Lenovo 8991 Laptop User Manual


 
Installing memory
Your computer has two connectors for installing dual inline memory modules
(DIMMs) that provide up to a maximum of 4.0 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, 1.0 GB, or 2.0 GB memory modules in any combination up
to a maximum of 4.0 GB.
To
install a memory module:
1. Remove the computer cover. See “Removing the cover” on page 20.
2. Locate the memory connectors. See “Identifying parts on the system board” on
page 22.
3. Open the retaining clips.
4. Make sure that the notch 1 on the memory module aligns correctly with the
connector key2 on the system board. Push the memory module straight
down into the connector until the retaining clips close.
What to do next:
v To work with another option, go to the appropriate section.
v To complete the installation, go to “Replacing the cover and connecting the
cables” on page 37.
Chapter 3. Installing options 25