6.
Place
the
tray
from
the
option
kit
over
the
riser
card
as
shown
in
the
preceding
illustration,
aligning
the
tray
with
the
screws
on
the
system
board.
Note
the
four
screws
that
are
under
the
four
screw
holes
in
the
tray.
Set
the
tray
aside
and
remove
the
four
screws.
7.
Replace
the
tray
and
secure
the
tray
to
the
system
board
with
screws
from
the
hardware
kit.
8.
Set
any
jumpers
or
switches
on
the
hard
disk
drive,
if
this
requirement
is
specified
on
the
drive
label
or
in
the
documentation
that
comes
with
the
drive.
9.
Place
the
hard
disk
drive
into
the
tray
and,
from
the
rear
edge
of
the
hard
disk
drive,
push
it
into
the
connector
on
the
riser
card
until
the
hard
disk
drive
moves
past
the
lever
at
the
back
of
the
tray.
The
hard
disk
drive
clicks
into
place.
10.
If
you
have
other
options
to
install
or
remove,
do
so
now;
otherwise,
go
to
“Completing
the
installation”
on
page
29.
Installing
memory
modules
You
can
increase
the
amount
of
memory
in
the
blade
server
by
installing
additional
memory-module
options.
The
following
items
describe
the
types
of
dual
inline
memory
modules
(DIMMs)
that
the
blade
server
supports
and
other
information
that
you
must
consider
when
installing
DIMMs:
v
The
system
board
contains
four
DIMM
connectors
and
supports
two-way
memory
interleaving.
v
As
of
the
date
of
this
publication,
the
blade
server
supports
a
minimum
of
512
MB
and
a
maximum
of
8
GB
of
system
memory
(depending
on
the
blade
server
model).
The
DIMM
options
available
are
256
MB,
512
MB,
1
GB,
and
2
GB,
with
the
following
exceptions:
–
256
MB
DIMMs
are
not
supported
by
the
8842-4Tx
and
8842-RTx
models.
–
512
MB
DIMMs
are
not
supported
by
the
8842-RTx
models.
–
2
GB
DIMMs
are
not
supported
by
the
8842-21x,
8842-E1x,
8842-E2x,
8842-41x,
and
8842-4Ax
models.
v
Install
only
2.5
V,
184-pin,
double-data-rate
(DDR),
PC2700,
registered
synchronous
dynamic
random-access
memory
(SDRAM)
with
error
correcting
code
(ECC)
DIMMs.
For
a
current
list
of
supported
DIMMs
for
the
blade
server,
go
to
http://www.ibm.com/servers/eserver/serverproven/compat/us.
v
Install
DIMMs
in
a
matched
pair.
Each
pair
must
be
the
same
capacity,
speed,
type,
and
technology.
You
can
mix
compatible
DIMMs
from
various
manufacturers.
The
second
pair
of
DIMMs
does
not
have
to
be
the
same
size
as
the
first
pair.
v
After
you
install
or
remove
a
DIMM,
the
new
configuration
information
is
automatically
saved
in
the
blade
server
firmware
code.
24
BladeCenter
JS20
Type
8842:
Installation
and
User’s
Guide
Summary of Contents for BladeCenter JS20
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