Installation Guide, Seventh Edition - HP Integrity rx4640 Server

Installing Additional Components
Installing Internal Components
Chapter 3
46
DIMM Slot Fillers
Both the 16 and 32 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 3-4 and Table 3-5 for filler requirements of the 16 and 32 DIMM extender boards.
NOTE One DIMM filler board covers two adjacent DIMM slots. As a general rule, only remove DIMM
slot fillers as you add memory and you will always retain the correct configuration.
Table 3-4 DIMM Filler Requirements for 16 DIMM Extender Board
16 DIMM Extender Board
DIMMs Loaded
Fillers Required
a
a. One DIMM filler board covers two adjacent DIMM slots.
4 DIMMs in quad 0 6 fillers total:
2 fillers in quads 1, 2, and 3
(all quads filled)
8 DIMMs in quads 0 and 1 4 fillers total:
2 fillers in quads 2, and 3
(all quads filled)
12 DIMMs in quads 0, 1, and 2 2 fillers total:
2 fillers in quads 3
(all quads filled)
16 DIMMs in quads 0, 1, 2, and 3 No fillers required
Table 3-5 DIMM Filler Requirements for 32 DIMM Extender Board
32 DIMM Extender Board
DIMMs Loaded
Fillers required
a
4 DIMMs in quad 0 12 fillers total:
2 fillers in quads 1, 3, 4, 5, 6 and 7
(quad 2 remains unfilled)