Lenovo 2593, 2594, 2579, 2577, 2595, 2592 manual CPU1 Dimm CPU2 Dimm

The following table provides information about the memory module installation rules for servers that have two microprocessors (CPU1 and CPU2) 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 48. CPU1 DIMMs and CPU2 DIMMs

Table 2. Memory module installation rules for servers with two microprocessors

CPU1 DIMM

CPU2 DIMM

A1

A2

A3

B1

B2

B3

C1

C2

C3

D1

D2

D3

A1

A2

B1

B2

C1

C2

D1

D2

Two

X

X

DIMMs

Four

X

X

X

X

DIMMs

Six

X

X

X

X

X

X

DIMMs

Eight

X

X

X

X

X

X

X

X

DIMMs

Twelve

X

X

X

X

X

X

X

X

X

X

X

X

DIMMs

Sixteen

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

DIMMs

Twenty

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

DIMMs

Note: The twenty DIMMs configuration is supported only when you are using normal RDIMMs.

84ThinkServer User Guide