Installing Memory - HP Integrity rx4640 Operation And Maintenance Manual

Installing Additional Components and Configuring
Installing Processors and Memory

Installing Memory

Your hp Integrity rx4640 Server comes with a sixteen DIMM memory extender board that is minimally configured with 1GB
of memory (four 256Mb DIMMs loaded in quad 0-(slots 0A, 0B, 0C, and 0D). See Figure 4-12, "16 DIMM Extender Board
Minimum Configuration."
An optional thirty-two DIMM memory extender board is available to replace the sixteen DIMM memory extender board and
must also be minimally configured with 1GB in quad 0. See Figure 4-13, "32 DIMM Extender Board Minimum
Configuration."
You may insert additional DIMMs into both sixteen and thirty-two DIMM boards. When adding DIMMs, you must use a
minimum of four like-sized DIMMs in the next available quad.
Supported DIMM Sizes
Supported DIMM sizes are 256MB, 512MB, 1GB, 2GB. Dissimilar DIMM sizes may be used across the entire extender board
but all four DIMMs in each quad must match. For cooling purposes, DIMM fillers must be used in unused slots.
DIMM Slot Fillers
Both the sixteen and thirty-two DIMM extender boards have DIMM slot filler boards placed over all unfilled DIMM slots. As
you fill DIMM quads with additional memory you must remove the DIMM slot fillers covering the affected slots. All
remaining DIMM fillers in unused slots must remain in place to maximize internal cooling. See Table 4-2 on page 48 and
Table 4-3 on page 48.
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Chapter 4