Lenovo ThinkServer RD630 - Manual (Page 97)

The following table provides information about the memory module installation rules for servers that have
only one microprocessor (CPU1) installed. The “X” mark indicates the memory slot(s) into which the memory
module(s) should be installed in different situations.
Note: The installed memory modules must be the same type (LV RDIMM or RDIMM) with the same rank,
voltage, and frequency.
Figure 47. CPU1 DIMMs
Table 1. Memory module installation rules for servers with one microprocessor
CPU1
DIMM
A1 A2 A3 B1 B2 B3 C1 C2 C3 D1 D2 D3
One
DIMM
X
Two
DIMMs
X X
Three
DIMMs
X X X
Four
DIMMs
X X X X
Six
DIMMs
X X X X X X
Eight
DIMMs
X X X X X X X X
Twelve
DIMMs
X X X X X X X X X X X X
Note: The twelve DIMMs configuration is supported only when you are using normal RDIMMs.
Chapter 6 . Installing, removing, or replacing hardware 85