System Board - Dell PowerEdge M620 Owner's Manual

Table 1-27. Blade Messages
Message
Alert! Unsupported
memory, incomplete
sets, or unmatched
sets. The
following memory
DIMMs have been
disabled:l,m,n
Caution! NVRAM_CLR
jumper is
installed on

system board.

CPUs with
different cache
sizes detected.
Decreasing
available memory.
DIMMs <A1-A8>
disabled - SMI
channel training
failure.
DIMMs <A1-A8>
disabled - Memory
Buffer
communication
error.
122
About Your System
(continued)
Causes
The installed memory
configuration is invalid.
NVRAM_CLR jumper is
set to "on."
Mismatched processors are
installed.
Faulty or improperly
installed memory
modules.
The memory modules are
not properly seated.
The memory module
connectors or the
processor socket may be
exposed to dust.
The processor has bent
pins.
Corrective Actions
Add, move, or remove
memory modules to achieve
a configuration supported by
the system. See "System
Memory" on page 171.
Set the NVRAM_CLR
jumper to "off." See "Blade
System Board Jumper
Settings" on page 331 for the
jumper location.
Install a correct version of
the processor so that both
processors have the same
cache size. See "Processors"
on page 243.
Ensure that all memory
modules are properly
installed. See
"Troubleshooting Blade
Memory" on page 319.
Reseat or replace Memory
Modules. See "System
Memory" on page 171.
Ensure that the memory
module connectors and
processor sockets are clean.
Verify that there are no bent
pins on the processor. If the
processor has bent pins, see
"Getting Help" on page 361.