Gateway 400SD4 Memory Installation Instructions
The memory bay is located on the bottom of the computer. This computer uses memory modules called Small Outline Dual Inline Memory Modules (SO-DIMMs). The modules used are 200-pin industrial standard PC 1600 DDR-SODIMMs available in various capacities. Any module can be placed in any available slot. The maximum memory supported for this notebook is 512 MB. Use only memory modules designed for the Gateway® 400 for upgrading the memory.
Warning: Disconnect the power adapter, disconnect the modem and network cables, and remove the battery before removing the memory bay cover. Replace the cover before restoring power or reconnecting the modem and network cables.
Note: Before beginning, review electrostatic discharge (ESD) precautions.
Adding or Replacing Memory Modules
- Shut down the computer, and then disconnect the power adapter and modem and network cables.
- Turn the computer over, and then remove the battery.
- Remove the memory bay cover screw.
- Open the memory bay cover.
- To remove a memory module, locate the two clips on each side of the memory module, and then slowly press outward on the two clips at the same time until the module tilts upward.
- Pull the memory module out of the slot.
- Hold the new or replacement module at a 30-degree angle and press it into the empty memory slot. This module is keyed so that it can only be inserted in one direction. If the module does not fit, verify that the notch in the module lines up with the tab in the memory bay.
- Gently push down on the SO-DIMM and make sure that the two clips on each side of the SO-DIMM click into place.
- Replace the memory bay cover, and then replace the screw.
- Insert the battery, and then turn over the computer.
- Connect the AC adapter, modem and network cables, and then turn on the computer.