Dell POWEREDGE SC440 Hardware Owner's Manual

Also see for POWEREDGE SC440: Getting started Information update Specification Datasheet

Contents

Dell POWEREDGE SC440 Hardware Owner's Manual Manual pdf 59 page image

Installing System Components 59Memory Module Upgrade KitsThe system is upgradable to 4 GB by installing combinations of 512-MB and 1-GB 533-MHz or 667-MHzunbuffered ECC DDR II single or dual-rank memory modules. You can purchase memory upgrade kitsfrom Dell.Memory Module Installation Guidelines• If only one memory module is installed, it must be installed in connector DIMM_1.• If only one memory module is installed in connector DIMM_1, its capacity must be 512 MB.• If more than one memory module is installed, the memory modules must be installed in pairs ofmatched memory size, speed, and technology.• Memory modules must be installed in ordered pairs in connectors DIMM_1 and DIMM_2, and thenDIMM_3 and DIMM_4.• If a processor with a slower front-side bus rating than the memory is installed, the memory will operateat the processor’s slower front-side bus speed.NOTICE: If you remove your original memory modules from the system during a memory upgrade, keep themseparate from any new memory modules that you may have, even if you purchased the new memory modules fromDell. Use only unregistered or unbuffered ECC DDR II memory modules.Table 3-2 illustrates memory configuration guidelines. It is important to follow the slot installationconfigurations shown here to achieve maximum memory performance.Addressing Memory With 4-GB Configurations (Microsoft® Windows® Operating System Only)Your system supports a maximum of 4 GB of memory using four 1-GB memory modules. Currentoperating systems can use a maximum of 4 GB of address space; however, the amount of memoryavailable to the operating system is slightly less than 4 GB.NOTE: Depending on the type of PCI/PCIe expansion cards that are installed in your system, your system may onlysupport a maximum of 3.4 GB of memory or less.Table 3-2. Memory Configuration GuidelinesTotal Memory DIMM_1 DIMM_2 DIMM_3 DIMM_4512 MB 512 MB none none none1 GB 512 MB 512 MB none none2 GB 512 MB 512 MB 512 MB 512 MB2 GB 1 GB 1 GB none none3 GB 1 GB 1 GB 512 MB 512 MB4 GB 1 GB 1 GB 1 GB 1 GBbook.book Page 59 Tuesday, August 25, 2009 1:14 PM