Lenovo E93 manual Udimm Dimm

Your computer has four slots for installing or replacing DDR3 UDIMMs that provide up to a maximum of 32 GB system memory. When installing or replacing a memory module, use 2 GB, 4 GB, or 8 GB DDR3 UDIMMs in any combination up to a maximum of 32 GB.

The following table provides information about the memory module installation rules that you should consider when installing or removing a memory module. The “X” mark indicates the memory slot(s) into which the memory module(s) should be installed in different situations. The numbers 1, 2, 3, and 4 indicate the installation sequence. To locate the memory module slots, see “Locating parts on the system board” on page 73.

UDIMM	DIMM 1	DIMM 2	DIMM	3	DIMM 4
One UDIMM		X
Two UDIMMs		X, 1			X, 2
Three UDIMMs	X, 3	X, 1			X, 2
Four UDIMMs	X, 3	X, 1	X, 4		X, 2

To install or replace a memory module, do the following:

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Removing the computer cover” on page 85.

3.Lay the computer on its side, and then pivot the drive bay assembly upward to access to the system board.

4.Locate the memory slots. See “Locating parts on the system board” on page 73.

5.Remove any parts that might prevent your access to the memory slots. Depending on your computer model, you might need to remove the PCI Express x16 graphics card for easier access to the memory slots. See “Installing or replacing a PCI card” on page 104.

6.Depending on whether you are installing or replacing a memory module, do one of the following:

•If you are replacing an old memory module, open the retaining clips and gently pull the memory module out of the memory slot.

Figure 39. Removing a memory module

Chapter 9. Replacing FRUs (machine type: 10AR) 109