Lenovo TS140 manual Dimm DIMM1 DIMM2 DIMM3 DIMM4

•The maximum system memory is 16 GB (one 4 GB memory module installed in each of the four memory slots).

For more information about the memory modules in your specific server model, use the Setup Utility program. See “Viewing information in the Setup Utility program” on page 21.

For a list of supported ThinkServer memory module options, go to: http://www.lenovo.com/thinkserver

The following illustration helps you to locate the memory slots on the system board.

Figure 11. Memory slots on the system board

	Memory slot (DIMM1)		Memory slot (DIMM3)
1		3
	Memory slot (DIMM2)		Memory slot (DIMM4)
2		4

The following table explains the memory module installation rules for your server. The “X” mark indicates the memory slots into which the memory modules should be installed in different situations.

Note: The installed memory modules must be the same type with the same voltage and frequency.

Table 1. Memory module installation rules

DIMM	DIMM1	DIMM2	DIMM3	DIMM4
One DIMM		X
Two DIMMs		X		X
Three DIMMs	X	X		X
Four DIMMs	X	X	X	X

42ThinkServer TS140 User Guide