows® 98/Me/NT4.0®). Refer to the Parallel ATA and Serial ATA device configurations on the next page. ASUS P4P800-MX motherboard 1-21