Dell DR4000 Owner's Manual page 32

Message
The amount of
system memory has
changed.
The following
DIMMs should
in
match
geometry:
x x ...
, ,
The following
DIMMs should
in rank
match
count: x
x
, ,
The following
DIMMs should
match in size:
x x ...
, ,
The following
DIMMs should
in size
match
and geometry:
x x ...
, ,
The following
DIMMs should
in size
match
and rank count:
x x ...
, ,
32
About Your System
Causes
Memory has been added or
removed or a memory
module may be faulty.
Invalid memory
configuration. The specified
memory modules do not
match in size, number of
ranks, or number of
data lanes.
...
Corrective Actions
If memory has been added or
removed, this message is
informative and can be
ignored. If memory has not
been added or removed,
check the SEL to determine
if single-bit or multi-bit
errors were detected and
replace the faulty memory
module.
See "Troubleshooting
System Memory" on
page 129.
Ensure that the memory
modules are installed in a
valid configuration.
See "General Memory
Module
Installation Guidelines" on
page 76.