Installing An Adapter Card; Opening The Retaining Clips; Installing The Memory Module - Lenovo ThinkStation 4157 Hardware Installation And Replacement Manual

• Use 1 GB, 2 GB or 4 GB memory modules in any combination up to a maximum of 24 GB.
• Install memory modules into the blue color memory slots first.
Note: Only DDR3 ECC UDIMMs can be used.
To install a memory module:
1. Remove the computer cover. See "Removing the computer cover" on page 11.
Note: For this procedure, it helps to lay the computer on its side.
2. Locate the memory slots. See "Identifying parts on the system board" on page 8.
3. Open the retaining clips as shown.
Figure 7. Opening the retaining clips
4. Position the new memory module over the memory slot. Make sure the notch
aligns correctly with the slot key
the slot until the retaining clips close.
Figure 8. Installing the memory module
5. Go to Chapter 4 "Completing the parts replacement" on page 47.

Installing an adapter card

This section provides information and instructions for installing an adapter card.
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ThinkStation Hardware Installation and Replacement Guide
2 on the system board. Push the memory module straight down into
1 on the memory module