HP Server rp7420 Installation Guide, Fifth Edition - HP 9000 rp7420 Server - Page 22

Introduction Detailed HP 9000 rp7420 Server Description A quad seen in Figure 1-9 is a grouping of four DIMMs. Configurations with 8 or 16 DIMM slots loaded are recommended. The DIMM sizes in a quad can be different but the DIMMs in a rank must be the same size. Table 1-4 DIMM Load Order Number of DIMMs Installed 2 DIMMs = 1 Rank 4 DIMMs = 2 Ranks 6 DIMMs = 3 Ranks 8 DIMMs = 4 Ranks 10 DIMMs = 5 Ranks 12 DIMMs = 6 Ranks 14 DIMMs = 7 Ranks 16 DIMMs = 8 Ranks Action Taken Install First Add Second Add Third Add Fourth Add Fifth Add Sixth Add Seventh Add Last DIMM Location on Cell Board Quad Location 0A and 0B Quad 0 1A and 1B Quad 1 2A and 2B Quad 2 3A and 3B Quad 3 4A and 4B Quad 0 5A and 5B Quad 1 6A and 6B Quad 2 7A and 7B Quad 3 Figure 1-9 DIMM Slot Layout Front Edge of Cell Board DIMM 3B DIMM 7B QUAD 3 DIMM 7A DIMM 3A DIMM 2B DIMM 6B QUAD 2 DIMM 6A DIMM 2A DIMM 1B DIMM 5B QUAD 1 DIMM 5A DIMM 1A DIMM 0B DIMM 4B QUAD 0 DIMM 4A DIMM 0A Rear Edge of Cell Board (Plugs into the System Backplane) 22 Chapter 1