Power
and
signal
cables
for
internal
drives
Your
server
uses
cables
to
connect
IDE
and
SCSI
devices
to
the
power
supply
and
to
the
system
board.
The
following
cables
are
provided:
v
Four-wire
power
cables
connect
the
drives
to
the
power
supply.
At
the
end
of
these
cables
are
plastic
connectors
of
various
sizes
that
can
be
attached
to
different
drives.
v
Flat
signal
cables,
also
called
ribbon
cables,
connect
IDE,
SCSI,
and
diskette
drives
to
the
system
board.
Two
or
three
sizes
of
ribbon
cables
come
with
your
server:
–
The
wider
IDE
signal
cable
has
two
or
three
connectors.
-
If
the
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.
-
If
the
cable
has
two
connectors,
one
of
these
connectors
is
attached
to
the
hard
disk
drive,
and
the
other
is
attached
to
the
primary
or
secondary
IDE
connector
on
the
system
board.
Note:
The
CD-ROM
drive
is
attached
to
an
ATA
66
signal
cable.
The
hard
disk
drive
is
attached
to
an
ATA
100
signal
cable.
ATA
66
and
ATA
100
signal
cables
are
color-coded.
The
blue
connector
attaches
to
the
system
board.
The
black
connector
attaches
to
the
primary
device.
If
the
cable
has
a
gray
middle
connector,
it
attaches
to
the
secondary
device.
If
you
are
installing
a
hard
disk
drive,
you
must
change
the
switch
setting
on
the
CD-ROM
drive
to
secondary
and
change
the
connector
used
for
the
CD-ROM
drive
to
the
gray
middle
connector.
–
The
narrower
signal
cable
has
two
connectors,
one
to
attach
to
the
diskette
drive,
and
the
other
to
attach
to
the
connector
(FDD1)
on
the
system
board.
–
If
your
server
comes
with
a
SCSI
connector
on
the
extender
board
and
SCSI
hard
disk
drive,
an
Ultra160
twisted
ribbon
cable
connects
the
internal
Ultra160
SCSI
hard
disk
drive
to
the
SCSI
connector
on
the
PCI
extender
board.
This
cable
has
two
additional
connectors
for
attaching
more
internal
SCSI
devices.
To
locate
connectors
on
the
system
board,
see
“System
board
internal
cable
connectors”
on
page
35.
Review
the
following
information
before
connecting
power
and
signal
cables
to
internal
drives:
v
The
drives
that
are
preinstalled
in
your
server
come
with
power
and
signal
cables
attached.
If
you
replace
any
drives,
remember
which
cable
is
attached
to
which
drive.
v
When
you
install
a
drive,
ensure
that
the
drive
connector
at
one
end
of
the
signal
cable
is
connected
to
the
drive
and
that
the
drive
connector
at
the
other
end
is
connected
to
the
system
board.
v
If
you
have
only
one
IDE
device
on
a
cable,
it
must
be
set
as
a
primary
device.
v
If
two
IDE
devices
are
used
on
a
single
cable,
one
must
be
designated
as
the
primary
device
and
the
other
as
the
secondary
device;
otherwise,
the
server
might
not
recognize
some
of
the
IDE
devices.
The
primary
and
secondary
designation
is
determined
by
switch
or
jumper
settings
on
each
IDE
device.
v
If
two
IDE
devices
are
on
a
single
cable
and
only
one
is
a
hard
disk
drive,
the
hard
disk
drive
must
be
set
as
a
primary
device.
50
IBM
xSeries
205
Type
8480:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
Summary of Contents for 8480 - Eserver xSeries 205
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