Lenovo 82121QU, User Manual, Page: 30 / 70

Installing memory
Your computer has four connectors for installing double date rate dual inline
memory modules (DDR2 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 (up to 4GB).
Note: Only DDR2 SDRAM DIMMs can be used.
To install a memory module:
1.
Open the computer cover. See “Opening the cover” on page 11.
2. Pivot the drive bay assembly upward.
3.
Locate the memory connectors. See “Identifying parts on the system board” on
page 13.
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User Guide