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E-7
WHEN USING A PRIMARY IDE CONTROLLER
Most PCs
provide
one
IDE cable
to
support
two
devices
(one
for hard
disk,
the other for
a
second hard disk
or a
CD-ROM
drive).
This IDE cable
originates
either
on
the motherboard
or on a
controller card. This controller is termed the
primary
IDE
controller,
and the hard
disk attached that contains the
operating
system
for
boot-up
is
set
up
as
the
Primary
Master. Your CD-ROM drive should be
set to
the Slave mode.
Hard Disk Controller Card
(This
card may be
a
connector
on
the
Motherboard)
Primary
IDE Channel
Primary
Slave
(Hard
Disk
or
CD-ROM
Drive)
Primary
Master
(Hard
Disk for
Boot-up)
Card Slot
Motherboard
Figure
4.
Primary
Controller
system
Configuration
Note:
Many
older 1X and 2X CD-ROM drives used
a
40
pin
controller card that
were
not
IDE
compatible.
These
were
proprietary
interface cards for
use
with
a
particular
model CD-ROM Drive.
Many
older
Sony,
Panasonic,
and Mitsumi drives used 40
pin proprietary
interface cards. If you
are
upgrading
from
an
older CD-ROM
drive,
your
new
CD-ROM will
not
work
on a
proprietary
interface card. You will need
to
buy
a
secondary
IDE controller card.
CRD-8322
eng
9/20/88
3:00
PM
Page
7
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