Brief description of mainboard
Installing/removing main m emory
Technical data
Technology
DDR2 667/DDR2 800 unbuffered 240-pin DIMM modules; 1.8 V; 64 Bit,
with and without ECC
Tot al si ze
256 Mbytes to 8 Gbytes DDR2
Module size 256, 512, 1024 or 2048 Mbytes per module
A current list of the memory m
odules recommended for this mainboard is available
on the Internet at: "
www.fuj
itsu-siemens.com/mainboards".
At least one memory module mu
st be installed. Memory modules with different
memory capacities can be com
bined.
Only use unbuffered 1.8 V me
mory modules with or without ECC.
DDR2 memory modules must m
eet th e PC2-5300U or PC2 -6400U specification.
If you use more than one me
mory module, make sure to distribute the
memory modules over bot
h memory channels. By doing this you use the
performance advantage
s of the dual-channel m ode.
Maximum system perform
ance is achieved when the same memory size
is used in Channel A and C
hannel B.
To simplify equipping
, the slots are colour coded. When inserting the m emory
modules, start with th
e slot furthest away from the processor (slot 4).
With a memory configura
tion of 8 Gbytes, the visible and usable main memory ma y
be reduced to 7.25 Gbyt
es (depending on the system configuration).
More than 4 GB of main me
mory can only be used with a suitable ope rating system.
Channel B
slot 4 2B
1B
2A
1A
slot 2
Channel A
slot 3
slot 1
Number of memory modu
les inserted
Slot to be used 1 2 3 4
Channel A, Slot 1
xxxx
Channel B, Slot 2
xxx
Channel A, Slot 3
xx
Channel B, Slot 4
x
The installation/re
moval is described in the "Basic information on mainboard" manual.
4 - English A26361-D2679-Z100-1-7419, edition 1