Installing Or Replacing The Optical Drive - Lenovo Think station 4223 User Manual

9. Position the new memory module over the memory slot. Make sure that the notch
module aligns correctly with the slot key
down into the slot until the retaining clips close.
Figure 17. 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 18. Installing the memory fan duct
11. Reconnect the memory fan cable to the system board. See "Locating parts on the system board"
on page 10.
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 56.

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 v.
2 on the system board. Push the memory module straight
Chapter 5
1 on the memory
.
Installing or replacing hardware
37