A52, M52 Series ThinkCentre Deskop PC User Guide
Installing memory
Your computer has two connectors for installing double date rate dual inline
memory modules (DDR DIMMs) that provide up to a maximum of 4 GB of system
memory.
When installing memory modules, the following rules apply:
v Use 1.8 V, 240-pin, double data rate 2 synchronous dynamic random access
memory (DDR2 SDRAM).
v Use 256 MB, 512 MB, 1 GB, or 2 GB DIMMs in any combination.
Note:
Only DDR2 SDRAM DIMMs can be used.
To install a memory module:
1. Open the computer cover. See “Opening the cover” on page 10.
2. Access the system board. See “Accessing system board components and drives”
on page 12.
3. Locate the memory connectors. See “Identifying parts on the system board” on
page 13.
4. Open the retaining clips.
5. Position the memory module over the memory connector. Make sure that the
notch 1 on the memory module aligns correctly with the connector key2 on
the system board. Push the memory module straight down into the connector
until the retaining clips close.
6. Reinstall the PCI riser assembly if it was removed.
14 User Guide