Advantech DVMB-554E - Manual (Page 25)

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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.