12
A maximum of two devices can be connected to each of the two connectors using a 40 pin flat ribbon cable. You
can therefore connect a total of four E-IDE devices to your PC.
Generally speaking, a hard disk is connected to the primary connector and a CD-ROM device to the secondary
connector. The devices, which are connected to the E-IDE connectors, should be correctly set up so that the
computer is able to distinguish between them. This setting is called the MASTER/SLAVE setting and it is usually
modified using a jumper switch on the back of the device.
Master
Master
Slave
Slave
Primary
Secondary
Motherboard
less than
15,2 cm
less than 45 cm
Master
Slave
Primary
connector
Master
le
ss
t
h
a
n
1
5
.2
c
m
Motherboard
Secondary
connector
Slave
le
ss
t
h
a
n
4
5
c
m