IBM 6623 User Manual
v
The
drives
that
are
preinstalled
in
your
computer
come
with
power
and
signal
cables
attached.
If
you
replace
any
drives,
remember
which
cable
is
attached
to
which
drive,
or
label
the
cables.
v
When
you
install
a
drive,
make
sure
that
one
of
the
signal-cable
connectors
is
connected
to
the
drive
and
that
the
connector
at
the
other
end
of
the
signal
cable
is
connected
to
the
system
board.
v
The
computer
has
one
IDE
bus,
which
is
primary.
v
If
you
have
only
one
IDE
device
on
a
cable,
it
must
be
set
as
a
master
device.
The
following
cables
are
provided:
v
Power
cables:
Four-wire
power
cables
connect
the
drives
to
the
power
supply.
At
the
end
of
these
cables
are
plastic
connectors
that
attach
to
different
drives;
these
connectors
vary
in
size.
With
Serial
ATA
drives,
you
can
use
either
a
four-wire
power
cable
or
a
five-wire
Serial
ATA
power
cable,
but
do
not
use
both
at
the
same
time
(use
one
or
the
other).
v
Signal
cables:
Signal
cables
typically
are
flat
cables,
also
called
ribbon
cables,
that
connect
IDE,
Serial
ATA,
SCSI,
and
diskette
drives
to
the
system
board.
Two
or
three
types
of
signal
cables
come
with
your
computer:
–
IDE:
The
wider
IDE
signal
cable
has
three
connectors.
One
of
these
connectors
is
attached
to
the
drive,
one
is
a
spare,
and
the
third
is
attached
to
the
primary
or
secondary
IDE
connector
on
the
system
board.
The
spare
connector
can
be
used
to
connect
additional
IDE
drives
to
your
computer.
Note:
The
optical
drive
is
attached
to
an
ATA
100
signal
cable.
ATA
100
signal
cables
are
color-coded.
The
blue
connector
is
connected
to
the
system
board.
The
black
connector
is
connected
to
the
master
IDE
device.
The
gray
middle
connector
is
connected
to
the
subordinate
IDE
device.
–
Serial
ATA:
The
narrower,
black
signal
cable
has
two
connectors.
One
is
connected
to
the
SATA
drive,
and
the
other
is
connected
to
the
connector
on
the
system
board.
Each
SATA
drive
comes
with
a
cable.
If
you
install
an
additional
SATA
drive,
you
will
need
an
additional
cable.
–
SCSI:
The
following
cables
can
be
used
to
attach
SCSI
devices
to
the
integrated
SCSI
controller
on
the
system
board:
-
An
Ultra320
twisted
ribbon
cable
connects
the
internal
Ultra320
SCSI
hard
disk
drive
to
the
SCSI
connector
on
the
system
board.
This
cable
has
four
additional
connectors
for
attaching
more
internal
SCSI
devices.
-
A
round
SCSI
cable
connects
external
SCSI
devices
to
the
integrated
SCSI
controller
on
the
system
board.
For
more
information
about
connecting
SCSI
devices,
see
the
SCSI
documentation.
Chapter
2.
Installing
the
hardware
31