Lenovo 4223, 4228, 4229 manual Installing or replacing the optical drive, Installing a memory module

Models: 4229 4223 4228

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9.Position the new memory module over the memory slot. Make sure that the notch 1 on the memory module aligns correctly with the slot key 2 on the system board. Push the memory module straight down into the slot until the retaining clips close.

Figure 13. Installing a memory module

10.To install the memory fan duct, secure the rear of the fan duct with the retaining clips of the memory slots, and then pivot the fan duct downward until the fan duct snaps into position.

Figure 14. Installing the memory fan duct

11.Reconnect the memory fan cable to the system board. See “Locating parts on the system board” on page 58.

12.Reinstall the PCI Express x16 graphics card if you have removed it.

What to do next:

To work with another piece of hardware, go to the appropriate section.

To complete the installation or replacement, go to “Completing the parts replacement” on page 104.

Installing or replacing the optical drive

Attention: Do not open your computer or attempt any repair before reading and understanding the “Important Safety Information” on page 1.

72ThinkStation Hardware Maintenance Manual

Page 78
Image 78
Lenovo 4223, 4228, 4229 manual Installing or replacing the optical drive, Installing a memory module