System Overview 1-7System MemoryThe sixteen SIMM sockets on the memory module (see Figure 1-6) can accom-modate combinations of 16-, 32-, 64-, and 128-MB SIMMs up to a totalmemory capacity of 2048 MB (2 GB). The standard main memory is 64 MB of36-bit, 72-pin, fast page (60- or 70-ns), tin-lead alloy plated edge connector,single- or double sided SIMMs.The SIMMs must be installed in groups of four SIMMs of the same capacity.All SIMMs in a bank must be identical. A bank consists of eight SIMMS.SIMMs in different banks may differ in size. The SIMM sockets are labeled“J1” through “J16.” Slots J1 to J8 make up bank 1; slots J9 to J16 composebank 2.Figure 1-6. Memory Module and SIMM SocketsFor more detailed information about SIMM installation guidelines and samplesof SIMM configurations, see “Adding Memory” in Chapter 8, “Installing Sys-tem Board Options,” in the Dell PowerEdge 6100/200 System Installation andTroubleshooting Guide.See “SIMMs” in Chapter 4 for information on removing and replacing SIMMs.Advanced Expansion SubsystemThe computer system offers advanced expansion subsystems that can support amixture of traditional EISA expansion cards, Plug and Play ISA expansioncards, and PCI expansion cards. The system configuration utility, included withthe system, provides a means of avoiding resource conflicts that might arisefrom such an arrangement.After all legacy cards have been configured with the system configuration utility,the system automatically assigns required memory space, IRQ lines, and DMAchannels to any installed Plug and Play ISA expansion cards and PCI expansioncards the next time the system is rebooted. Chapter 5, “Using the System Con-figuration Utility,” in the Dell PowerEdge 6100/200 System User’s Guidedescribes the system configuration utility and provides instructions for using itto configure the system.J1bank 1bank 2bank 1J16J5J12bank 2