Advantech DVMB-554E User Manual

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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.