1. Installing Internal Optional DevicesExpress5800/GT110d-S User’s Guide 51Chapter 2 Preparations1.7.1 Maximum supported memory sizeThe maximum available memory size on the server depends on the architecture (x86 architecture) and OSspecs.A list of maximum memory sizesOS The maximum memory sizesupported on each OSThe maximum memory sizesupported on the server4 GB (If using HW-DEP function)* Default factory settingsWindows Server 2003 R2 Standard EditionWindows Server 2008 Standard x86 Edition4 GBAbout 3.3 GB (If not usingHW-DEP function)Note: If you are not using theHW-DEP function, set theExecute Disable Bit (XD Bit)to Disable in the BIOS setup.It is enabled by default.Windows Server 2008 R2 Foundation 8 GB 8 GBWindows Server 2003 R2 Standard x64 EditionWindows Server 2008 Standard x64 EditionWindows Server 2008 R2 Standard32 GBWindows Server 2008 Enterprise x86 Edition 64 GBWindows Server 2008 Enterprise x64 EditionWindows Server 2008 R2 Enterprise2 TB32 GBRedHat Enterprise Linux 5 Server (x86) 16 GB 16 GBRedHat Enterprise Linux 5 Server (EM64T) 256 GB 32 GB1.7.2 Installation orderInstall DIMMs one by one in order of increasing memory size into slots in the order of DIMM#1, DIMM#2,DIMM#3, and DIMM#4.However, if you want to run the server in Dual Channel mode, observe the following when installing theDIMMs:• Install them in pairs• The two memories installed together must be of the same specifications and memory size.• Install the pairs as DIMM#1 and DIMM#2, or DIMM#3 and DIMM#4 (the installation order between thepairs does not matter.)Installation examplesExample Dual ChannelMemory mode DIMM#1 DIMM#2 DIMM#3 DIMM#41 Runs 2 GB DIMM(Standard)2 GB DIMM Not installed Not installed2 Runs 2 GB DIMM(Standard)2 GB DIMM 2 GB DIMM 2 GB DIMM3 Does not run 2 GB DIMM(Standard)2 GB DIMM 2 GB DIMM Not installed4 Does not run 2 GB DIMM(Standard)2 GB DIMM Not installed 2GB DIMM