NEC Express5800 series User Manual page 113

Size of partition to be created
If the system is Windows Server 2003:
The minimum size for the partition on which the system is to be installed can be
calculated with the following formula.
2900MB + Paging File Size + Dump File Size
2900MB
Paging File Size (Recommended) = Installed Memory Size * 1.5
Dump file Size
IMPORTANT:
The above paging file size is necessary for collecting debug
information (memory dump). If you set the default value of paging
file size smaller than the 'recommended' value, the accurate debug
information (memory dump) may not be collected.
The maximum paging file size which can be set on one partition is
4095MB. If the above paging file size exceeds 4095MB, specify
4095MB for the paging file size.
The dump file size for the system with more than 2GB memory
mounted is '2048MB + 12MB'.
If you need to install any application program or the like, add the
necessary space to the partition in order to be able to install these
programs.
For example, if the mounted memory size is 512MB, the minimum required partition
size will be calculated by the above formula as follows:
2900MB + (512MB * 1.5) + (512MB + 12MB) = 4192MB
Installing the Operating System 5-3
= Size necessary to install the system
= Installed Memory Size + 12MB