Dell DR4000 Owner's Manual - Page 78

Optimizer (Independent Channel) Mode In this mode, all three channels are populated with identical memory modules. This mode permits a larger total memory capacity but does not support SDDC with x8-based memory modules. A minimal single-channel configuration of one 1 GB memory module per processor is also supported in this mode. Table 3-1 shows a sample memory configuration that follows the appropriate memory guidelines stated in this section. Table 3-1. RDIMM Dual-Rank Memory Configuration (Per Processor) Memory Mode Optimizer Memory Module Size 4 4 GB X Memory Sockets 123 XXX Single Processor Physical Available Memory Memory (GB) (GB) 16 all Dual Processor Physical Available Memory Memory (GB) (GB) 32 all Removing Memory Modules WARNING: The memory modules are hot to the touch for some time after the system has been powered down. Allow time for the memory modules to cool before handling them. Handle the memory modules by the card edges and avoid touching the components on the memory module. CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. 1 Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet. 2 Open the system. See "Opening the System" on page 60. 3 Remove the cooling shroud. See "Removing the Cooling Shroud" on page 62. 4 Locate the memory module sockets. See Figure 6-1. 78 Installing System Components