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1.9 System Memory
The DVMB-554E has two
sockets
for
240-pin memory modules
(SO-
DIMMs). All these sockets use 1.8 V unbuffered double data
rate
synchronous DRAMs (DDR
SDRAM). They are available in capacities
of 256, 512 and
1024 MB. The
sockets
can be
filled in any combination
with
DIMMs of any size,
giving a
total
memory size between
256 MB
and 2GB.
1.9.1 CPU FSB and memory speed
The DVMB-554E
can
accept DDR2 SDRAM
memory chips without
parity. Also note: The
DVMB-554E
accepts DDR2 400/533/667MHz
SDRAM, and DDR2
SDRAM. The DVMB-554E does
NOT
support
ECC (error checking and
correction).
1.10 Memory Installation Procedures
To
install DIMMs, first make
sure
the
two handles
of the DIMM socket
are in the
“open” position. i.e. The handles lean outward.
Slowly slide the
DIMM module
along
the
plastic guides on both ends of the
socket.
Then
press
the DIMM
module right down into the socket, until you
hear a click.
This
is
when the two
handles have automatically locked
the mem- ory
module
into the
correct
position of
the
DIMM socket. To remove
the
memory
module,
just push both handles
outward, and the memory mod-
ule will be
ejected by the
mechanism in the socket.
1.11 Cache Memory
The CPU that
DVMB-554E
supports built-in
2MB
or 4MB cache
memory.