Working With Memory - IBM Aptiva E 2270 User Manual

Working with memory

You can add memory to your computer to increase system performance. Your
computer has two connectors for installing memory modules.
Your computer uses dual inline memory modules (DIMMs). The IBM-installed
DIMMs that come with your computer are unbuffered, synchronous dynamic
random access memory (SDRAM).
When installing or replacing DIMMs, the following rules apply:
• Fill each system memory connector sequentially, starting at DIMM 1.
• Use only 3.3 V, (PC 100) 168 PIN, no parity, unbuffered, SDRAM DIMMs.
• Use only 64 or 128 MB DIMMs in any combination of supported SDRAM
DIMMs.
Note: To locate the memory connectors on the system board, see the illustration
on page 22 or the system board label inside your computer.
Before you begin:
• Read "Safety information" on page v and "Handling static-sensitive
devices" on page 19.
• Read the instructions that come with the new system memory.
• Turn off the computer and all other connected devices.
• Disconnect all cables attached to the computer and remove the computer
side panel ("Removing the side panel" on page 21).
• Read "Accessing the system board" on page 21 to learn the location of
the parts on the system board.
Note: You might have to remove an adapter to access the DIMM sockets on the
system board.
To install a DIMM:
1. Open the module retaining clips on the DIMM socket.
Chapter 4. Installing options 23