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SYSTEM CONFIGURATION GUIDE
–
NEC Express5800/B120d
NEC Corporation
Revision 4.0
– July 17, 2013
11
Maximum Available Memory
See the table below for the maximum memory size that you can actually use on your system.
The maximum available memory is less than the maximum physical memory supported by your system
because some chipsets require PCI resource space of about 750MB. PCI resource requirements vary
depending on the type and the number of PCI cards you are using.
Maximum Memory Size Supported by Operating Systems
Maximum Available Memory
Microsoft Windows Server 2003 R2, Standard Edition
Microsoft Windows Server 2008 Standard
4 GB
4 GB (HW-DEP enabled)
App. 3.6 GB (HW-DEP disabled)
Microsoft Windows Server 2003 R2, Standard x64 Edition
Microsoft Windows Server 2008 Standard (x64)
Microsoft Windows Server 2008 R2 Standard
32 GB
32 GB
Microsoft Windows Server 2003 R2, Enterprise Edition
Microsoft Windows Server 2008 Enterprise
64 GB
64 GB
Microsoft Windows Server 2003 R2, Enterprise x64 Edition
1 TB
384 GB
Microsoft Windows Server 2008 Enterprise (x64)
Microsoft Windows Server 2008 R2 Enterprise
2 TB
384 GB
Microsoft Windows Server 2012 Standard
Microsoft Windows Server 2012 Datacenter
4 TB
384 GB
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 6
16 GB
16 GB
Red Hat Enterprise Linux 5 (EM64T)
1 TB
384 GB
Red Hat Enterprise Linux 6 (x86_64)
2 TB
384 GB
VMware ESX 4.1
1
256 GB or
1 TB
256 GB or
384 GB
VMware ESXi 5.0
2
2 TB
384 GB
1
Up to 255 GB of the main memory is available to each virtual machine
2
Up to 1 TB of the main memory is available to each virtual machine.