Replacing
DRAM
SIMMs
Note
The
factory-set
default
jumper
setting
for
jumper
locations
W3 W2
W4
on
the
model 3202
is
for
the
two
left
pins
on
all
jumpers
to
be jumpered
together
as
shown
in
Figure
5-7
If
you do
not
want
your system
to
be writable
from
the
net
disable the write
to
Flash
memory
option
by moving
the
jumper on
W3
to
the
right
two jumpers
Note
Note
that
the
jumper
ordering for the
model 3202
first
W3
then
W2
then
W4
is
not intuitive
Figure 5-8
shows
the correct
jumper
setting
for
jumper
location
Wi
on
the
model 3202
when
the
system
card
is
oriented
as in
Figure
5-7
There
should
be
no nonnal
conditions
under
which
the
jumper
setting
on
Wi
should
be
changed
Wi
Flash
mode
Figure
5-8
Model
3202 Jumper
Location
Wi
Default
Setting
For
information
on
configuring
your
systems
Flash
memory
refer
to
the Router
Products
Configuration
and
Reference
publication
Repacng
DRAM
SIIMMs
The
router contains primary
main memory
and
secondary
shared memory
Both
primary
and
secondary
memory
size in kilobytes
KB
are
shown
in
the system banner
on
the
console
screen
Primary
memory
is
implemented
with
dynamic
random-access
memory
DRAM
single
in-line
memory
modules
SIMMs
Secondary
memory
used
for
packet
buffering
consists of
fixed
512
KB
megabytes
for
models 3104 and
3204
After booting
up
your
system
will
indicate
in
the system banner the
amount
of
memory
it
has The
following
example shows
system
with
4096
KB
MB
of primary
memory
System Bootstrap
Version
4.60.15
SOFTWARE
Copyright
19861992
by
cisco
Systems
Cisco 3000/030
processor
with
4096
Kbytes
of
memory
Primary
memory may
need
to
be expanded
when
you
use very large routing
tables
or
many
protocols
This
might
be necessary with configurations
in
which
the router
is
set
up
as
connection
device
between
large external networks
and
your
internal
network
Tools
and Equipment
Required
for
DRAM
SIMM
Replacement
ESD
cord
and
wrist
strap
Screwdriver
No
Phillips
DRAM
SIMMs
for your router
model
Maintenance
5-11
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