Asus P4B-E - Manual (Page 50)

2-28 Chapter 2: Hardware information
3. RAID ATA/100/66/33 connectors (40-1 pin RAID_IDE1, RAID_IDE2)
These connectors support either RAID 0 or RAID 1 configuration
through the onboard RAID controller chip. You can use the RAID
feature to set up a disk array configuration and to support additional
IDE devices. You can install a total of four hard disks, two on each
connector. However, only two can function in a RAID. For a high
performance RAID 0 or RAID 1 configuration, always use two separate
ribbon cables, one for the primary RAID IDE connector and another for
the secondary RAID IDE connector.
Figure 2-37 RAID Connectors
Use the RAID software in the support CD that came with the
motherboard to use the RAID feature.
®
P4B-E
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
RAID_IDE2 Connector
PIN 1
RAID_IDE1 Connector
PIN 1
P4B-E RAID IDE Connectors