User`s manual

Installation
17
CONNECTORS
Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced IDE and Ultra DMA 66/100/133
controller that provides PIO mode 0~4, Bus Master, and Ultra DMA
66/100/133 functions. You can connect up to four hard disk drives, CD-ROM
and other devices.
The primary hard drive should always be connected to IDE1 as the master
drive. Both IDE drives can connect to a master and a slave drive.
1 1
IDE1 IDE2
If two drives are connected to a single cable, the jumper on the second
drive must be set to slave mode. Refer to the drive documentation supplied
by the vendor for the jumper settings.