1
Memory
User-installable
RAM
b oards
pro
vide
the
425
with
RAM
in
incremen
ts
of
8,
16
and
32
Mb
yte
blo
c
ks.
They
ha
v
e
an
Error
Chec
king
and
Correcting
(ECC)
ability
.
Standard
RAM
is
8
Mb
ytes,
expandable
to
64
Mb
ytes
for
the
425t
and
16
Mb
ytes
expandable
to
128
Mb
ytes
for
the
425s.
RAM
b oards
are
used
in
pairs.
There
are
eigh
t
so
c
k
ets
on
the
system
b oard
for
four
b oard
pairs.
RAM
Upgrades
are
a
v
ailable
as
follo ws:
t
w
o
4
Mb
yte
b oards
that
add
an
8
Mb
yte
blo
c
k
of
memory
.
t
w
o
8
Mb
yte
b oards
that
add
a
16
Mb
yte
blo
c
k
of
memory
.
t
w
o
16
Mb
yte
RAM
b oards
that
add
a
32
Mb
yte
blo
c
k
of
memory
(for
425s
only)
F
or
example,
to
obtain
the
maximum
64
Mb
yte
of
RAM
for
the
425t
w
ould
require
four
16
Mb
yte
RAM
Board
pairs
(
i.e.
eigh
t
8
Mb
yte
b oards)
inserted
in
the
eigh
t
so
c
k
ets.
1-4
Product
Description
Summary of Contents for 425s
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