Dell DR4000 - Manual (Page 78)

78 Installing System Components
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.
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.
Table 3-1. RDIMM Dual-Rank Memory Configuration (Per Processor)
Memory
Mode
Memory
Module
Size
Memory
Sockets Single Processor Dual Processor
4 1 2 3 Physical
Memory
(GB) Available
Memory
(GB) Physical
Memory
(GB) Available
Memory
(GB)
Optimizer 4 GB X X X X 16 all 32 all
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