NEC Express5800/R120b-1 User Manual page 241

When the system is Windows Server 2008
Follow the procedure below to specify.
1.
Select [Control Panel] and click [System].
The [System] dialog box appears.
2.
Click [Advanced system settings].
The [System Properties] dialog box appears.
3.
Select [Advanced] tab.
Click [Settings] on the [Startup and Recovery] group box.
4.
Modify [Dump file:] in the [Write debugging information] group box.
e.g. Write the debug information in D drive with the file name "MEMORY.DMP".
D:\MEMORY.DMP
IMPORTANT:
Windows Server 2008 64-bit (x64) Edition
To specify "Complete Memory Dump" to write the debug
information is recommended. If the mounted memory size is larger
than 2GB, "Complete Memory Dump" cannot be specified so that
specify "Kernel Memory Dump" instead.
Specify the drive where there is a free area more than the size of
"the memory capacity mounted on Express server + 300MB".
In case the mounted memory size exceeds 2GB due to the added
memory, change the write debugging information to [Kernel
Memory Dump] before adding memory. The size of debugging
information (memory dump) to be taken also changes due to adding
memory. Verify the size of the empty space in the debugging
information (memory dump) write destination drive.
Windows Server 2008 32-bit (x86) Edition
To specify "Complete Memory Dump" to write the debug
information is recommended. If the mounted memory size is larger
than 2GB, "Complete Memory Dump" cannot be specified so that
specify "Kernel Memory Dump" instead.
Specify the drive where there is a free area more than the size of
"the memory capacity mounted on Express server + 300MB"(In
case the memory capacity is more than 2GB, a free area of
"2048+300MB" or more).
In case the mounted memory size exceeds 2GB due to the added
memory, change the write debugging information to [Kernel
Memory Dump] before adding memory. The size of debugging
information (memory dump) to be taken also changes due to adding
memory. Verify the size of the empty space in the debugging
information (memory dump) write destination drive.
Installing the Operating System with Express Setup 5-91