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2-5-5 IDE1 and IDE2
The IDE connectors are used to connect IDE devices such as Harddisks and CD-
ROM drives to the motherboard. Each connector constitutes an IDE channel, each
channel accepts 2 IDE devices, one Master and one Slave. The IDE 1 connector is
also known as the primary channel, IDE 2 is the secondary channel. Therefore the
primary Master is the IDE device connected to IDE1 as Master, the primary Slave
is the IDE device conneced to IDE 1 as Slave. Jumpers on the IDE device
determine Master and Slave settings. Your harddisk or CD-ROM should have a
sticker with jumper settings. Make sure that you set these jumpers correct. Please
use the following advice as reference:
If you have only device connected to an IDE connector, always set it as
Master.
If you have one HDD and CD-ROM in your system, then connect the HDD
to IDE1 as Master, and the CD-ROM to IDE 2 as Master
If you have one Harddisk and one CD-ROM connected to the same IDE
connector set the HDD to Master and the CD-RAM to Slave.
IDE1
IDE2
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